Vortex Lattice Structures of Sr 2 RuO 4
Vortex Lattice Structures of Sr 2 RuO 4
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DOI：
10.1103/physrevlett.80.5184
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发表时间：
1998-02
影响因子：
8.6
通讯作者：
D. Agterberg
中科院分区：
文献类型：
--
作者：
D. Agterberg
本文研究了超导态奇宇称表示的${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$的涡旋晶格结构。特别强调的是放在被认为是相关的这种材料的二维表示。结果表明，当零场态打破时间反演对称性时，当基面内沿沿着高对称方向存在有限场时，必然存在两个超导跃迁。此外，它表明，一个正方形的涡晶格时，预期的字段是沿着$c$轴。正方形晶格相对于下面的离子晶格的取向产生的信息，其中Ru $4d$轨道是相关的超导状态。
The vortex lattice structures of ${\mathrm{Sr}}_{2}{\mathrm{RuO}}_{4}$ for the odd-parity representations of the superconducting state are examined. Particular emphasis is placed upon the two dimensional representation which is believed to be relevant to this material. It is shown that when the zero-field state breaks time reversal symmetry, there must exist two superconducting transitions when there is a finite field along a high symmetry direction in the basal plane. Also it is shown that a square vortex lattice is expected when the field is along the $c$ axis. The orientation of the square lattice with respect to the underlying ionic lattice yields information as to which Ru $4d$ orbitals are relevant to the superconducting state.