Hot-carrier magnetophonon resonance in CdxHg1−xTe

Resistance oscillations and voltage-current characteristics have been examined for Cd_xHg_1–xTe crystals on both sides of the transition from the gap-free phase to the narrow-gap phase in strong electric fields (1相似文献   

Study of mechanical amorphization of mineral orpiment (As<Subscript>2</Subscript>S<Subscript>3</Subscript>) and arsenic and germanium selenide crystals by optical methods

Reversible photostructural transformations (darkening and clearing) accompanied by a shift of the edge transmission and a fatigue effect of luminescence have been found in deformed As₂S₃, GeSe₂, and As₂Se₃ single crystals and powders at T = 77 K. The experimental results are interpreted based on the configurational model of two stable states of molecular groups.     

Dielectric properties and specific heat of Bi<Subscript>1–<Emphasis Type="Italic">x</Emphasis> </Subscript>Sm<Subscript> <Emphasis Type="Italic">x</Emphasis> </Subscript>FeO<Subscript>3</Subscript> multiferroics

The specific heat and dielectric permittivity of Bi_1–xSm_xFeO₃ (x = 0–0.30) multiferroics have been studied in the temperature range of 300–800 K. A slight substitution of bismuth with samarium is established to cause a considerable shift in the antiferromagnetic phase transition temperature and to an increase in the specific heat over a wide temperature range. Other anomalies typical of phase transitions have been found in the temperature dependences of the specific heat and dielectric permittivity for the compounds with x = 0.10 and 0.15 at T ≈ 735 and 495 K, respectively. The results of the studies of the specific heat have been discussed together with the data of the structural investigations.     

Phase Pattern of Barium Strontium Titanate System and Dielectric Responses of Its Solid Solutions

Russian Physics Journal - Samples of solid solutions of the system Ba1–x Sr x TiO3 (0 ≤ x ≤1.0) are produced by solid-phase synthesis followed by sintering using conventional...     

Phase composition,microstructure, and thermophysical and dielectric properties of multiferroic Bi<Subscript>1−<Emphasis Type="Italic">x</Emphasis></Subscript>Dy<Subscript><Emphasis Type="Italic">x</Emphasis></Subscript>FeO<Subscript>3</Subscript>

An extensive study was performed to establish correlations between the crystal structure, the grain composition, and the dielectric and thermophysical properties of high-temperature multiferroics of the Bi_1?x Dy_x FeO₃ type (x = = 0.05–0.20). It is shown that a trade-off between the macroresponses in the materials is achieved at x = 0.10; this circumstance permits recommendation of the materials for practical use.     

Heat capacity of multiferroics Bi1–x Pr x FeO3

Physics of the Solid State - The heat capacity of multiferroics Bi1–x Pr x FeO3 (0 ≤ x ≤ 0.20) has been studied in the temperature range 130–800 K. An insignificant...     

Thermal Physical and Dielectric Properties of Bi1 – xErxFeO3

The heat capacity and the permittivity of multiferroics Bi_{1 – x}Er_xFeO₃ (x = 0, 0.10, and 0.15) have been studied in the temperature range 130–800 K. It is found that an insignificant substitution of erbium for bismuth significantly increases the heat capacity in a wide temperature range T > 300 K. The temperature dependence of the excess heat capacity is shown to be due to manifestation of the three-level states. An additional anomaly characteristic of a phase transition has been revealed in the temperature dependences of the heat capacity and the permittivity for the compositions with x = 0.15 at T = 587 K. The results of studies are discussed in combination of the data of structural studies.