Large Tc depression at low angle [100] tilt grain boundaries in bulk Bi2Sr2CaCu2O8+δ bicrystals

Qiang Li; Y. N. Tsay; Y. Zhu; M. Suenaga; G. D. Gu; N. Koshizuka

doi:10.1063/1.118514

Large T_c depression at low angle [100] tilt grain boundaries in bulk Bi₂Sr₂CaCu₂O_8+δ bicrystals

Qiang Li
, Y. N. Tsay
, Y. Zhu
, M. Suenaga
, G. D. Gu
, N. Koshizuka

Physics and Astronomy

Brookhaven National Laboratory
University of New South Wales
International Superconductivity Technology Center

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

Large depression of T_c at 7° [100] tilt grain boundaries was observed in bulk Bi₂Sr₂CaCu₂O_8+δ (Bi2212) bicrystals by measuring the zero-field electrical transport properties of the grain boundaries and the constituent single crystals over an extended range of currents and voltages. The T_c- depressed region was determined to be around 20 nm, comparable to the width of the strain field associated with the observed array of grain-boundary dislocations. Superconducting coupling of the grain boundaries increases sharply as temperature decreases below the grain-boundary T_c≅68 K.

Original language	English
Pages (from-to)	1164-1166
Number of pages	3
Journal	Applied Physics Letters
Volume	70
Issue number	9
DOIs	https://doi.org/10.1063/1.118514
State	Published - Mar 3 1997

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title = "Large Tc depression at low angle [100] tilt grain boundaries in bulk Bi2Sr2CaCu2O8+δ bicrystals",

abstract = "Large depression of Tc at 7° [100] tilt grain boundaries was observed in bulk Bi2Sr2CaCu2O8+δ (Bi2212) bicrystals by measuring the zero-field electrical transport properties of the grain boundaries and the constituent single crystals over an extended range of currents and voltages. The Tc- depressed region was determined to be around 20 nm, comparable to the width of the strain field associated with the observed array of grain-boundary dislocations. Superconducting coupling of the grain boundaries increases sharply as temperature decreases below the grain-boundary Tc≅68 K.",

author = "Qiang Li and Tsay, \{Y. N.\} and Y. Zhu and M. Suenaga and Gu, \{G. D.\} and N. Koshizuka",

year = "1997",

month = mar,

day = "3",

doi = "10.1063/1.118514",

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pages = "1164--1166",

journal = "Applied Physics Letters",

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T1 - Large Tc depression at low angle [100] tilt grain boundaries in bulk Bi2Sr2CaCu2O8+δ bicrystals

AU - Li, Qiang

AU - Tsay, Y. N.

AU - Zhu, Y.

AU - Suenaga, M.

AU - Gu, G. D.

AU - Koshizuka, N.

PY - 1997/3/3

Y1 - 1997/3/3

N2 - Large depression of Tc at 7° [100] tilt grain boundaries was observed in bulk Bi2Sr2CaCu2O8+δ (Bi2212) bicrystals by measuring the zero-field electrical transport properties of the grain boundaries and the constituent single crystals over an extended range of currents and voltages. The Tc- depressed region was determined to be around 20 nm, comparable to the width of the strain field associated with the observed array of grain-boundary dislocations. Superconducting coupling of the grain boundaries increases sharply as temperature decreases below the grain-boundary Tc≅68 K.

AB - Large depression of Tc at 7° [100] tilt grain boundaries was observed in bulk Bi2Sr2CaCu2O8+δ (Bi2212) bicrystals by measuring the zero-field electrical transport properties of the grain boundaries and the constituent single crystals over an extended range of currents and voltages. The Tc- depressed region was determined to be around 20 nm, comparable to the width of the strain field associated with the observed array of grain-boundary dislocations. Superconducting coupling of the grain boundaries increases sharply as temperature decreases below the grain-boundary Tc≅68 K.

UR - https://www.scopus.com/pages/publications/0031550759

U2 - 10.1063/1.118514

DO - 10.1063/1.118514

M3 - Article

AN - SCOPUS:0031550759

SN - 0003-6951

VL - 70

SP - 1164

EP - 1166

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 9

ER -

Large T_c depression at low angle [100] tilt grain boundaries in bulk Bi₂Sr₂CaCu₂O_8+δ bicrystals

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