Twin boundaries and upper critical field Hc2 in Y-Ba-Cu-O monocrystal

L. I. Burlachkov; L. I. Glazman

doi:10.1016/0921-4534(90)90555-s

Twin boundaries and upper critical field H_c2 in Y-Ba-Cu-O monocrystal

L. I. Burlachkov
, L. I. Glazman

RAS - Landau Institute for Theoretical Physics
Russian Academy of Sciences

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

5 Scopus citations

Abstract

The upper critical field is studied theoretically for the YBA₂Cu₃O_x monocrystal with a system of parallel twins. The dependence H_c2(T) has a positive curvature ( ∂²H_c2 ∂T² > 0) in the vicinity of T_c and a perfect crossover to the part with a negative curvature can appear as the temperature decreases. A singular maximum occurs in the angular dependence of H_c2 for the field direction coinciding with a twin plane.

Original language	English
Pages (from-to)	75-78
Number of pages	4
Journal	Physica C: Superconductivity and its Applications
Volume	166
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(90)90555-s
State	Published - 1 Mar 1990
Externally published	Yes

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abstract = "The upper critical field is studied theoretically for the YBA2Cu3Ox monocrystal with a system of parallel twins. The dependence Hc2(T) has a positive curvature ( ∂2Hc2 ∂T2 > 0) in the vicinity of Tc and a perfect crossover to the part with a negative curvature can appear as the temperature decreases. A singular maximum occurs in the angular dependence of Hc2 for the field direction coinciding with a twin plane.",

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N2 - The upper critical field is studied theoretically for the YBA2Cu3Ox monocrystal with a system of parallel twins. The dependence Hc2(T) has a positive curvature ( ∂2Hc2 ∂T2 > 0) in the vicinity of Tc and a perfect crossover to the part with a negative curvature can appear as the temperature decreases. A singular maximum occurs in the angular dependence of Hc2 for the field direction coinciding with a twin plane.

AB - The upper critical field is studied theoretically for the YBA2Cu3Ox monocrystal with a system of parallel twins. The dependence Hc2(T) has a positive curvature ( ∂2Hc2 ∂T2 > 0) in the vicinity of Tc and a perfect crossover to the part with a negative curvature can appear as the temperature decreases. A singular maximum occurs in the angular dependence of Hc2 for the field direction coinciding with a twin plane.

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Twin boundaries and upper critical field H_c2 in Y-Ba-Cu-O monocrystal

Abstract

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