ELECTRON AND PHONON CHARACTERISTICS OF YBA2CU3O7-DELTA

被引：15

作者：

BESSERGENEV, VG ^{[1
]}

KOVALEVSKAYA, YA ^{[1
]}

NAUMOV, VN ^{[1
]}

FROLOVA, GI ^{[1
]}

机构：

[1] RUSSIAN ACAD SCI,INST INORGAN CHEM,NOVOSIBIRSK 630090,RUSSIA

来源：

PHYSICA C | 1995年 / 245卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(95)00096-8

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

In this work the experimental results of heat capacity are presented for superconducting yttrium ceramics YBa2Cu3O7-delta in the temperature interval 5-300 K. The electron component gamma T was separated in the normal state (above T-c). For this purpose, the special technique of data processing had been used which allowed one to extract both the electron component of heat capacity gamma T and the moments of phonon density of states Theta(2), Theta(4) and some effective moment Theta attributed to the phonon spectrum boundary.

引用

页码：36 / 40

页数：5

共 10 条

[1]

AMITIN EB, 1984, FIZ TVERD TELA+, V26, P1044

[2]

AMITIN EB, 1989, SVERCHPROVODIMOSTFCH, V2, P157

[3] HEAT-CAPACITY AND RELATED THERMODYNAMIC FUNCTIONS OF BA2YCU3O7-Y [J].

ATAKE, T ;

HONDA, A ;

KAWAJI, H .

PHYSICA C, 1991, 190 (1-2) :70-72

[4]

Fischer H. E., 1988, Comments on Condensed Matter Physics, V14, P65

[5]

JUNOD A, 1990, PHYSICAL PROPERTIES, V2

[6] THE ELECTRONIC SPECIFIC-HEAT OF YBA2 (CU1-XZNX)3O7 FROM 1.6-K TO 300-K [J].

LORAM, JW ;

MIRZA, KA ;

FREEMAN, PF .

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 1990, 171 (3-4) :243-256

[7] ELECTRONIC SPECIFIC-HEAT OF YBA2CU3O6+X FROM 1.8 TO 300-K [J].

LORAM, JW ;

MIRZA, KA ;

COOPER, JR ;

LIANG, WY .

PHYSICAL REVIEW LETTERS, 1993, 71 (11) :1740-1743

[8] ELECTRON HEAT-CAPACITY AND MOMENTS OF THE PHONON DENSITY-OF-STATES FOR METALS AND SUPERCONDUCTORS [J].

NAUMOV, VN .

PHYSICAL REVIEW B, 1994, 49 (18) :13247-13250

[9]

PHILLIPS NE, 1992, PROGR LOW TEMPERATUR, V13, P267

[10] THE HEAT-CAPACITY AND DERIVED THERMOPHYSICAL PROPERTIES OF THE HIGH-TC SUPERCONDUCTOR YBA2CU3O7-DELTA FROM 5.3 TO 350-K [J].

SHAVIV, R ;

WESTRUM, EF ;

BROWN, RJC ;

SAYER, M ;

YU, X ;

WEIR, RD .

JOURNAL OF CHEMICAL PHYSICS, 1990, 92 (11) :6794-6799

← 1 →