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Magnetic Field Dependence of Penetration Depth of Optimally Doped Bi 2 Sr 2 CaCu 2 O 8+δ Single Crystal
Author(s) -
Feng S.J.,
Zhou H.D.,
Shi L.,
Li G.,
Wang J.,
Li X.G.
Publication year - 2001
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/1521-3951(200112)228:3<711::aid-pssb711>3.0.co;2-w
Subject(s) - penetration depth , condensed matter physics , penetration (warfare) , magnetic field , magnetization , materials science , london penetration depth , single crystal , doping , nonlinear system , quadratic equation , field dependence , power law , physics , nuclear magnetic resonance , optics , geometry , mathematics , quantum mechanics , statistics , operations research
The behavior of the in‐plane penetration depth λ ( T ) extracted from the reversible magnetization in different magnetic fields for Bi 2 Sr 2 CaCu 2 O 8+ δ single crystal is investigated. It is found that the temperature dependence of penetration depth in different fields follows a quadratic function between 40 and 60 K. The magnetic field dependence of penetration depth at different temperatures obeys a power law. The observed temperature dependence of λ ( T ) in different fields is similar to the predicted behaviors of the nonlocal‐nonlinear London theory.