TY - JOUR
T1 - Superconducting and fermi surface properties of single crystal Zr2Co
AU - Teruya, Atsushi
AU - Kakihana, Masashi
AU - Takeuchi, Tetsuya
AU - Aoki, Dai
AU - Honda, Fuminori
AU - Nakamura, Ai
AU - Haga, Yoshinori
AU - Matsubayashi, Kazuyuki
AU - Uwatoko, Yoshiya
AU - Harima, Hisatomo
AU - Hedo, Masato
AU - Nakama, Takao
AU - Onuki, Yoshichika
N1 - Publisher Copyright:
© 2016 The Physical Society of Japan.
PY - 2016
Y1 - 2016
N2 - We succeeded in growing single crystals of a superconductor Zr2Co with the tetragonal structure by the Bridgman method and carried out electrical resistivity, magnetic susceptibility, magnetization, specific heat, and de Haas- van Alphen (dHvA) experiments. Superconductivity is a characteristic revealing that the electronic specific heat at 1.45K in the form of Ce=T in the superconducting state increases not linearly but as a function of √ H p up to a magnetic field close to the upper critical field Hc2 = 11 kOe. The superconducting transition temperature Tsc is found to increase markedly with increasing pressure from Tsc = 5.2K at ambient pressure to 9.5K at 8 GPa. From the dHvA experiment, several kinds of dHvA branches are detected, which are well explained by the results of the energy band calculation. The main conduction electrons are Zr-4d and Co-3d electrons.
AB - We succeeded in growing single crystals of a superconductor Zr2Co with the tetragonal structure by the Bridgman method and carried out electrical resistivity, magnetic susceptibility, magnetization, specific heat, and de Haas- van Alphen (dHvA) experiments. Superconductivity is a characteristic revealing that the electronic specific heat at 1.45K in the form of Ce=T in the superconducting state increases not linearly but as a function of √ H p up to a magnetic field close to the upper critical field Hc2 = 11 kOe. The superconducting transition temperature Tsc is found to increase markedly with increasing pressure from Tsc = 5.2K at ambient pressure to 9.5K at 8 GPa. From the dHvA experiment, several kinds of dHvA branches are detected, which are well explained by the results of the energy band calculation. The main conduction electrons are Zr-4d and Co-3d electrons.
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U2 - 10.7566/JPSJ.85.034706
DO - 10.7566/JPSJ.85.034706
M3 - Article
AN - SCOPUS:85009152921
SN - 0031-9015
VL - 85
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
IS - 3
M1 - 034706
ER -