Observation of Ising spin-nematic order and its close relationship to the superconductivity in FeSe single crystals

التفاصيل البيبلوغرافية
العنوان: Observation of Ising spin-nematic order and its close relationship to the superconductivity in FeSe single crystals
المؤلفون: Dongna, Yuan, Jie, Yuan, Yulong, Huang, Shunli, Ni, Zhongpei, Feng, Huaxue, Zhou, Yiyuan, Mao, Kui, Jin, Guangming, Zhang, Xiaoli, Dong, Fang, Zhou, Zhongxian, Zhao
المصدر: Phys. Rev. B 94, 060506 (2016)
سنة النشر: 2016
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Superconductivity
الوصف: Superconducting FeSe single crystals of (001) orientation are synthesized via a hydrothermal ion-release route. An Ising spin-nematic order is identified by our systematic measurements of in-plane angular-dependent magnetoresistance (AMR) and static magnetization. The turn-on temperature of anisotropic AMR signifies the Ising spin-nematic ordering temperature Tsn, below which a two-fold rotational symmetry is observed in the iron plane. A downward curvature appears below Tsn in the temperature dependence of static magnetization for the weak in-plane magnetic field as reported previously. Remarkably, we find a universal linear relationship between Tc and Tsn among various superconducting samples, indicating that the spin nematicity and the superconductivity in FeSe have a common microscopic origin.
Comment: 13 pages, 4 figures
نوع الوثيقة: Working Paper
DOI: 10.1103/PhysRevB.94.060506
URL الوصول: http://arxiv.org/abs/1605.01507
رقم الأكسشن: edsarx.1605.01507
قاعدة البيانات: arXiv