Field Induced Multiple Superconducting Phases in UTe_{2} along Hard Magnetic Axis.
Field Induced Multiple Superconducting Phases in UTe_{2} along Hard Magnetic Axis.
复制标题
UTe_{2} 中沿硬磁轴的场感应多个超导相。
作者：
H. Sakai;Y. Tokiwa;P. Opletal;M. Kimata;S. Awaji;T. Sasaki;D. Aoki;S. Kambe;Y. Tokunaga;Y. Haga
使用 T_{c}=2.1 K 的高质量单晶，在沿硬磁 b 轴的磁场 (H) 下探索二碲化铀的超导 (SC) 相图。同时电阻率和交流磁化率测量可识别具有对比场角依赖性的低场和高场 SC（分别为 LFSC 和 HFSC）相。晶体质量增加了 LFSC 相的上临界场，但 HFSC 相出现的~15 T 的 H^{*} 在各种晶体中始终相同。在 H^{*} 附近的 LFSC 相内部也观察到了相界特征，表明中间 SC 相的特征是磁通钉扎力较小。
The superconducting (SC) phase diagram in uranium ditelluride is explored under magnetic fields (H) along the hard magnetic b axis using a high-quality single crystal with T_{c}=2.1 K. Simultaneous electrical resistivity and ac magnetic susceptibility measurements discern low- and high-field SC (LFSC and HFSC, respectively) phases with contrasting field-angular dependence. Crystal quality increases the upper critical field of the LFSC phase, but the H^{*} of ∼15 T, at which the HFSC phase appears, is always the same through the various crystals. A phase boundary signature is also observed inside the LFSC phase near H^{*}, indicating an intermediate SC phase characterized by small flux pinning forces.
影响因子：
16.6
作者：
Bae S;Kim H;Eo YS;Ran S;Liu IL;Fuhrman WT;Paglione J;Butch NP;Anlage SM
通讯作者：
Anlage SM