TY - JOUR
T1 - Magnetic flux rotation anomalies in superconducting La1.85 Sr0.15 Cu O4
AU - Bruckental, Y.
AU - Shaulov, A.
AU - Yeshurun, Y.
PY - 2008/2/22
Y1 - 2008/2/22
N2 - Vector magnetization measurements in La1.85 Sr0.15 Cu O4 under fields slightly tilted from the crystallographic ab plane reveal flux rotation with distinctive behavior around T* ≈15 K. The temperature dependence of the onset-field H* for flux rotation and the dependence of H* upon the tilting angle are markedly different below and above T*, exhibiting pronounced anomalies in the crossover regime. Possible mechanisms for these anomalies, such as dimensional crossover in superconductivity or the anomalous behavior of the in-plane penetration depth due to coexistence of two superconducting gaps, are discussed.
AB - Vector magnetization measurements in La1.85 Sr0.15 Cu O4 under fields slightly tilted from the crystallographic ab plane reveal flux rotation with distinctive behavior around T* ≈15 K. The temperature dependence of the onset-field H* for flux rotation and the dependence of H* upon the tilting angle are markedly different below and above T*, exhibiting pronounced anomalies in the crossover regime. Possible mechanisms for these anomalies, such as dimensional crossover in superconductivity or the anomalous behavior of the in-plane penetration depth due to coexistence of two superconducting gaps, are discussed.
UR - https://www.scopus.com/pages/publications/40749096438
U2 - 10.1103/physrevb.77.064512
DO - 10.1103/physrevb.77.064512
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AN - SCOPUS:40749096438
SN - 1098-0121
VL - 77
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 6
M1 - 064512
ER -