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Name Index

Abrikosov, A. A. 4

Anderson, P. W. 6, 199,

466, 585

Baker, H. F. 441

Bardeen, J. 3, 4

Becquerel, H. 52

Bednorz, J. G. 6 Berezinskii, V. L. 555 Bernal, J. D. 22 Bethe, H. 3, 564, 642 Binnig, G. 270 Blech, I. 3, 315

Bloch, F. 3, 65, 186, 509, 523, 528 Bogoliubov, N. N. 542

Born, M. 88, 185

Bose, S. N. 396 Bouckaert, L. P. 647 Bragg, W. H. 2, 241 Bragg, W. L. 2, 241, 242 Brattain, W. H. 4 Bravais, A. 113 Brillouin, L. 3, 123, 436 Brockhouse, B. N. 439

Buckminster Fuller see Fuller, R. Buckminster

Burgers, J. M. 285, 286

Cahn, J. W. 3, 315

Chandrasekhar, S. 24

Clausius, R. J. E. 375

Coleman, S. 201

Cooper, L. N. 4

Curie, M. 52

Curie, P.

52

 

 

Curl, R. F., Jr. 30

Darwin, C. G. 38, 259

Debye, P.

 

267, 389, 442

de Haas, J. W. 45

Dirac, P. A. M.

32, 37, 92, 464

Dorda, D.

 

6

 

 

Drude, P.

 

1

 

 

Dulong, P. L.

 

384

Dyson, F. J.

531

Dzyaloshinsky, I. E. 4

Eckart, C.

 

53

 

Einstein, A.

45, 387, 396

Escher, M. C.

 

115

Evjen, H. M.

84

Ewald, P. P.

84, 120, 259, 264

Faigel, G.

 

252

 

Faraday, M.

513

Fedorov, J. S.

 

166

Fermi, E.

71

 

 

Feynman, R. P.

532

Fibonacci

 

317

 

Frank, F. C. 290, 297

Frenkel, J.

 

283, 470

Friedel, G.

 

24

 

Friedrich, W.

2, 241

Fuller, R. Buckminster 29

Gerber, Ch.

270

Ghosh, D. K.

577

Ginzburg, V. L.

4

680 Name Index

Goldschmidt, V. M. 236

Goldstone, J. 200

Gorkov, L. P. 4

Gossard, A. C. 6

Gratias, D. 3, 315

Gri th, R. B. 497

Grüneisen, E. 419, 425

Gutzwiller, M. C. 5

Haldane, F. D. M. 579

Hausdor , F. 441

Haüy, R.-J. 109

Heisenberg, W. 3, 92, 464, 470

Heitler, W. 90

Hermann, C. 125

Higgs, P. W. 201

Holstein, T. 530

Hooke, R. 365

Hubbard, J. 5

Hund, F. 42, 96

Ising, E. 472

Jordan, P. 533

Josephson, B. D. 497

Kadano , L. P. 498

Kamerlingh Onnes, H. 2

Kármán, T. von

185

Kasuya, T.

466

Kerr, J. 513

 

 

Kittel, C.

465, 466

Klitzing, K. von

6

Knight, W. D.

 

72

Knipping, P.

2, 241

Kondo, J.

5

 

 

Korringa, J.

71

Kosterlitz, J. M.

555

Kramers, H. A. 64, 182, 466

Kronig, R.

64

 

Kroto, Sir H. W. 30

Lamé, G.

365

 

Landé, A.

54

 

Landau, L. D.

 

3, 28, 199, 489

Landsberg, G.

 

434

Langevin, P.

50, 53

Larmor, J.

50

 

Laue, M. von

2, 241

Laughlin, R. B.

6

Leggett, A. J. 4

Lehmann, O. 24

Lennard-Jones, J. E. 81, 97

Lenz, W. 472

Lieb, E. 578

Lifshitz, E. M. 200

Lindemann, F. A. 413

London, F. 78, 90

Lorentz, H. A. 2, 374, 375

Lorenz, L. V. 375

Lyddane, R. H. 377

Madelung, E. 84

Majumdar, C. K. 577

Maleev, S. V. 531

Mandelstam, F. 434

Mattis, D. C. 578

Mauguin, C.-V. 125

Mayer, J. E. 88

Mermin, N. D. 411

Miller, W. H. 119

Mössbauer, R. L. 72

Mossotti, O.-F. 375

Mott, N. F. 6

Müller, K. A. 6

Mulliken, R. S. 96

Néel, L. 453, 461, 509

Noether, E. 191

Orowan, E. 285

Pauli, W. 3 Pauling, L. C. 236

Peierls, R. E. 3, 28, 193 Penrose, R. 323 Pepper, M. 6

Petit, A. T. 384

Pisano, L. see Fibonacci Planck, M. 387

Polányi, M. 285 Primako , H. 530 Purcell, E. M. 65

Quate, C. F. 270

Racah, G. 672

Raman, C. V. 434

Rashba, E. I. 38

Reinitzer, F. 24

Rohrer, H. 270

Ruderman, M. A. 465, 466

Rushbrook, G. S. 497

Russell, H. N. 40

Sachs, R. G. 377 Saunders, F. A. 40 Scherrer, P. 267 Schoenflies, A. M. 125, 166 Schrie er, J. R. 4 Schrödinger, E. 32 Schultz, T. D. 578 Schwinger, J. 532

Seitz, F. 3, 117, 157

Shechtman, D. 3, 315

Shockley, W. B. 4, 295

Shubnikov, A. V. 167 Shull, C. G. 439

Sklodowska, M. see Curie, M. Slater, J. C. 3, 101

Smalley, R. E. 30 Smoluchowski, R. 647 Sommerfeld, A. 3 Störmer, H. L. 6

Taylor, G. I. 285

Tegze, M. 252

 

 

 

Name Index

681

Teller, E. P.

377

 

Thomson, J. J.

1

 

Thouless, D. J.

555

 

Tomonaga, S.

532

 

Tsui, D. C.

 

6

 

 

van der Waals, J. D. 78

 

Van Hove, L. 406, 656

 

Van Vleck, J. H. 6, 60

 

Voigt, W.

 

368

 

 

Volterra, V.

284

 

Voronoi, G.

117

 

Wagner, H.

 

411

 

Waller, I.

442

 

 

Weiss, Ch. S.

119

 

Weiss, P.

474

 

 

Widom, B.

 

498

 

Wigner, E. P.

3, 53, 117, 172, 533, 647

Wilson, A. H.

3

 

Wilson, K. G.

500

 

Yosida, K.

 

466

 

Zeeman, P.

 

2

 

 

Zener, C.

468

 

 

Subject Index

4-methoxy-benzilidene-4-butyl-aniline 24

A1 structure

204, 217

A15 structure

204, 209

A2 structure

204, 213

A3 structure

204, 226

A3 structure

204, 226

A4 structure

204, 221

A8 structure

204, 231, 232

A9 structure

204, 234

absorption edge

269

acoustic branch

343

acoustic vibrations 340, 360–361

actinoids 179, 218

AFM see atomic force microscope

Ah structure

204, 207

AlFe3 structure 220

alkali halides

76, 83, 219, 282

alkali metals

213

alkaline-earth metals 213, 218

almost periodic functions 311

amorphous materials

21, 303

angular frequency 339

angular momentum

665–672

anharmonicity

421

 

anisotropy

 

 

constant

507

 

magnetic 471–473, 504–513 annihilation operator

of antiferromagnetic magnon 542 of magnon 525

of phonon 394–395

anomalous dimension

499

 

 

antibonding state

98

 

 

 

antiferromagnetic ground state

see

ground state, of antiferromagnet

antiferromagnetic materials

453–459

antiferromagnetic ordering

 

 

Néel type

 

 

 

 

 

absence of in one-dimensional

systems

551

 

 

 

 

presence of in two-dimensional

systems

551

 

 

 

 

antiferromagnetism

453–459

 

in the Heisenberg model

464

 

antiferromagnon see

magnons,

 

antiferromagnetic

 

 

antiperiodic boundary conditions

see

boundary conditions, antiperiodic

antiphase boundary

300, 301

 

antiphase domains

301

 

 

antisite defects

283

 

 

 

anti-Stokes component

434

 

antiunitary operator

182

 

 

atomic force microscope 270

 

atomic form factor

249

 

 

atomic packing factor

see

packing

fraction

 

 

 

 

 

B1 structure

204, 219

 

 

B2 structure

204, 207, 208

 

B3 structure

204, 221

 

 

B4 structure

204, 228

 

 

B8 structure

204, 227, 228

 

Baker–Hausdor formula

441

 

basis 114

 

 

 

 

 

684

Subject Index

 

 

BCS theory

 

4

 

 

 

 

 

benzene-hexa-n-alkanoate 24

Berezinskii–Kosterlitz–Thouless

 

phase

 

556

 

 

 

Berezinskii–Kosterlitz–Thouless

 

transition

 

555

 

 

critical exponent in

see critical

 

exponent, in Berezinskii–

 

Kosterlitz–Thouless transition

Bernal model

22, 23, 304

 

Bernoulli numbers

618

 

Bessel functions

620

 

 

Bethe ansatz

 

564–566

 

 

biaxial nematic phase

26

 

BiF3 structure

 

220

 

 

 

bipartite lattice

520

 

 

BKT phase

 

see Berezinskii–

 

Kosterlitz–Thouless phase

black-and-white group

167

 

black-and-white lattice

167

 

Bloch equations

65

 

 

 

Bloch T 3/2 law

 

528

 

 

corrections to

529

 

 

Bloch’s theorem

186

 

 

Bloch wall

 

509

 

 

 

body-centered cubic structures

 

210–214

 

 

 

 

 

Bogoliubov transformation

 

application of

546

 

 

for antiferromagnets

542

 

Bohr magneton

 

44, 588

 

Bohr radius

 

50, 588

 

 

bonding state

 

98

 

 

 

Born–Mayer approximation

88

Born–von Kármán boundary condi-

 

tion

see

boundary conditions,

 

Born–von Kármán

 

 

Bose–Einstein statistics

396

 

boundary conditions

 

 

 

antiperiodic

 

186

 

 

 

Born–von Kármán

185, 186, 338

twisted

186

 

 

 

 

 

Bragg condition

243

 

 

Bragg peaks

243

 

 

 

shape of

 

252

 

 

 

temperature dependence of

443–444

Bragg plane

245

 

 

 

Bravais cell

 

117, 118, 144

 

Bravais group

 

140

 

 

 

Bravais lattices

113

 

 

 

types in three dimensions

141,

146–154

 

 

 

 

 

 

types in two dimensions

140,

142–145

 

 

 

 

 

 

Brillouin function

57

 

 

Brillouin scattering

436–437

Brillouin zone

123, 190

 

 

of bcc lattice

212

 

 

 

of fcc lattice

216

 

 

 

size of, in antiferromagnets

519

buckyball

30

 

 

 

 

 

bulk defects see volume defects

bulk modulus

 

365, 369

 

 

bulk susceptibility

see

 

 

susceptibility, volume

 

Burgers circuit

286, 287

 

 

Burgers dislocation

 

 

 

see screw dislocation

 

 

Burgers vector

286, 287

 

 

C1 structure

 

204, 219

 

 

C14 structure

 

204

 

 

 

C15 structure

 

204, 223

 

 

C1b structure

 

223

 

 

 

C2 structure

 

204

 

 

 

C3 structure

 

204, 209, 210

 

C4 structure

 

204

 

 

 

calamitic nematic phase

25

 

Cauchy relations

369

 

 

ccp structure see cubic crystal

structures, close-packed

 

center-of-mass order

19

 

 

cesium chloride

 

 

 

 

Madelung energy of 87

 

structure

204, 207

 

 

chain-like structures

229–233

character table

 

 

 

 

 

of Oh group

648

 

 

 

of the double group O

648

chemical shift

 

72

 

 

 

chiral nematic

phase

 

 

see cholesteric phase

 

 

cholesteric phase

26

 

 

Clausius–Mossotti relation

375

Clebsch–Gordan coe cients

671

close packing

 

 

 

 

 

 

cubic

217

 

 

 

 

 

 

hexagonal

226

 

 

 

closure domains

511

 

 

coherent scattering

439–443

cohesive energy

77

 

 

of covalent crystals

105

of ionic crystals

84

 

 

of molecular crystals

 

81–83

coincident-site lattice

299, 300

Coleman’s theorem

201, 411

color center

282

 

 

 

color group

 

 

 

 

 

black-and-white 167

 

gray

167

 

 

 

 

 

columnar phase

28

 

 

compatibility condition

 

639

compressibility

365

 

 

compressional waves 366

compression

modulus

 

 

see bulk modulus

 

 

condensed phases

13

 

 

configurational entropy

 

276

configuration interaction

100

constant

 

 

 

 

 

sti ness see sti ness constant

continuous groups

642–646

conventional unit cell

117, 144

coordination number

208

correlation function

16

 

correlation length

494–496

coupling

 

 

 

 

 

jj

40

 

 

 

 

 

LS

40

 

 

 

 

 

Russell–Saunders

40

 

covalent bond 89–105

 

 

covalent crystal

89

 

 

covalent radius

233

 

 

creation operator

 

 

 

 

of antiferromagnetic magnon 542

of magnon

525

 

 

 

of phonon

394–395

 

 

critical exponent

491, 496–500

in Berezinskii–Kosterlitz–Thouless

transition

555

 

 

critical temperature

 

 

of antiferromagnets

481

of ferrimagnets

 

461

 

 

of ferromagnets

475

 

cross section

653–656

 

 

of coherent scattering

439–443

crowdion 280

 

 

 

 

 

 

 

Subject Index

685

crystal class

162

 

 

 

 

 

crystal family

 

141

 

 

 

 

crystal field

174

 

 

 

 

 

crystal-field splitting

174

 

 

crystal momentum

 

189

 

 

 

crystal structure

 

 

 

 

 

types of

203

 

 

 

 

 

crystal systems

 

140

 

 

 

 

hierarchy

of,

in

three

 

 

 

dimensions

156

 

 

 

hierarchy of, in two dimensions

155

crystallite

21

 

 

 

 

 

 

 

CsCl structure

 

208, 237

 

 

 

Cu structure

217

 

 

 

 

 

Cu3Au structure

204, 208

 

 

CuAu structure

300

 

 

 

cubic crystal structures

205–224

 

body-centered

210–214

 

 

close-packed

 

217

 

 

 

 

face-centered

214–221

 

 

 

simple 205–210

 

 

 

 

cubic lattice

153

 

 

 

 

 

cuprite structure

204, 210

 

 

Curie’s law

52

 

 

 

 

 

 

deviation from

182

 

 

 

Curie susceptibility

53

 

 

 

Curie temperature

450, 475

 

 

of ferrimagnetic materials

461

 

of ferromagnetic materials

451–453

Curie–Weiss law

476

 

 

 

cyclic group

130

 

 

 

 

 

D0 structure

204

 

 

 

 

 

D03 structure

 

220

 

 

 

 

D09 structure

 

209

 

 

 

 

D2 structure

204

 

 

 

 

 

D21 structure

 

209

 

 

 

 

D23 structure

 

221

 

 

 

 

D2e structure

 

209

 

 

 

 

D2f structure

 

220

 

 

 

 

D8 structure

204

 

 

 

 

 

dangling bonds

305

 

 

 

 

Debye frequency

401

 

 

 

Debye function

 

416, 611

 

 

 

Debye model

389–390

 

 

 

Debye–Scherrer method

267

 

 

Debye temperature

412, 596

 

 

Debye–Waller factor

442

 

 

686

Subject Index

defects see also line defects; pla-

 

nar defects; point defects;

 

volume defects

dislocations

283–292

grain boundaries 298

degeneracy

 

 

accidental

 

173

lifting of

173

delta function

615

dense random packing model 304

density of states

integrated

 

399

of phonons

398–409

destruction

operator

 

see annihilation operator

dhcp structure see hexagonal crystal structures, double close-packed

diamond structure

204, 221–224

di raction

 

 

dynamical theory of 258–260

theory of 242–260

digamma function

619

dihedral group

130

 

dimerized chain

337, 345–348

dipole–dipole interaction 70, 80, 463, 661

Dirac delta function 615

direct

exchange

 

see exchange, Heisenberg

direct lattice

122

 

director

25

 

 

Dirichlet’s construction

117

in reciprocal lattice

123

disclinations

290

 

screw

291

 

 

wedge

291

 

discotic columnar phase

28

discotic nematic phase

25, 26

dislocation line 284

 

dislocations

283–292

 

edge

284, 285

 

mixed

285, 286

 

partial

 

 

 

Frank

297

 

Shockley

295

 

screw

285

 

 

dispersion relation

 

for antiferromagnetic magnons 520, 543

for ferromagnetic magnons 518, 524

for phonons

395

for spinons

 

in an isotropic

antiferromagnet 571

for XY model

573

distribution function

Bose–Einstein

see

Bose–Einstein statistics

divacancy

280

 

domain wall

504

width of

511

 

domains 508–513

double exchange

468–469

double group 179, 641–642

double hexagonal close-packed structure see hexagonal crystal structures, double close-packed

Drude–Lorentz model

2

 

 

Dulong–Petit law

384

 

 

 

dynamical interactions

534

 

 

dynamical matrix

356

 

 

 

dynamical structure factor

440, 659

Dyson–Maleev transformation

531

and the Hamiltonian of interacting

magnons

534

 

 

 

E2 structure

204

 

 

 

 

E21 structure

209

 

 

 

easy axis of magnetization

472

 

easy plane of magnetization

472

edge dislocation

284, 285

 

 

e ective magnetic moment

58

 

e ective magneton number

58

 

Einstein model

387–389

 

 

elastic constants

 

 

 

 

Lamé see Lamé constants

 

of crystals

367–371

 

 

 

Voigt see Voigt elastic constants

elastic waves

363–367

 

 

 

electron paramagnetic resonance

61

electron–phonon interaction

193

electron spin resonance

61

 

 

elementary excitations

 

 

 

in magnetic systems

515

 

 

phonons see phonons

 

 

entropy

 

 

 

 

 

of vortices in XY model

554

 

EPR 61

 

 

 

 

 

equation of state

 

 

 

 

for crystal

418–420

 

 

equipartition theorem

384

 

equivalent wave vectors

190

 

ESR 61

 

 

 

 

 

 

Euler’s constant

see Euler–Mascheroni

constant

 

 

 

 

 

Euler’s equation

510

 

 

Euler’s gamma function

619

Euler–Lagrange equation 359

Euler–Mascheroni constant

620

Evjen’s method

84

 

 

 

Ewald construction

264–265

for Laue method

266

 

for powder method

 

268

 

for rotating-crystal method

267

Ewald’s method

84

 

 

 

Madelung energy of NaCl crystal 86

Ewald sphere

264

 

 

 

EXAFS

269, 309

 

 

 

exchange

463

 

 

 

 

 

direct

see exchange, Heisenberg

double

see double exchange

Heisenberg

463–464

 

 

RKKY

see RKKY interaction

super-

see superexchange

 

exchange energy

464

 

 

exchange integral

92

 

 

exchange interaction

42

 

extinction length

263

 

 

F -center

282

 

 

 

 

 

face-centered cubic structures

214–221

factorial function

619

 

 

faithful representation of point groups

130

 

 

Faraday e ect

513

 

Fermi contact term 71, 661

Fermi integral

612

 

Fermi pseudopotential

247, 439

ferrimagnetic materials

461–462

ferrimagnetism

461, 462

ferromagnetic materials

450–453

ferromagnetism

450–453, 470

Fibonacci chain

317–323

fine structure

40

 

of paramagnetic resonance 68

fine-structure constant

36

 

Subject Index

687

first theorem of condensed-matter

 

physics

199

 

fixed point

502

 

flip-over process see umklapp process Floquet’s theorem 186 fluctuation–dissipation theorem 52

fluorite structure

204, 219

flux quantum 587

 

 

Fourier transform

601

 

Frank partial dislocation

297

free energy

 

 

of vortices in XY model

555

free enthalpy see Gibbs free energy

Frenkel defect

283

 

 

Fresnel’s equations

259

 

fullerene

30, 76

 

 

fullerite

30, 221

 

 

infrared absorption in

432

Raman scattering in

435

g-factor

45

 

 

 

gamma function

619

 

γ-selenium structure

204

gap

in magnon spectrum for antiferro-

magnets 546

 

 

Gaussian function

 

 

Fourier transform of

609

Gaussian system of units

590

Gell-Mann matrices

646

Gibbs free energy

277

 

Gibbs potential see Gibbs free energy

glass

21

 

 

 

metallic

see metallic glass

spin

see spin glass

 

glide line 158

 

 

glide plane

158

 

 

glide reflection 158

 

Goldstone bosons

200, 397

Goldstone’s theorem

200, 397, 546, 547

grain boundaries

293, 298

tilt

298

 

 

 

twist

298

 

 

graphite structure

204

gray groups

168

 

 

Gri ths inequality

497

ground state

 

 

 

of antiferromagnet

543–544

and the Néel state

543–544, 568

688

Subject Index

 

 

of crystal lattice

410–413

of ferromagnet

522

 

 

group theory

633–651

 

 

Grüneisen parameter

419

 

Grüneisen relation

425

 

gyromagnetic ratio

45

 

H1 structure

204

 

 

 

H11 structure

223

 

 

Haldane gap

579

 

 

 

half-Heusler structure

223

Hall e ect

 

 

 

 

quantum 6

 

 

 

 

Hamiltonian

 

 

 

 

of interacting magnons

534

Hankel functions

620

 

 

harmonic approximation

331–337

harmonic oscillator

392–393

Hartree energy

588

 

 

Hartree–Fock approximation 96

hcp structure see hexagonal crystal

structures, close-packed

 

Heaviside step function

608, 616

HEED 262

 

 

 

 

Heisenberg chain

 

 

 

anisotropic ferromagnetic

 

spin-1/2

560–566

 

 

antiferromagnetic

 

 

spin-1 578–580

 

 

spin-1/2

566–569

 

 

Heisenberg exchange

see exchange,

Heisenberg

 

 

 

Heisenberg model

469

 

Hamiltonian

 

 

 

 

eigenstates of

521–522, 526–527,

538, 540

 

 

 

 

quadratic and quartic parts

534–535

 

 

 

 

Heitler–London approximation 90

Helmholtz free energy

278

 

of phonon gas

414

 

 

Hermann–Mauguin symbols

125

Hermite polynomials

623

 

heteropolar bond

83

 

 

Heusler alloy see Heusler phase

Heusler phase

204, 220

 

hexa-n-alkoxy triphenylene

24

hexagonal crystal structures

224–229

close-packed

204, 224, 226

 

double close-packed

224, 226

simple

224

 

 

 

 

hexatic phase

28

 

 

 

Higgs bosons

201

 

 

 

high-temperature expansion

503–504

HMTTF-TCNQ

232

 

 

Holstein–Primako

 

 

 

transformation

530

 

and the Hamiltonian of interacting

magnons

534

 

 

application of

534, 546

 

homeopolar bond

89

 

 

homopolar bond

89

 

 

honeycomb lattice

113, 114

 

Hooke’s law

365, 368

 

 

Hubbard model

5

 

 

 

Hund’s rules

42

 

 

 

hybrid states

103–105, 233

 

hydrogen bond

106

 

 

hyperfine structure

69

 

icosahedral group

131

 

ideal crystal

14, 109

 

 

improper rotation

126

 

incoherent scattering

660

 

incommensurate structures

312

magnetic

see spiral structures

indirect

exchange

see

 

RKKY interaction

 

inelastic neutron scattering

see

neutron scattering, inelastic, 547

infrared absorption

431–433

infrared active mode

432

 

integrated density of states

399

interaction

 

 

 

 

 

electron–phonon

193

 

phonon–phonon

423–424

 

interfacial defects

274

 

international notation

see Hermann–

Mauguin symbols

 

interstitials

278–280

 

 

split

279

 

 

 

 

 

inversion

126

 

 

 

 

ionic bond 83

 

 

 

 

ionic–covalent bond

94

 

ionic crystals

83–89

 

 

optical vibrations in

373–377

ionic radius

236

 

 

 

irreducible representations

637

Ising model

472

 

 

 

 

and Mermin–Wagner theorem

551

two-dimensional

551

 

 

isomer shift

73

 

 

 

 

 

jj coupling

40

 

 

 

 

 

Jones symbol 130

 

 

 

 

Jordan–Wigner transformation

533

application of

572

 

 

 

Josephson constant

587

 

 

Josephson inequality

497, 499

 

junction transistor

4

 

 

 

kagome lattice

113, 114

 

 

Kerr e ect

513

 

 

 

 

 

kinematical interaction

536

 

Knight shift

72

 

 

 

 

 

Kondo e ect

5

 

 

 

 

 

Korringa law

71

 

 

 

 

Korringa relaxation

71

 

 

Kosterlitz–Thouless transition

see

Berezinskii–Kosterlitz–Thouless

transition

 

 

 

 

 

Kramers–Kronig relation

64

 

Kramers’ theorem

182

 

 

L1 structure

204, 207

 

 

L2 structure

204

 

 

 

 

L 3 structure

204

 

 

 

 

ladder operator

393

 

 

 

Lagrange’s equation

34, 359

 

Laguerre polynomials

624

 

Lamé constants

365

 

 

 

Landé g-factor

54

 

 

 

 

Landau–Peierls instability 28, 201

Landau theory of phase transitions

199, 489–492

 

 

 

 

Langevin diamagnetism

see Larmor

diamagnetism

 

 

 

 

Langevin function

57

 

 

Langevin susceptibility

53

 

lanthanoids

179, 218

 

 

 

Larmor diamagnetism

49

 

Larmor frequency

50

 

 

 

lattice parameters

229

 

 

lattice vibrations

 

 

 

 

classical description of

331–385

Einstein model

387–389

 

quantum description of

387–427

 

 

Subject Index

689

lattices that are not Bravais lattices

113, 114

 

 

 

Laue condition

194, 244, 245

 

Laue method

265

 

 

Laves phase

204, 223

 

 

layered structures 229–233

 

LCAO method

97

 

 

LEED 262

 

 

 

 

Legendre polynomials 625

 

Lennard-Jones potential

81

 

level splitting in crystals

173–182

 

Lie groups

643

 

 

Lieb–Schultz–Mattis theorem

578, 582

lifetime

 

 

 

 

 

 

 

of magnons

536, 548

 

 

 

of phonons

424

 

 

 

 

Lindemann criterion

413

 

 

line defects

274, 283–292

 

 

linear chain

 

 

 

 

 

 

 

diatomic

341–345

 

 

 

 

dimerized

345–348

 

 

 

monatomic

337–341

 

 

 

liquid crystals

24–29

 

 

 

liquid phase

22–23

 

 

 

 

localized excitations

 

 

 

 

lattice vibrations

377–383

 

long-range order

14

 

 

 

 

longitudinal vibrations

341

 

Lorentz formula

374

 

 

 

Lorentz–Lorenz equation

 

375

 

Lorentzian function

 

 

 

 

Fourier transform of

609

 

low-angle grain boundary

298

 

low-dimensional

magnetic

 

 

systems

548f

 

 

 

 

LS coupling

40

 

 

 

 

 

Lyddane–Sachs–Teller relation

377

M -center

282

 

 

 

 

 

Madelung constant

87

 

 

 

Madelung energy

84

 

 

 

magnetic force microscope

513

magnetic form factor

249

 

 

magnetic group

see

color group,

black-and-white

magnetic lattice see black-and-white lattice

magnetic space groups see space groups, black and white