Magnetic-field-induced transitions and evolution of magnetotransport properties in quasi-two-dimensional KMo6O17 in the charge-density-wave phase
SCIE
SCOPUS
- Title
- Magnetic-field-induced transitions and evolution of magnetotransport properties in quasi-two-dimensional KMo6O17 in the charge-density-wave phase
- Authors
- Wang, JF; Yang, M; Li, L; Sasaki, M; Ohnishi, A; Kitaura, M; Kim, KS; Kim, HJ
- Date Issued
- 2014-01-23
- Publisher
- AMERICAN PHYSICAL SOCIETY
- Abstract
- Longitudinal magnetoresistivity rho(xx)(B) and Hall resistivity rho(xy)(B) of KMo6O17 single crystals have been measured up to 60 T in a pulse magnet. Remarkable and unusual features at characteristic magnetic fields were found in both rho(xx)(B) and rho(xy)(B), which were attributed to Fermi surface reconstructions caused by field-induced density-wave transitions. To understand these transitions in detail, we analyzed rho(xx)(B) and rho(xy)(B) based on a multiband model. This model successfully described the experimental results, revealing that charge carriers are increased significantly at these transitions with increasing magnetic field as a result of the Fermi surface reconstruction. In particular, the charge carriers are increased by two orders of magnitude at B-osc = similar to 40 T, above which a quantum oscillation emerges in both rho(xx)(B) and rho(xy)(B). This strongly suggests that the field-induced quantum oscillation is closely related with the induced charge carriers.
- Keywords
- PURPLE BRONZE KMO6O17; FERMI-SURFACE; QUANTUM LIMIT; ELECTRON-GAS; STATE; GRAPHITE; ETA-MO4O11; MAGNETORESISTANCE; DIAGRAM
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/14738
- DOI
- 10.1103/PHYSREVB.89.035137
- ISSN
- 1098-0121
- Article Type
- Article
- Citation
- Physical Review B - Condensed Matter and Materials Physics, vol. 89, no. 3, 2014-01-23
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