Magnetic phase boundary of BaVS3 clarified with high-pressure mu+SR

Article

关键词: INSULATOR-TRANSITION;    NEUTRON-DIFFRACTION;    CRYSTAL-STRUCTURE;    GROUND-STATE;    NMR;   

DOI  :  10.1103/PhysRevB.101.174403

来源: SCIE

【 摘 要 】

The magnetic nature of the quasi-one-dimensional BaVS3 has been studied as a function of temperature down to 0.25 K and pressure up to 1.97 GPa on a powder sample using the positive muon spin rotation and relaxation (mu(+) SR) technique. At ambient pressure, BaVS3 enters an incommensurate antiferromagnetic ordered state below the Neel temperature (T-N)31 K. T-N is almost constant as the pressure (p) increases from ambient pressure to 1.4 GPa, then T-N decreases rapidly for p > 1.4 GPa, and finally disappears at p similar to 1.8 GPa, above which a metallic phase is stabilized. Hence, T-N is found to be equivalent to the pressure-induced metal-insulator transition temperature (T-MI) at p > 1.4 GPa.

【 授权许可】

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