Anomalous enhancement of upper critical field in Sr2RuO4 thin films
Anomalous enhancement of upper critical field in Sr2RuO4 thin films
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Sr2RuO4 薄膜上临界场的异常增强
DOI：
10.1103/physrevb.99.161111
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发表时间：
2019
影响因子：
3.7
通讯作者：
M. Kawasaki
中科院分区：
文献类型：
--
作者：
M. Uchida;M. Ide;M. Kawamura;K. S. Takahashi;Y. Kozuka;Y. Tokura;M. Kawasaki
我们报告了在超导薄膜中观察到的上临界场的大幅增强。通过接近二维的维度交叉，除了面内场方向与块体相比显着增强之外，遵循与块体场方向和转变温度之间不同的明确关系。的异常增强高度暗示超导特性的重要变化，可能伴随着三重态向量的旋转。我们的发现将成为利用薄膜进一步探索奇异特性的关键一步。
We report large enhancement of upper critical fieldobserved in superconductingthin films. Through dimensional crossover approaching two dimensions,except the in-plane field direction is dramatically enhanced compared to bulks, following a definite relation distinct from bulk one betweenand the transition temperature. The anomalous enhancement ofis highly suggestive of important changes of the superconducting properties, possibly accompanied with rotation of the tripletvector. Our findings will become a crucial step to further explore exotic properties by employingthin films.