Search for spontaneous magnetization in noncentrosymmetric superconductors

Search for spontaneous magnetization in noncentrosymmetric superconductors
复制标题

寻找非中心对称超导体中的自发磁化

DOI:
10.1088/1742-6596/683/1/012029
复制
发表时间:
2016
期刊:
Journal of Physics: Conference Series
影响因子:
--
通讯作者:
Y. Ōnuki
Y. Ōnuki
中科院分区:
--
文献类型:
--
作者:
A. Sumiyama;D. Kawakatsu;J. Gouchi;I. Kawasaki;A. Yamaguchi;G. Motoyama;Y. Hirose;R. Settai;Y. Ōnuki

文献摘要

参考文献

被引文献

相似文献

我们使用 SQUID 磁力计测量了两种非中心对称超导体:Ir2Ga9 和 CePt3Si 的磁化强度,这两种超导体都没有测试过超导状态下的时间反转对称性。对于Ir2Ga9,在零磁场下,在超导转变温度Tc∼2.2 K以下的磁化强度变化ΔM小于10-5 G,这表明ΔM源于可能的残余磁场引起的迈斯纳效应。当 CePt3Si 在零磁场中冷却时,沿 c 轴的 ΔM 首先降低到 Tc+ ∼ 0.75 K 以下(高 Tc 相),然后增加到 Tc– ∼ 0.45 K 以下(体超导相)。由于这种行为无法用迈斯纳效应来解释,因此它可能是自发磁化的迹象。
We have measured the magnetization of two noncentrosymmetric superconductors: Ir2Ga9 and CePt3Si using a SQUID magnetometer, neither of which has been tested for the time-reversal symmetry in the superconducting state. For Ir2Ga9, the magnetization change ΔM below the superconducting transition temperature Tc ∼ 2.2 K was smaller than 10-5 G in zero magnetic field, suggesting that ΔM originates in the Meissner effect induced by the possible residual field. When CePt3Si was cooled in zero magnetic field, ΔM along the c axis first decreased below Tc+ ∼ 0.75 K (high-Tc phase) and then increased below Tc– ∼ 0.45 K (bulk superconducting phase). Since this behavior cannot be explained by the Meissner effect, it may be a sign of a spontaneous magnetization.
重费米子超导体CeRhSi_3在压力下的交流磁化率
DOI: --
发表时间: 2011
期刊: Journal of Physical Society of Japan
影响因子: --
作者:
T.Sugawara;et al
通讯作者: et al
DOI: 10.1143/jpsj.73.1657
发表时间: 2004-07
影响因子: 1.7
作者:
Takashi Yasuda;H. Shishido;T. Ueda;Shin Hashimoto;R. Settai;T. Takeuchi;Tatsuma D. Matsuda;Y. Haga;Y. Ōnuki
通讯作者: Takashi Yasuda;H. Shishido;T. Ueda;Shin Hashimoto;R. Settai;T. Takeuchi;Tatsuma D. Matsuda;Y. Haga;Y. Ōnuki
DOI: 10.1143/jpsj.76.051009
发表时间: 2007-05-01
影响因子: 1.7
作者:
Bauer, Ernst;Kaldarar, Heinich;Bonalde, Ismardo
通讯作者: Bonalde, Ismardo
DOI: --
发表时间: 2006
期刊: J. Phys. Soc. Jpn Vol.75
影响因子: --
作者:
Keisuke;Nakatsuji
通讯作者: Nakatsuji