PHONONS IN DISORDERED ANHARMONIC SOLIDS

被引：6
作者：
MOLINA, MI
MATTIS, DC
机构：
[1] Department of Physics, University of Utah, Salt Lake City
来源：
PHYSICS LETTERS A | 1991年 / 159卷 / 6-7期
关键词：
D O I：
10.1016/0375-9601(91)90443-C
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
A model of glass constructed entirely with phonons is introduced and solved in closed form, It yields c(p)(T) approximately T at low temperatures in the glassy phase. The fit to typical glasses, requiring just a single adjustable parameter, is excellent. The model includes random scattering of normal modes and quartic anharmonicity (the latter required for stability), but no two-level states.
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收藏
页码：337 / 342
页数：6
相关论文
共 16 条
[1]  
ANDERSON PW, 1972, PHILOS MAG, V25, P1468
[2]  
[Anonymous], 1960, SOV PHYS USPEKHI, DOI DOI 10.1070/PU1960V003N03ABEH003275
[3]  
Ashcroft N. W., 1976, SOLID STATE PHYS, P494
[4]   SATURATION OF ULTRASONIC-ABSORPTION IN VITREOUS SILICA AT LOW-TEMPERATURES [J].
HUNKLINGER, S ;
DRANSFELD, K ;
STEIN, S ;
ARNOLD, W ;
NAVA, R .
PHYSICS LETTERS A, 1972, A 42 (03) :253-+
[5]   ANOMALOUS ULTRASONIC ATTENUATION IN VITREOUS SILICA AT LOW-TEMPERATURES [J].
HUNKLINGER, S ;
ARNOLD, W ;
STEIN, S .
PHYSICS LETTERS A, 1973, A 45 (04) :311-312
[6]   SPECIFIC-HEAT OF AMORPHOUS BISMUTH AND GALLIUM BELOW 1-K [J].
KAMPF, G ;
SELISKY, H ;
BUCKEL, W .
PHYSICA B & C, 1981, 108 (1-3) :1263-1264
[7]   EIGENVALUES OF A RANDOM HAMILTONIAN BY TRI-DIAGONALIZATION [J].
MATTIS, DC ;
RAGHAVAN, R .
PHYSICS LETTERS A, 1980, 75 (04) :313-315
[8]   PHONONS IN DISORDERED SOLIDS [J].
MATTIS, DC .
PHYSICS LETTERS A, 1986, 117 (06) :297-301
[9]   PHONONS IN DISORDERED SOLIDS .2. THERMODYNAMIC PROPERTIES [J].
MATTIS, DC .
PHYSICS LETTERS A, 1987, 120 (07) :349-352
[10]   Tunneling States in Amorphous Solids [J].
Phillips, W. A. .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1972, 7 (3-4) :351-360
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