Anisotropy of the field-induced kinetic energy density in Bi2212

被引：2

作者：

Pena, J. P. ^{[1
]}

da Silva, R. R. ^{[2
]}

Pureur, P. ^{[1
]}

机构：

[1] Univ Fed Rio Grande do Sul, Inst Fis, BR-91501970 Porto Alegre, RS, Brazil

[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, BR-13083970 Campinas, SP, Brazil

来源：

PHYSICA B-CONDENSED MATTER | 2014年 / 433卷

关键词：

Superconducting kinetic energy; Vortex lattice; Anisotropy; SUPERCONDUCTORS; BI2SR2CACU2O8+DELTA; GLASS; MAGNETIZATION; CONDENSATE; CRYSTALS; STATE;

D O I：

10.1016/j.physb.2013.10.025

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We present an experimental study of the in field kinetic energy density in two Bi2Sr2CaCu2O8 broken vertical bar delta single crystals. The kinetic energy density is determined from magnetization measurements performed above the irreversibility line. Anisotropy effects are observed when an external magnetic field is applied in the direction perpendicular or parallel to the superconducting Cu-O-2 planes. When the held is applied parallel to the c-axis, the most relevant contribution to the kinetic energy comes from the Abrikosov vortices. At low fields, an additional tel related to granularity is also observed. A kink in the kinetic energy density associated to the decoupling of the superconducting layers is identified when the held is applied parallel to the oh planes. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：79 / 83

页数：5

共 26 条

[1] FLUCTUATIONS OF VORTICES IN LAYERED HIGH-TC SUPERCONDUCTORS [J].

BULAEVSKII, LN ;

LEDVIJ, M ;

KOGAN, VG .

PHYSICAL REVIEW LETTERS, 1992, 68 (25) :3773-3776

[2] EVAPORATION OF A SINGLE VORTEX LINE IN A WEAKLY COUPLED MULTILAYERED SUPERCONDUCTOR [J].

BULAEVSKII, LN ;

MESHKOV, SV ;

FEINBERG, D .

PHYSICAL REVIEW B, 1991, 43 (04) :3728-3731

[3] Complexity in strongly correlated electronic systems [J].

Dagotto, E .

SCIENCE, 2005, 309 (5732) :257-262

[4]

de Gennes P.G., 1989, Superconductivity of Metals and Alloys

[5] STABILITY OF SHERRINGTON-KIRKPATRICK SOLUTION OF A SPIN GLASS MODEL [J].

DEALMEIDA, JRL ;

THOULESS, DJ .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1978, 11 (05) :983-990

[6] Kinetic energy change with doping upon superfluid condensation in high-temperature superconductors [J].

Deutscher, G ;

Santander-Syro, AF ;

Bontemps, N .

PHYSICAL REVIEW B, 2005, 72 (09)

[7] Fluctuations above Tc and the kinetic energy of Cooper pairs in La1.9Sr0.1CuO4 and Pb0.55In0.45 [J].

Doria, Mauro M. ;

Salem-Sugui, S., Jr. .

PHYSICAL REVIEW B, 2008, 78 (13)

[8] The Kinetic Energy of the Condensate in the Presence of an External Applied [J].

Doria, Mauro M. .

JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2009, 22 (03) :235-238

[9] VIRIAL-THEOREM FOR GINZBURG-LANDAU THEORIES WITH POTENTIAL APPLICATIONS TO NUMERICAL-STUDIES OF TYPE-II SUPERCONDUCTORS [J].

DORIA, MM ;

GUBERNATIS, JE ;

RAINER, D .

PHYSICAL REVIEW B, 1989, 39 (13) :9573-9575

[10] Abrupt change of Josephson plasma frequency at the phase boundary of the Bragg glass in Bi2Sr2CaCu2O8+δ [J].

Gaifullin, MB ;

Matsuda, Y ;

Chikumoto, N ;

Shimoyama, J ;

Kishio, K .

PHYSICAL REVIEW LETTERS, 2000, 84 (13) :2945-2948

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