当前位置:
X-MOL 学术
›
Phys. Rev. Lett.
›
论文详情
Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Thermodynamic Evidence for the Fulde-Ferrell-Larkin-Ovchinnikov State in theKFe2As2Superconductor
Physical Review Letters ( IF 8.1 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1103/physrevlett.119.217002 Chang-woo Cho , Jonathan Haiwei Yang , Noah F. Q. Yuan , Junying Shen , Thomas Wolf , Rolf Lortz
Physical Review Letters ( IF 8.1 ) Pub Date : 2017-11-20 00:00:00 , DOI: 10.1103/physrevlett.119.217002 Chang-woo Cho , Jonathan Haiwei Yang , Noah F. Q. Yuan , Junying Shen , Thomas Wolf , Rolf Lortz
We investigate the magnetic phase diagram near the upper critical field of by magnetic torque and specific heat experiments using a high-resolution piezorotary positioner to precisely control the parallel alignment of the magnetic field with respect to the FeAs layers. We observe a clear double transition when the field is strictly aligned in the plane and a characteristic upturn of the upper critical field line, which goes far beyond the Pauli limit at 4.8 T. This provides firm evidence that a Fulde-Ferrell-Larkin-Ovchinnikov state exists in this iron-based superconductor.
中文翻译:
KFe2As2超导体中Fulde-Ferrell-Larkin-Ovchinnikov态的热力学证据
我们研究了磁场的上临界场附近的磁相图 通过磁转矩和比热实验,使用高分辨率压电旋转定位器来精确控制磁场相对于FeAs层的平行排列。当场严格在平面上对齐时,我们观察到明显的双重过渡,并且上临界场线具有特征性的向上倾斜,该上升趋势远远超出了4.8 T的Pauli极限。这提供了有力的证据,表明Fulde-Ferrell-Larkin-Ovchinnikov铁基存在 超导体。
更新日期:2017-11-20
中文翻译:
KFe2As2超导体中Fulde-Ferrell-Larkin-Ovchinnikov态的热力学证据
我们研究了磁场的上临界场附近的磁相图 通过磁转矩和比热实验,使用高分辨率压电旋转定位器来精确控制磁场相对于FeAs层的平行排列。当场严格在平面上对齐时,我们观察到明显的双重过渡,并且上临界场线具有特征性的向上倾斜,该上升趋势远远超出了4.8 T的Pauli极限。这提供了有力的证据,表明Fulde-Ferrell-Larkin-Ovchinnikov铁基存在 超导体。