← Back to search

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

Dongna Yuan, Jie Yuan, Yulong Huang, Shunli Ni, Zhongpei Feng, Huaxue Zhou, Yiyuan Mao, Kui Jin, Guangming Zhang, Xiaoli Dong, Fang Zhou, Zhongxian Zhao

DOI 10.1103/PhysRevB.94.060506 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

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 twofold 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.

Source-reported materials — not catalogue approval

FormulaReported Tc (K)Pressure (GPa)Type
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

7.6Pressure not reportedonset
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

7.6Pressure not reportedonset
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

10Pressure not reportedonset
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

10Pressure not reportedonset
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

6.8Pressure not reportedonset
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

10.6Pressure not reportedonset
(Li1-xFex)OHFe1-ySe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

42Pressure not reportedunknown
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

8Pressure not reportedunknown
FeSe

Archive — visibility unverified

Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.

36.7Pressure not reportedunknown

Similar papers