Superconductivity of PrOs4Sb12 at pressures to 10GPa

Superconductivity of PrOs4Sb12 at pressures to 10GPa
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PrOs4Sb12 在 10GPa 压力下的超导性

DOI:
10.1016/j.jmmm.2006.10.255
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发表时间:
2007
影响因子:
2.7
通讯作者:
S. Tozer
S. Tozer
中科院分区:
材料科学3区
文献类型:
--
作者:
N. Kurita;M. Hedo;M. Kano;T. Fujiwara;Y. Uwatoko;S. Tozer

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在0.3 - 300 K和9.8GPa压力下,对重费米子超导体PrOs_4Sb_(12)进行了电阻率测量。在P=9.8GPa以下的所有压力下,都观察到了由于超导状态而导致的零电阻率。当压力增加到2.0GPa时,超导转变温度Tc以-0.16K/GPa的速率线性向低温移动。随着压力的增加,Tc的变化趋势逐渐变小,并在高压下饱和到1.3K的恒定值。而上临界场Hc 2则随着压力的增加而被强烈抑制。由超导转变起始温度估算出9.8GPa下的Hc 2为0.91T(0.5K)。
Electrical resistivity measurements have been performed on the heavy fermion superconductor PrOs4Sb12between 0.3 and 300K at pressures up to 9.8GPa. Zero resistivity due to superconducting state was observed at all pressures up to P=9.8GPa. With increasing pressure up to 2.0GPa, superconducting transition temperature Tcwas linearly shifted to lower temperature at a rate of −0.16K/GPa. Effect of pressure on Tcbecame smaller on further pressurization, following that the value of Tcwas saturated to a constant value of 1.3K at high pressure. While, the upper critical field Hc2was strongly suppressed by increasing pressure. Hc2at 9.8GPa estimated from the onset temperature of superconducting transition was 0.91T at 0.5K.
DOI: 10.1103/physrevb.65.100506
发表时间: 2002-03-01
期刊: PHYSICAL REVIEW B
影响因子: 3.7
作者:
Bauer, ED;Frederick, NA;Maple, MB
通讯作者: Maple, MB
重费米子超导体 PrOs_4Sb_<12> 中磁场感应四极有序的证据
DOI: --
发表时间: 2003
期刊: J.Phys.Soc.Jpn. Vol.72 No.5
影响因子: --
作者:
日高芳樹;甲斐昌一;et al.;M.Kohgi et al.
通讯作者: M.Kohgi et al.