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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