Heat capacity of the PbFe0.5Nb0.5O3 multiferroic

被引：0

作者：

Mitarov, R. G. ^{[1
]}

Kallaev, S. N. ^{[2
,3
]}

Omarov, Z. M. ^{[2
]}

Abdulvakhidov, K. G. ^{[4
]}

机构：

[1] Dagestan State Tech Univ, Makhachkala 367015, Dagestan, Russia

[2] Russian Acad Sci, Dagestan Sci Ctr, Dagestan Inst Phys Amirkhanov, Makhachkala 367003, Dagestan, Russia

[3] Dagestan State Univ, Makhachkala 367000, Dagestan, Russia

[4] Southern Fed Univ, Inst Phys Res, Rostov Na Donu 344090, Russia

来源：

PHYSICS OF THE SOLID STATE | 2015年 / 57卷 / 04期

基金：

俄罗斯基础研究基金会;

关键词：

Heat Capacity; Heat Capacity Measurement; Ferroelectric Phase Transition; Excess Heat Capacity; Tempera Ture Range;

D O I：

10.1134/S1063783415040174

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

The temperature dependence of the heat capacity of the PbFe0.5Nb0.5O3 multiferroic has been studied in the temperature range of 130-780 K. An excess heat capacity has been observed in the temperature range of 250-780 K. It has been shown that the temperature dependence of the excess heat capacity is associated with the manifestation of the Schottky effect in three-level systems.

引用

页码：728 / 730

页数：3

共 8 条

[1] Acoustic emission and thermal expansion of PbFe0.5Nb0.5O3 crystals near phase transitions [J].

Dulkin, EA ;

Raevskii, IP ;

Emelyanov, SM .

PHYSICS OF THE SOLID STATE, 1997, 39 (02) :316-317

[2]

Fesenko E.G., 1972, Perovskite Family and Ferroelectricity

[3] Heat Capacity of BiFeO3-Based Multiferroics [J].

Kallaev, S. N. ;

Mitarov, R. G. ;

Omarov, Z. M. ;

Gadzhiev, G. G. ;

Reznichenko, L. A. .

JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS, 2014, 118 (02) :279-283

[4] Structure and Electrophysical Properties of a Lead Iron Niobate-Based Amorphous Material [J].

Korotkov, L. N. ;

Kozhukhar, S. N. ;

Posmet'ev, V. V. ;

Urazov, D. V. ;

Rogovoi, D. F. ;

Barmin, Yu. V. ;

Kubrin, S. P. ;

Raevskaya, S. I. ;

Raevskii, I. P. .

TECHNICAL PHYSICS, 2009, 54 (08) :1147-1155

[5]

Mardasova I. V., 2004, THESIS ROSTOV STATE

[6] SCHOTTKY EFFECT IN PR3TE4-PR2TE3 SYSTEM [J].

MITAROV, RG ;

TIKHONOV, VV ;

VASILEV, LN ;

GOLUBKOV, AV ;

SMIRNOV, IA .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1975, 30 (02) :457-467

[7] Nanostructured multiferroic PbFe0.5Nb0.5O3 and its physical properties [J].

Ubushaeva, E. N. ;

Abdulvakhidov, K. G. ;

Mardasova, I. V. ;

Abdulvakhidov, B. K. ;

Vitchenko, M. A. ;

Amirov, A. A. ;

Batdalov, A. B. ;

Gamzatov, A. G. .

TECHNICAL PHYSICS, 2010, 55 (11) :1596-1599

[8]

Venevtsev Yu. N., 1982, FERROELECTRICS

← 1 →