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Wurger A. — From coherent tunneling to relaxation
Wurger A. — From coherent tunneling to relaxation

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Название: From coherent tunneling to relaxation

Автор: Wurger A.


From Coherent Tunneling to Relaxation is an impressive review of ten years of progress in our understanding of interacting tunneling systems. The dielectric and elastic response of (111) off-center impurities in alkalide halides is investigated in detail and the coherent motion of an impurity pair is discussed in view of recently observed rotary echoes. The low-temperature properties of defect crystals with an impurity concentration higher than 100 ppm are reviewed and the dipolar interaction is shown to drive the cross-over to relaxational dynamics. This comprehensive presentation of the theory is illustrated by experimental data for lithium, cyanide, and hydroxyl impurities in various host crystals. This monograph is an ideal reference book for scientists working with defect crystals and glasses

Язык: en

Рубрика: Физика/

Статус предметного указателя: Готов указатель с номерами страниц

ed2k: ed2k stats

Год издания: 1997

Количество страниц: 219

Добавлена в каталог: 17.11.2013

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Предметный указатель
Activated relaxation of interacting defects      100
Activated relaxation of tunneling systems in glasses      136 149 150
Asymmetry energy for a defect pair      32 47
Asymmetry energy of two-level systems in glasses      121
Asymmetry energy, effect on rotary echoes      42
Average relaxation amplitude      72 97
Break-down of two-level description      135 149
Correlation spectrum      186
Correlation spectrum for interacting defects      80
Correlation spectrum for the spin-boson model      128 134
Coupling to elastic waves of substitutional defects      18
Coupling to elastic waves of tunneling systems in glasses      124
Cross-over to relaxation of tunneling in glasses      150
Cross-over to relaxation, driven by interaction      109
Cross-over to relaxation, driven by temperature, modecoupling theory      129
Cross-over to relaxation, driven by temperature, small-polaron approach      179
Damping of lithium tunneling      18
Damping through sound waves of substitutional defects      18
Damping through sound waves of TLS in glasses      128
Damping, due to dipolar interaction      81
Debye — Waller factor      161 180
Decoupling of memory functions      185
Decoupling of memory functions for interacting defects      78
Decoupling of memory functions for the spin-boson model      132
Degenerate states in glasses      119
Degenerate states of substitutional defects      10
Density of states of interacting defects      110
Density of states of interacting impurities      84
Density of states of the pair model      57
Dielectric susceptibility for the pair model      64
Dielectric susceptibility of a two-state system      52
Dielectric susceptibility of interacting impurities      72 92 96
Dielectric susceptibility of non-interacting impurities      15
Dielectric susceptibility of two coupled impurities      35 37 38
Dielectric susceptibility, classical limit      112
Dipolar interaction of two impurities      28
Dipolar interaction of two-state systems      53
Dipole moment of a single impurity      14
Dipole moment of a two-state system      52
Elastic quadrupole moment      16
Elastic response function in glasses      137
Elastic response function of a lithium impurity      22
Energy eigenstates of a single impurity      12
Energy eigenstates of two coupled impurities      34
Energy spectrum of the pair model      55
Energy spectrum of two-level systems in glasses      121
Equation of motion for a two-level system      125 156
Equation of motion for interacting two-level systems      69
Fermi’s Golden Rule      18
Fluctuation operators      126
Fluctuation-dissipation theorem      186
Fourier transformation      185
Ground-state splitting of a single impurity      12
Ground-state splitting of two coupled impurities      34 38 39
Internal energy of two coupled impurities      35
Internal friction in glasses      137
Internal friction in oxide glasses      143
Internal friction of polystyrene      148
Internal friction relaxational contribution      139
Internal friction, resonant contribution      138
Internal friction, thermally activated relaxation      140
Isotope effect for relaxation amplitude      100
Isotope effect for relaxation rate      99 105
Isotope effect on resonant absorption      94
Isotope effect on rotary echoes      44 48
Kanzani forces      16
Kramers — Kronig relation      185
Laplace transformation      185
Lattice distortion      16
Memory function for interacting defects      78
Memory function for the spin-boson model      127 130
Mode-coupling equations for interacting impurities      106
Mode-coupling equations for the spin-boson model      132
Ohmic damping      123
Oxide glasses, sound propagation      143
Perturbation series for the damping rate      163
Perturbation theory, Rayleigh — Schroedinger      29 46
Polaron transformation      154
Polycrystalline metals, sound propagation      146
Polymers, sound propagation      148
Rabi frequency      41
Relaxation amplitude for interacting defects      96
Relaxation of TLS in glasses      134 149
Relaxation peak for interacting defects      101
Relaxation peak for tunneling in glasses      141
Relaxation, comparison with spin glasses      106
Relevant operators      107
Resolvent identity      70
Saddle-point integration      166
Schottky anomaly      13 88
Selection rules, dielectric      14
Selection rules, elastic      17
Self-consistent equation for relaxation amplitude      201
Self-consistent equation for the damping rate      133
Soft-potential model      136
Sound velocity in amorphous solids      137
Sound velocity in oxide glasses      145
Sound velocity in polycrystalline metals      147
Sound velocity of doped alkali halides      22
Sound velocity, relaxational contribution      139
Sound velocity, resonant contribution      138
Sound velocity, thermally activated relaxation      141
Specific heat for the pair model      58
Specific heat of a single impurity      13
Specific heat of glasses      119
Specific heat of interacting impurities      87
Spin operators for a lithium impurity      51
Spin operators for TLS, energy eigenstates      126
Spin operators for TLS, localized states      120
Spin-boson model      123 153
Statistical operator for the pair model      56
Statistical operator of a two-level system in glasses      121
Substitutional defect, cyanide      14
Substitutional defect, lithium      9
Thermal conductivity of doped alkali halides      25
Thermal conductivity of glasses      116
Tunneling amplitude of a single impurity      10
Two-state approximation for a defect pair      40 46 54
Two-state approximation for a lithium impurity      51
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