Twofold enhancement of the hidden-order/large-moment antiferromagnetic phase boundary in the URu2-xFexSi2 system

Article

关键词: ELECTRON-MAGNON INTERACTION;    ORDER TRANSITION;    FERMI-SURFACE;    PRESSURE;    SUPERCONDUCTIVITY;    TEMPERATURE;    RESISTIVITY;    INSTABILITY;    LATTICE;   

DOI  :  10.1103/PhysRevB.84.245122

来源: SCIE

【 摘 要 】

Electrical resistivity, specific heat, and magnetization measurements on URu2-xFexSi2 reveal a twofold enhancement of the hidden-order (HO)/large-moment antiferromagnetic (LMAFM) phase boundary T-0(x). The T-0(P-ch) curve, obtained by converting x to chemical pressure Pch, is strikingly similar to the T-0(P) curve, where P is applied pressure, for URu2Si2 both exhibit a kink at 1.5 GPa and a maximum at similar to 7 GPa. This similarity suggests that the HO-LMAFM transition at 1.5 GPa in URu2Si2 occurs at x approximate to 0.2 (P-ch approximate to 1.5 GPa) in URu2-xFexSi2. URu2-xFexSi2 provides an opportunity for studying the HO and LMAFM phases with methods that probe the electronic structure [e. g., scanning tunneling microscopy (STM), angle-resolved photoemission spectroscopy (ARPES), and point-contact spectroscopy (PCS)] but cannot be used under pressure.

【 授权许可】

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