TY - JOUR
T1 - Glasslike low-frequency ac response of ZrB12 and Nb single crystals in the surface superconducting state
AU - Tsindlekht, Menachem I.
AU - Leviev, Grigory I.
AU - Genkin, Valery M.
AU - Felner, Israel
AU - Paderno, Yurii B.
AU - Filippov, Vladimir B.
PY - 2006
Y1 - 2006
N2 - We report experimental studies of the low-frequency electrodynamics of ZrB12 and Nb single crystals. The ac susceptibility at frequencies 3-1000 Hz has been measured under a dc magnetic field H0 applied parallel to the sample surface. In the surface superconducting state for several H0 the real part of the ac magnetic susceptibility exhibits a logarithmic frequency dependence as for spin-glass systems. Kramers-Kronig analysis of the experimental data shows large losses at ultralow frequencies (<3 Hz). The wave function slope at the surface was found. The linear response of the order parameter to the ac excitation was extracted from the experimental data.
AB - We report experimental studies of the low-frequency electrodynamics of ZrB12 and Nb single crystals. The ac susceptibility at frequencies 3-1000 Hz has been measured under a dc magnetic field H0 applied parallel to the sample surface. In the surface superconducting state for several H0 the real part of the ac magnetic susceptibility exhibits a logarithmic frequency dependence as for spin-glass systems. Kramers-Kronig analysis of the experimental data shows large losses at ultralow frequencies (<3 Hz). The wave function slope at the surface was found. The linear response of the order parameter to the ac excitation was extracted from the experimental data.
UR - http://www.scopus.com/inward/record.url?scp=33644942123&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.73.104507
DO - 10.1103/PhysRevB.73.104507
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AN - SCOPUS:33644942123
SN - 1098-0121
VL - 73
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 10
M1 - 104507
ER -