Majorana-Weyl fermions in the chiral superconductor Sr{sub 2}RuO{sub 4}
Majorana-Weyl fermions in the chiral superconductor Sr{sub 2}RuO{sub 4}
复制标题
手性超导体 Sr{sub 2}RuO{sub 4} 中的马约拉纳-韦尔费米子
DOI：
10.1103/physrevb.83.144502
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发表时间：
2011
影响因子：
3.7
通讯作者：
T. Matsuyama
中科院分区：
文献类型：
--
作者：
H. Nobukane;A. Tokuno;S. Tanda;T. Matsuyama
我们在手征超导体Sr{sub 2}RuO{sub 4}中发现了Majorana-Weyl费米子。电流-电压曲线揭示了异常行为：感应电压是偏置电流的偶函数。通过隧道结在边缘处观察到零偏压电导峰。磁场依赖性表明Majorana-Weyl费米子沿着单畴的闭合手征边缘电流在偏置电流下被激发。我们还讨论了单畴Sr{sub 2}RuO{sub 4}的手征性变化与自发磁化强度之间的关系。
We found Majorana-Weyl fermions in a chiral superconductor Sr{sub 2}RuO{sub 4}. The current-voltage curves reveal anomalous behavior: The induced voltage is an even function of the bias current. The zero-bias conductance peak was observed through the tunnel junction at the edge. The magnetic-field dependence suggests the excitation of the Majorana-Weyl fermions along the closed chiral edge current of the single domain under a bias current. We also discuss the relationship between a change in the chirality and the spontaneous magnetization of the single domain Sr{sub 2}RuO{sub 4}.