MAGNETIC LOW-TEMPERATURE SPECIFIC-HEAT OF YBA2CU3O7-DELTA DUE TO LOCALIZED CHARGE-CARRIERS

被引：14

作者：

SCHREINER, T ^{[1
]}

AHRENS, R ^{[1
]}

WOLF, T ^{[1
]}

SCHMIDT, H ^{[1
]}

RIETSCHEL, H ^{[1
]}

机构：

[1] INST TECH PHYS, W-7500 KARLSHRUHE, GERMANY

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1992年 / 204卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90586-2

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The specific heat of an YBa2Cu3O7-delta single crystal has been measured in the temperature range from 38 mK to 40 K in different magnetic fields. A significant specific heat contribution remains after subtracting lattice and nuclear terms. This additional contribution could be observed between 38 mK and 15 K and has been investigated in detail. Similarilties to other substances, especially Si:P, are pointed out. Charge carriers localized by disorder and correlation effects are suggested as a possible cause of this contribution.

引用

收藏

页码：161 / 170

页数：10

相关论文

共 58 条

[31] ORIGIN OF THE RESIDUAL LINEAR SPECIFIC-HEAT TERM IN YBA2CU3O7-X [J].

KUENTZLER, R ;

DOSSMANN, Y ;

VILMINOT, S ;

ELHADIGUI, S .

SOLID STATE COMMUNICATIONS, 1988, 65 (12) :1529-1530

[32] LOCALIZED VERSUS ITINERANT ELECTRONS AT THE METAL-INSULATOR-TRANSITION IN SI-P [J].

LAKNER, M ;

VONLOHNEYSEN, H .

PHYSICAL REVIEW LETTERS, 1989, 63 (06) :648-651

[33] LOW-TEMPERATURE SPECIFIC-HEAT OF YBA2CU3O7 SINGLE-CRYSTALS [J].

LASJAUNIAS, JC ;

NOEL, H ;

LEVET, JC ;

POTEL, M ;

GOUGEON, P .

PHYSICS LETTERS A, 1988, 129 (03) :185-187

[34] THERMAL AND SUPERCONDUCTING PROPERTIES OF ZR-BASED AMORPHOUS-ALLOYS - EFFECT OF STRUCTURAL RELAXATION [J].

LASJAUNIAS, JC ;

RAVEX, A ;

LABORDE, O ;

BETHOUX, O .

PHYSICA B & C, 1984, 126 (1-3) :126-133

[35] SUPERCONDUCTING PROPERTIES OF AMORPHOUS SPUTTERED ZR70MO30 [J].

LASJAUNIAS, JC ;

LABORDE, O ;

RAVEX, A ;

ZOUGMORE, F .

SOLID STATE COMMUNICATIONS, 1985, 54 (09) :835-838

[36] DISORDERED ELECTRONIC SYSTEMS [J].

LEE, PA ;

RAMAKRISHNAN, TV .

REVIEWS OF MODERN PHYSICS, 1985, 57 (02) :287-337

[37] SUPERCONDUCTING AND NORMAL-STATE MAGNETIC-SUSCEPTIBILITY ANISOTROPY IN YBA2CU3O7 [J].

LEE, WC ;

JOHNSTON, DC .

PHYSICAL REVIEW B, 1990, 41 (04) :1904-1909

[38] SUPERCONDUCTING FLUCTUATION DIAMAGNETISM ABOVE TC IN YBA2CU3O7, LA1.8SR0.2CUO4, AND BI2-XPBXSR2CACU2O8+DELTA [J].

LEE, WC ;

KLEMM, RA ;

JOHNSTON, DC .

PHYSICAL REVIEW LETTERS, 1989, 63 (09) :1012-1015

[39] 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

[40] NMR AND NQR IN THE HIGH-TC SUPERCONDUCTORS (LA1-XSRX)2CUO4 AND BA2YCU3O7 [J].

LUTGEMEIER, H ;

PIEPER, MW .

SOLID STATE COMMUNICATIONS, 1987, 64 (02) :267-270

← 1 2 3 4 5 6 →