On the Possibility of Establishing Equilibrium in the "Phonons-Low-Energy Excitations" System during Time-Dependent Propagation of a Thermal Pulse in Solid Insulators at Helium Temperatures

被引：2

作者：

Salamatov, E., I ^{[1
]}

Taranov, A., V ^{[2
]}

Khazanov, E. N. ^{[2
]}

机构：

[1] Russian Acad Sci, Physicotech Inst, Ural Branch, Izhevsk 426000, Russia

[2] Russian Acad Sci, Kotelnikov Inst Radio Engn & Elect, Moscow 125009, Russia

来源：

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS | 2021年 / 133卷 / 03期

关键词：

HEAT-CAPACITY; SCATTERING; TRANSPORT; CRYSTALS; GARNETS;

D O I：

10.1134/S1063776121090053

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The transport characteristics of thermal-frequency phonons and specific heat C(T) in single-crystal solid solutions of aluminum-rare-earth garnets have been experimentally investigated in the helium-temperature range in the presence of low-energy paramagnetic excitations. It is shown that, under conditions of time-dependent propagation of a thermal pulse, equilibrium may occur in the "nonequilibrium phonons-two-level systems" system at certain values of sample length and thermostat temperature.

引用

页码：340 / 346

页数：7

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