TRAPPING AND RELAXATION OF INTERGRAIN AND INTRAGRAIN VORTICES IN YBA2CU3O7-DELTA

被引：15

作者：

BLINOV, EV ^{[1
]}

LAHDERANTA, E ^{[1
]}

LAIHO, R ^{[1
]}

STEPANOV, YP ^{[1
]}

机构：

[1] AF IOFFE PHYSICOTECH INST, ST PETERSBURG 194021, USSR

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1992年 / 199卷 / 1-2期

关键词：

D O I：

10.1016/0921-4534(92)90560-Y

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Isothermoremanent magnetization and its relaxation with time have been investigated in ceramics and powders of YBa2Cu3O7-delta at different temperatures after magnetizing the sample in a field of H(ext) < 600 Oe. From the results for powder samples we obtained for intragranular vortices the value of the effective pinning energy U(eff) almost-equal-to 0.7 eV, independent of H(ext). In the ceramic material U(eff) was found to depend strongly on the applied field reaching a value of 5 eV at 10 Oe and decreasing steeply when the magnetizing field was increased. The field dependence is discussed by using a model which takes into account the interaction between vortices.

引用

页码：201 / 206

页数：6

共 50 条

[41] OXYGEN-DEFECT FLUX PINNING, ANOMALOUS MAGNETIZATION AND INTRAGRAIN GRANULARITY IN YBA2CU3O7-DELTA
DAEUMLING, M
SEUNTJENS, JM
LARBALESTIER, DC
NATURE, 1990, 346 (6282) : 332 - 335
[42] ORDERING OF O VACANCIES IN YBA2CU3O7-DELTA
ALIGIA, AA
ROJO, AG
ALASCIO, BR
PHYSICAL REVIEW B, 1988, 38 (10): : 6604 - 6608
[43] ANISOTROPIC 1/F NOISE AND MOTION OF MAGNETIC VORTICES IN YBA2CU3O7-DELTA
SONG, Y
MISRA, A
CROOKER, PP
GAINES, JR
PHYSICAL REVIEW B, 1992, 45 (13): : 7574 - 7576
[44] Linear and nonlinear microwave dynamics of vortices in YBa2CU3O7-delta thin films
Belk, N
Oates, DE
Feld, DA
Dresselhaus, G
Dresselhaus, MS
PHYSICAL REVIEW B, 1997, 56 (18): : 11966 - 11978
[45] EPITAXIAL-GROWTH AND PROPERTIES OF YBA2CU3O7-DELTA/NDGAO3/YBA2CU3O7-DELTA TRILAYER STRUCTURES
BOIKOV, Y
BRORSSON, G
CLAESON, T
IVANOV, ZG
APPLIED PHYSICS LETTERS, 1991, 59 (20) : 2606 - 2608
[46] POSITRON TRAPPING IN Y1-XPRXBA2CU3O7-DELTA AND THE FERMI-SURFACE OF YBA2CU3O7-DELTA
SHUKLA, A
HOFFMANN, L
MANUEL, AA
WALKER, E
BARBIELLINI, B
PETER, M
PHYSICAL REVIEW B, 1995, 51 (09) : 6028 - 6034
[47] ANELASTIC CREEP AND AFTEREFFECT STUDIES OF OXYGEN RELAXATION IN YBA2CU3O7-DELTA
COST, JR
STANLEY, JT
SCRIPTA METALLURGICA ET MATERIALIA, 1993, 28 (07): : 773 - 778
[48] Surface relaxation and surface dynamics of YBa2Cu3O7-delta(001) slabs
Philippe, L
Lambin, P
JOURNAL OF PHYSICS-CONDENSED MATTER, 1996, 8 (49) : 10195 - 10207
[49] Spectral dependence of relaxation in YBa2Cu3O7-delta with femtosecond laser excitation
Vengrus, II
Dobryakov, AL
Letokhov, VS
Lozovik, YE
Kovalenko, SA
Ernsting, NR
Marovskii, G
JETP LETTERS, 1995, 62 (09) : 758 - 762
[50] SUPERCONDUCTIVITY IN YBA2CU3O7-DELTA, YSR2CU3O7-DELTA FAMILY
ODA, M
MURAKAMI, T
ENOMOTO, Y
SUZUKI, M
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1987, 26 : 1053 - 1054

← 1 2 3 4 5 →