ULTRASONIC INVESTIGATION OF THE HIGH-TC SUPERCONDUCTING BA1-XKXBIO3 SYSTEM

被引：5

作者：

XU, MF

QIAN, YJ

SUN, KJ

ZHENG, Y

RAN, Q

HINKS, D

SARMA, BK

LEVY, M

机构：

[1] NASA,LANGLEY RES CTR,HAMPTON,VA 23665

[2] ARGONNE NATL LAB,ARGONNE,IL 60439

来源：

PHYSICA B | 1990年 / 165卷

关键词：

D O I：

10.1016/S0921-4526(09)80226-3

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Ultrasonic Attenuation and velocity measurements have been performed in Ba1−xKxB1O3, with x-0.35 and x-0.4. In the x-0.4 system, for transverse waves, it was observed that the attenuation drops below Tc almost linearly and the velocity has a kink right at Tc In magnetic field sweeps at 17 K, the velocity decreases and the attenuation increases slightly in high fields, suggesting a vortex lattice structure change in the superconducting state. In the x-0.35 system, with transverse waves, the attenuation appears to have a nearly exponential decrease below Tc. © 1990, Elsevier Science Publishers B.V. (North-Holland). All rights reserved.

引用

页码：1281 / 1282

页数：2

共 8 条

[1] HIGH-TC SUPERCONDUCTIVITY IN BISMUTHATES - HOW MANY ROADS LEAD TO HIGH-TC [J].

BATLOGG, B ;

CAVA, RJ ;

SCHNEEMEYER, LF ;

ESPINOSA, GP .

IBM JOURNAL OF RESEARCH AND DEVELOPMENT, 1989, 33 (03) :208-214

[2] SUPERCONDUCTIVITY NEAR 30-K WITHOUT COPPER - THE BA0.6K0.4BIO3 PEROVSKITE [J].

CAVA, RJ ;

BATLOGG, B ;

KRAJEWSKI, JJ ;

FARROW, R ;

RUPP, LW ;

WHITE, AE ;

SHORT, K ;

PECK, WF ;

KOMETANI, T .

NATURE, 1988, 332 (6167) :814-816

[3]

FISHER DS, 1980, INHOMOGENEOUS SUPERC, P95

[4] SYNTHESIS, STRUCTURE AND SUPERCONDUCTIVITY IN THE BA1-XKXBIO3-Y SYSTEM [J].

HINKS, DG ;

DABROWSKI, B ;

JORGENSEN, JD ;

MITCHELL, AW ;

RICHARDS, DR ;

PEI, SY ;

SHI, DL .

NATURE, 1988, 333 (6176) :836-838

[5] SUPERCONDUCTIVITY ABOVE 20 K IN THE BA-K-BI-O SYSTEM [J].

MATTHEISS, LF ;

GYORGY, EM ;

JOHNSON, DW .

PHYSICAL REVIEW B, 1988, 37 (07) :3745-3746

[6] ULTRASONIC-ATTENUATION ANOMALY OF TL-CA-BA-CU-O AT SUPERCONDUCTING TRANSITION [J].

SUN, KJ ;

WINFREE, WP ;

XU, MF ;

LEVY, M ;

SARMA, BK ;

SINGH, AK ;

OSOFSKY, MS ;

LETOURNEAU, VM .

PHYSICA C, 1989, 162 :446-447

[7] FREQUENCY-DEPENDENT ULTRASONIC-ATTENUATION OF YBA2CU3O7 [J].

SUN, KJ ;

WINFREE, WP ;

XU, MF ;

SARMA, BK ;

LEVY, M ;

CATON, R ;

SELIM, R .

PHYSICAL REVIEW B, 1988, 38 (16) :11988-11991

[8] ULTRASONIC-ATTENUATION MEASUREMENTS IN SINGLE-PHASED YBA2CU3O7 [J].

XU, MF ;

BAUM, HP ;

SCHENSTROM, A ;

SARMA, BK ;

LEVY, M ;

SUN, KJ ;

TOTH, LE ;

WOLF, SA ;

GUBSER, DU .

PHYSICAL REVIEW B, 1988, 37 (07) :3675-3677

← 1 →