TY - JOUR
T1 - Metastable superconductivity below Tc2 in single-crystal HoMo6S8
AU - Koike, Y.
AU - Fukase, T.
AU - Kobayashi, N.
AU - Hosoya, S.
AU - Takei, H.
N1 - Funding Information:
We thank Prof. M. Tachiki and Dr. M. Ikebe for helpful discussions. We are also grateful to Prof. Y. Muto , Mr. S. Sakatsume and the members of Cryogenic Center of Tohoku University for their aid in using the diluation refrigerator. This work was supported by the Grant-in-Aid for Special Project Research on New Superconducting Materials No. 61105001 from the Ministry of Education, Science and Culture, Japan.
PY - 1987/12
Y1 - 1987/12
N2 - The ac susceptibility and electrical resistivity of single-crystal HoMo6S8 have been measured to study the metastable superconductivity quenched by rapid cooling down to a low temperature below Tc2. Time development of the ac susceptibility from the quenched superconducting state to the normal ferromagnetic state is explained by the nucleation and growth model at first-order phase transitions. Its relaxation time is approximately proportional to T-6.7 exp(-H/H0) in low magnetic fields at low temperatures. The quenched superconductivity is also destroyed anisotropically by magnetic field. Hysteresis in the resistivity in the magnetic field sweep and magnetic-field-induced zero-resistance state are discussed, considering dynamics of ferromagnetic domains.
AB - The ac susceptibility and electrical resistivity of single-crystal HoMo6S8 have been measured to study the metastable superconductivity quenched by rapid cooling down to a low temperature below Tc2. Time development of the ac susceptibility from the quenched superconducting state to the normal ferromagnetic state is explained by the nucleation and growth model at first-order phase transitions. Its relaxation time is approximately proportional to T-6.7 exp(-H/H0) in low magnetic fields at low temperatures. The quenched superconductivity is also destroyed anisotropically by magnetic field. Hysteresis in the resistivity in the magnetic field sweep and magnetic-field-induced zero-resistance state are discussed, considering dynamics of ferromagnetic domains.
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U2 - 10.1016/0378-4363(87)90170-7
DO - 10.1016/0378-4363(87)90170-7
M3 - Article
AN - SCOPUS:0023592993
VL - 148
SP - 106
EP - 112
JO - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
JF - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
SN - 0378-4363
IS - 1-3
ER -