TY - JOUR
T1 - Pressure dependence of Tc in the MgB2 superconductor as probed by resistivity measurements
AU - Saito, E.
AU - Taknenobu, T.
AU - Ito, T.
AU - Iwasa, Y.
AU - Prassides, K.
AU - Arima, T.
PY - 2001/3/26
Y1 - 2001/3/26
N2 - High-pressure resistivity experiments were performed on the recently discovered superconductor, MgB2. Tc decreases quasi-linearly with applied pressure to 1.4 GPa at a rate of -2.0(1) K GPa-1, which is somewhat larger than that derived from ac susceptibility measurements. The reduction of Tc is consistent with the BCS picture, in a similar way to the C60-based superconductors. Taking into account the pressure dependence of the unit cell volume, V, the volume coefficient of Tc, d(ln Tc)/dV is significantly large.
AB - High-pressure resistivity experiments were performed on the recently discovered superconductor, MgB2. Tc decreases quasi-linearly with applied pressure to 1.4 GPa at a rate of -2.0(1) K GPa-1, which is somewhat larger than that derived from ac susceptibility measurements. The reduction of Tc is consistent with the BCS picture, in a similar way to the C60-based superconductors. Taking into account the pressure dependence of the unit cell volume, V, the volume coefficient of Tc, d(ln Tc)/dV is significantly large.
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U2 - 10.1088/0953-8984/13/12/102
DO - 10.1088/0953-8984/13/12/102
M3 - Article
AN - SCOPUS:0035952702
SN - 0953-8984
VL - 13
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 12
ER -