TY - JOUR
T1 - Field cooling memory effect in Bi2212 and Bi2223 single crystals
AU - Shaltiel, D.
AU - Von Nidda, H. A.Krug
AU - Rosenstein, B.
AU - Shapiro, B. Ya
AU - Golosovsky, M.
AU - Shapiro, I.
AU - Loidl, A.
AU - Bogoslavsky, B.
AU - Fujii, T.
AU - Watanabe, T.
AU - Tamegai, T.
PY - 2010
Y1 - 2010
N2 - A memory effect in the Josephson vortex system created by a magnetic field in the highly anisotropic superconductors Bi2212 and Bi2223 is demonstrated using microwave power absorption. This surprising effect appears despite a very low viscosity of Josephson vortices compared to Abrikosov vortices. The superconductor is field-cooled in a DC magnetic field Hm oriented parallel to the CuO planes through the critical temperature Tc down to 4K, with subsequent reduction of the field to zero and again above H m. A large microwave power absorption signal is observed at a magnetic field just above the cooling field, clearly indicating a memory effect. The dependence of the signal on a deviation of the magnetic field from H m is the same for a wide range of Hm from 1500 to 17 000G.
AB - A memory effect in the Josephson vortex system created by a magnetic field in the highly anisotropic superconductors Bi2212 and Bi2223 is demonstrated using microwave power absorption. This surprising effect appears despite a very low viscosity of Josephson vortices compared to Abrikosov vortices. The superconductor is field-cooled in a DC magnetic field Hm oriented parallel to the CuO planes through the critical temperature Tc down to 4K, with subsequent reduction of the field to zero and again above H m. A large microwave power absorption signal is observed at a magnetic field just above the cooling field, clearly indicating a memory effect. The dependence of the signal on a deviation of the magnetic field from H m is the same for a wide range of Hm from 1500 to 17 000G.
UR - http://www.scopus.com/inward/record.url?scp=77952969704&partnerID=8YFLogxK
U2 - 10.1088/0953-2048/23/7/075001
DO - 10.1088/0953-2048/23/7/075001
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AN - SCOPUS:77952969704
SN - 0953-2048
VL - 23
JO - Superconductor Science and Technology
JF - Superconductor Science and Technology
IS - 7
M1 - 075001
ER -