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690 Subject Index

magnetic structures 453–462 magnetism

antiferro- 453–459 atomic 51

ferri461, 462 ferro- 450–453, 470

magnetization see also sublattice magnetization

definition of 48

temperature dependence of see Bloch T 3/2 law

magnetomechanical ratio see gyromagnetic ratio

magnon energy temperature-dependent corrections

to

535

 

 

 

 

magnons

 

 

 

 

 

antiferromagnetic

540–547

approximate bosonic character of

521, 525

 

 

 

 

as magnetic counterparts of phonons

521

 

 

 

 

 

bound states of

536–540, 565–566

cuto for 527, 545

 

ferrimagnetic

 

546–547

 

ferromagnetic

521

 

interaction of

 

533–536

 

Hamiltonian for

534

 

thermodynamics of

527–530

Majumdar–Ghosh point

577

mass susceptibility

see

 

susceptibility, mass

 

MBBA

24

 

 

 

 

mean free path

 

 

 

 

of phonons

427

 

 

mean-field theory

 

 

 

of antiferromagnetism

478–484

of ferrimagnetism

487–488

of ferromagnetism

474–478

melting point of elements

596

Mermin–Wagner theorem

411, 550

mesogen

24

 

 

 

 

mesomorphic phases

13, 23–24

mesoscopic systems

7

 

metallic bond

106

 

 

metallic glass

21, 303

 

Mg structure see hexagonal crystal

structures, close-packed

Miller indices

119

 

 

Miller–Bravais indices

119

mirror line

124

 

 

mirror plane

124

 

 

misorientation angle

298

mixed dislocation

285, 286

MoAl12 structure

214

modulus of elasticity

see Young’s

modulus

 

 

modulus of rigidity

see shear modulus

molar susceptibility see susceptibility,

molar

 

molecular crystals

78–83

molecular-orbital method 96

monatomic chain

see linear chain,

monatomic

 

mosaic structure

298

Mössbauer e ect

72

motif 114

 

N-process see normal process

NaCl structure see sodium chloride,

structure

 

 

nanostructures

7

 

Néel state

 

540

 

Néel temperature

454, 481

Néel wall

 

509

 

 

nematic phase

25, 26

biaxial

 

26

 

 

calamitic

25

 

chiral

26

 

 

cholesteric

26

 

discotic

 

25, 26

 

Neumann functions

620

Neumann’s principle 171

neutron scattering

 

cross section of

see Van Hove

formula

 

 

elastic

241

 

 

inelastic

242, 438–447

magnetic

660–664

NiAs structure

227, 228

NMR see nuclear magnetic resonance

noble gases

77, 218

 

 

noble metals

218

 

 

Noether’s theorem

191

 

noncrystalline solids

21–22

 

nonsymmorphic plane groups

163

nonsymmorphic space groups

166

normal coordinates

357

 

normal modes

359

normal process

193

nuclear magnetic resonance 71

octahedral group

130

octahedral sites

213, 218

optical branch

343

optical vibrations

343, 361–363

in ionic crystals

373–377

order

 

 

center-of-mass 19

long-range

14

 

absence of in finite temperature XY

model 555

 

absence of in low-dimensional finite temperature Heisenberg model 550

magnetic

450–462

 

orientational

19

 

 

short-range 14

 

 

order–disorder transitions

489

orientational order

19

 

oscillator

392–393

 

 

overlap integral

92

 

 

PAA 24

 

 

 

 

packing fraction

 

 

 

definition of

208

 

 

for ccp crystal

217

 

for diamond structure

222

for hcp crystal

226

 

for sc crystal

208

 

pair-correlation function

17

para-azoxy anisole

24

 

parallel susceptibility 484

paramagnetic resonance

61

fine structure

68

 

 

paramagnetic space groups see space

groups, gray

 

 

paramagnetism

51

 

 

atomic 51

 

 

 

Van Vleck 60

 

 

partial dislocations

294–298

partial structure factor

307

particle–hole excitations

 

in the XY model

574–575

Pauli exclusion principle

36, 464

Pauli matrices

646, 674

 

Pauling ionic radius

236

 

 

 

 

Subject Index

691

Pearson symbol

205

 

 

 

Penrose tiling

323–326

 

 

 

periodic boundary condition

 

see

boundary conditions,

 

Born–von Kármán

 

 

 

periodic table

593

 

 

 

 

perovskite structure

204, 209

 

perpendicular susceptibility

484

 

phonon–phonon interaction

423–424

phonons

395

 

 

 

 

 

 

acoustic

397

 

 

 

 

 

density of states of

398–409

 

experimental study of

429–447

 

interaction among

see phonon–

 

phonon interaction

 

 

 

lifetime of

446

 

 

 

 

specific heat of

413–418

 

 

physical constants 587–588

 

planar defects

274, 293–301

 

planar model

see XY model

 

planar regime

566

 

 

 

 

plane groups

162

 

 

 

 

plastic crystals

29–30

 

 

 

point defects

274–283

 

 

 

point group of the crystal

161

 

point groups

127–135

 

 

 

point-contact transistor

4

 

 

Poisson’s ratio

369

 

 

 

 

polar covalent bond

94

 

 

 

polarization vector

357

 

 

 

polycrystals 21, 293

 

 

 

 

polymers

 

30

 

 

 

 

 

 

powder method

267

 

 

 

primitive cell

115

 

 

 

 

primitive vectors

110

 

 

 

choice of

111–113

 

 

 

pyrite structure

204

 

 

 

quantum critical point

500

 

quantum Hall e ect

6

 

 

 

quantum phase transitions

500

 

quasicrystals

3, 21, 315–330

 

quasimomentum

191

 

 

 

quasiperiodic functions

311

 

quasiperiodic structures

309–330

 

quasiperiodic tiling

see Penrose tiling

R-center

 

282

 

 

 

 

 

 

radial distribution function

17, 305

 

692

Subject Index

 

 

in amorphous silicon 306

Ruderman–Kittel oscillation

465

in quasicrystals

316

Rushbrook inequality 497

 

Raman active mode

435

Russell–Saunders coupling

40

Raman scattering

433–436

rutile structure 204

 

rapidity

563

 

RVB see spin liquid, resonating

rare-earth garnet

547

 

valence bond

 

 

rare-earth metals

452

 

Rydberg energy

588

 

Rashba term

38

 

 

satellite peaks

 

314, 459

reciprocal lattice

120–124

 

definition

120

 

 

saturated bond

99

 

of bcc lattice

212

 

scaling laws

496–500

of fcc lattice

216

 

scanning tunneling microscope 270

of hexagonal lattice

225

scattering length

247, 440

primitive vectors of

122

scattering vector

548

reduction

638

 

 

 

Schoenflies symbols

125

relativistic e ects

36–38

Schottky defect

280–282

relaxation function

63

 

Schwinger boson

532

relaxation time

 

 

 

screw axis 158

 

 

 

spin–lattice

64

 

 

screw dislocation

285

spin–spin

65

 

 

screw rotation

 

158

 

renormalization

501

 

sd interaction

465

 

renormalization-group transformation

Seitz symbol

157

 

 

500–502

 

 

 

 

selection rules

 

184, 650

resonance absorption 61, 72

separation energy

77

resonance fluorescence

72

shear modulus

365, 369

resonance integral

98

 

shift operator

 

see ladder operator

resonating

valence bond spin

Shockley partial dislocation 295

liquid

 

585

 

 

short-range order

14, 305–309

Riemann zeta function

617

Shubnikov groups

167

RKKY interaction

466

simple cubic crystals

205–210

rock-salt structure

see

sodium

single crystal

20

 

 

chloride, structure

 

skutterudite structure

204

Rodrigues’ formula

 

 

Slater determinant

101

for generalized Laguerre

smectic phases

27–28

polynomials

625

 

sodium chloride

 

 

 

for Hermite polynomials

623

Madelung energy of

86

for Laguerre polynomials

624

structure

204, 219, 238

rotating-crystal method

265

solid solutions 21

 

rotation axis

125

 

 

 

space groups

162

 

 

rotation group

642, 665

 

black-and-white 168

rotation–inversion

see

symmetry

gray 168

 

 

 

operations, rotation–inversion

in two dimensions

see plane groups

rotation–reflection

see

symmetry

magnetic

166

 

 

operations, rotation–reflection

specific heat

 

 

 

rotational symmetry 125

 

of classical crystals

383–385

rotoinversion

see

symmetry opera-

of magnon gas

529

 

tions, rotation–inversion

of phonon gas

413–418

rotoreflection

see

symmetry opera-

specific susceptibility

see susceptibil-

tions, rotation–reflection

ity, specific

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Subject Index

693

spectrum

 

 

 

 

 

 

sti ness constant

 

 

 

 

 

 

in chain of S = 1/2 spins

539

of spin waves

524

 

 

 

 

in the XY model

575

 

Stirling formula

 

619

 

 

 

 

sphalerite structure

204, 221–224

STM see

scanning tunneling

 

spherical Bessel functions

621

microscope

 

 

 

 

 

 

spherical Hankel functions

622

Stokes component

434

 

 

 

spherical harmonics

627

 

strain tensor

364

 

 

 

 

spherical Neumann functions 622

stress tensor

365

 

 

 

 

spin

 

 

 

 

 

 

structure amplitude

248

 

 

classical

 

 

 

 

 

structure factor

 

18, 248

 

 

 

precession of

516

 

 

dynamical

see dynamical structure

classical equation of motion in

factor

 

 

 

 

 

 

 

 

magnetic field

516

 

in amorphous silicon

306

 

 

quantum mechanical equation of

partial

 

307

 

 

 

 

 

 

 

motion

516

 

 

 

Strukturbericht designation

205

 

spin-flop phase

484

 

 

sublattice magnetization

see

also

 

spin-flop transition

484, 546

magnetization

 

 

 

 

spin glass

449

 

 

 

 

temperature dependence of

545

 

spin ladders

581–583

 

 

substitutional impurity

274

 

 

spin–lattice relaxation

64

 

superconductivity

2

 

 

 

 

spin liquid

551, 574 584–586

superexchange

466–468

 

 

 

algebraic

584

 

 

 

susceptibility

 

 

 

 

 

 

 

resonating valence bond

585

Curie

53

 

 

 

 

 

 

 

spin operators

665

 

 

definition of

48

 

 

 

 

representation in terms of boson

Langevin

53

 

 

 

 

 

 

operators

530–533, 541

mass

49

 

 

 

 

 

 

 

representation in terms of fermion

molar

49

 

 

 

 

 

 

 

operators

533

 

 

of antiferromagnets

482–484

 

spin–orbit interaction

38

 

of ferromagnets

see Curie–Weiss

spin waves

 

 

 

 

 

law

 

 

 

 

 

 

 

 

 

antiferromagnetic

540–547

divergent spin-wave contribution

classical

516–520

 

 

to

530

 

 

 

 

 

 

 

antiferromagnetic

518–520

specific

 

49

 

 

 

 

 

 

 

ferromagnetic

516–518

 

Van Vleck

60

 

 

 

 

 

 

illustration of

518, 520

 

volume

 

49

 

 

 

 

 

 

 

definition of

517

 

 

symmetry breaking

199

 

 

 

ferromagnetic

521

 

 

symmetry elements

 

 

 

 

quantum mechanical description of

glide line

158

 

 

 

 

 

 

521–540

 

 

 

 

glide plane

158

 

 

 

 

spinel structure

204, 223

 

inversion center

126

 

 

 

spinons

570

 

 

 

 

mirror line

124

 

 

 

 

dispersion relation of

see dispersion

mirror plane

 

124, 125

 

 

 

relation, of spinons

 

rotation axis

125

 

 

 

 

spiral structures

459–461

 

rotation–inversion axis

126

 

split interstitial

279

 

 

rotation–reflection axis

126

 

stacking faults

293–294

 

screw axis

158

 

 

 

 

staggered susceptibility

482

symmetry operations

 

 

 

 

step function see

Heaviside

glide reflection

 

158

 

 

 

step function

 

 

 

inversion

126

 

 

 

 

 

 

694 Subject Index

reflection 125 rotation–inversion 126 rotation–reflection 126 screw rotation 158

symmorphic plane groups 163 symmorphic space groups 164 synchrotron radiation 241 syngony see crystal systems

Taylor–Orowan dislocation see edge dislocation

TBBA 24

tensile modulus see Young’s modulus terephtal-bis-butyl-aniline 24

tetrahedral group

 

130

 

tetrahedral sites

213, 218

 

thermal conductivity

 

 

by phonons

427

 

 

thermal expansion

425–427

 

tilt grain boundary

298

 

time reversal

196

 

 

 

top-hat function

 

 

 

 

Fourier transform of

608

 

topological quantum number

554

torsional waves

366

 

 

transistor

 

 

 

 

 

 

junction

4

 

 

 

 

 

point-contact

4

 

 

 

transition metals

 

213, 218

 

translational symmetry

110

 

transverse vibrations

341

 

triple-axis spectrometer 439, 445

TTF-TCNQ

76

 

 

 

 

twin crystals

299, 301

 

 

twist grain boundary

298

 

twisted boundary conditions

 

see boundary conditions,

 

antiperiodic

 

 

 

 

two-phonon Raman scattering

436

umklapp process

193, 424, 427

uniaxial anisotropy

472

 

unsaturated bond

99

 

 

vacancies

275–278

 

 

formation energies of

276

 

vacancy pair

280

 

 

 

valence-bond method

90

 

valence-bond-solid state

580

van der Waals bond

79–81

 

van der Waals interaction

78

Van Hove formula

440, 656

Van Hove singularities

405–409

Van Vleck paramagnetism

60

Van Vleck susceptibility

60

vector operator

 

 

 

 

 

definition of

53

 

 

 

 

Voigt elastic constants

368

Volterra construction

284

 

volume defects

274, 302

 

volume susceptibility

see susceptibil-

ity, volume

 

 

 

 

von Klitzing constant

587

 

Voronoi polyhedron

117

 

vortices

553–559

 

 

 

 

W structure

213

 

 

 

 

wallpaper groups

see plane groups

Weiss field

474

 

 

 

 

Weiss indices

119

 

 

 

 

Wigner–Eckart theorem

53

Wigner–Seitz cell

117

 

 

Wigner–Seitz sphere

116

 

Wigner’s theorem

173

 

 

wurtzite

structure

 

 

 

 

204, 228

 

 

 

 

 

X-ray di raction

 

 

 

 

experimental methods of

261–268

theory of

242–260

 

 

 

XY model

472, 551, 572

 

entropy of vortices in

see entropy,

of vortices in XY model

free energy of vortices in

see

free energy, of vortices in

XY model

 

 

 

 

Hamiltonian of

551

 

 

phase transition in

see Berezinskii–

Kosterlitz–Thouless transition

YIG see yttrium–iron garnet

Young’s modulus

369

 

 

yttrium–iron garnet

547

 

Yukawa function

 

 

 

 

Fourier transform of

609

 

Subject Index

695

zero-point energy 392, 543

zero-point vibrations

89, 392

 

zero-point spin contraction

zeta function 617

 

 

in antiferromagnetic ground

zincblende structure

see

 

state 544

sphalerite structure

in two-dimensional antiferro-

magnets

551

Fundamental physical constants

Name

Symbol

 

 

 

Value

 

 

 

 

 

 

 

 

 

Bohr magneton

 

 

 

 

 

 

m

 

9.274 009 × 10

24

 

 

 

1

 

μB = e

 

/2

2 e

2

 

10

 

J T

 

 

Bohr radius

a0 = 4π 0 /mee

 

0.529 177 × 10

 

 

m

 

 

Boltzmann constant

kB

 

 

 

 

 

 

1.380 650 × 1023 J K1

 

Conductance quantum

G0 = 2e2/h

 

7.748 092 × 105 S

 

 

 

 

Electron g-factor

ge = 2μe B

 

2.002 319

 

 

 

 

 

 

 

 

Electron gyromagnetic ratio

γe = 2e|/

 

1.760 860 × 1011 s1 T1

 

 

γe/2π

 

 

 

 

28 024.9540 MHz T1

 

 

Electron magnetic moment

μe

 

 

 

 

 

 

9.284 764 × 1024 J T1

Electron mass

me

 

 

 

 

 

 

1.001 160 μB

31

 

 

 

 

 

 

 

 

 

 

2

 

9.109 382 × 10

 

12 kg

1

 

Electric constant

0 = 10 c

 

8.854 188 × 10

 

 

F m

 

 

Elementary charge

e

 

 

 

 

 

 

 

1.602 176 × 1019 C

 

 

 

Hartree energy

Eh = e2/4π 0a0

 

4.359 744 × 1018 J

 

 

 

in eV

 

 

 

 

 

 

 

 

27.211 383 eV

 

 

 

 

 

 

 

 

Josephson constant

KJ = 2e/h

 

483 597.9 × 109 Hz V1

 

 

Magnetic constant

 

 

 

 

 

 

 

 

7

 

2

 

 

 

 

 

 

μ0

 

 

 

 

 

 

4π × 10

N A

15

 

Wb

 

 

Magnetic flux quantum

Φ0 = h/2e

 

 

2.067 834 × 10

 

 

 

 

Nuclear magneton

μN = e /2mp

 

5.050 783 × 1027 J T1

 

Neutron mass

mn

 

 

 

 

 

1.674 927 × 10

27 kg

 

 

 

 

 

 

 

 

 

26

 

 

1

Neutron magnetic moment

μn

 

 

 

 

 

 

0.966 236 × 10

 

 

 

J T

 

Neutron g-factor

 

 

 

 

 

 

 

 

1.913 043 μN

 

 

 

 

 

 

 

 

gn = 2μnN

 

3.826 085

 

34

 

J s

 

 

Planck constant

h

 

 

 

 

 

 

6.626 069 × 1015

 

 

 

in eV

h/{e}

 

 

 

 

4.135 667 × 10

 

 

eV s

 

 

Proton g-factor

gp = 2μpN

 

5.585 695

 

8 1 T1

 

Proton gyromagnetic ratio

γp

= 2μ /

 

2.675 222 × 10

 

 

 

p

 

 

 

s

 

 

1

 

 

 

γp/2π

 

 

 

 

42.577 482 MHz T

 

 

 

 

Proton magnetic moment

μp

 

 

 

 

 

 

1.410 607 × 1026 J T1

 

 

 

 

 

 

 

 

 

 

2.792 847 μN

 

 

 

 

 

 

 

 

Proton mass

mp

 

 

 

 

 

1.672 622 × 1027 kg

 

 

Reduced Planck constant

= h/2π

 

 

1.054 572 × 1034 J s

 

 

in eV

 

/{e}

 

 

 

 

6.582 119 × 10

16 eV s

 

 

 

 

2

 

 

 

 

 

1

 

 

 

 

Rydberg constant

R

 

= α mec/2h

 

10 973 731.569 m

 

 

 

 

 

Rydberg energy

 

 

 

 

 

2.179 872 × 1018 J

 

 

 

Ry = Rhc

 

 

 

 

in eV

 

 

 

 

 

 

 

 

13.605 692 eV

 

 

 

 

 

 

 

 

Speed of light

c

 

 

 

 

 

 

 

299 792 458 m s1

 

 

 

 

 

 

Von Klitzing constant

RK = h/e2

 

25 812.807 572 Ω