2016年3月
Strong charge density wave fluctuation and sliding state in PdTeI with quasi-one-dimensional PdTe chains
PHYSICAL REVIEW B
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- 巻
- 93
- 号
- 12
- 開始ページ
- 121101-1
- 終了ページ
- 121101-5
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1103/PhysRevB.93.121101
- 出版者・発行元
- AMER PHYSICAL SOC
We investigate the physical properties of PdTeI single crystal containing quasi-one-dimensional (1D) PdTe chains. Surprisingly, we find that the carrier concentration decreases gradually before the long-range charge density wave (CDW) ordering state occurring at T-1 similar to 110 K, reflecting the existence of strong CDW fluctuation with possible pseudogap state at T >> T-1 because of dynamic charge separation of Pd ions (Pd3+ -> Pd2+ + Pd4+). Moreover, the sliding CDW state appears below T-2 similar to 6 K. Combining such low T-2 with the feature of multiple quasi-1D bands, PdTeI exhibits exotic crossover behavior from negative to huge positive magnetoresistance under magnetic field and field-induced localization. Thus, PdTeI provides a novel platform for studying the CDW fluctuation and the interplay between magnetic field and CDW state.
- リンク情報
- ID情報
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- DOI : 10.1103/PhysRevB.93.121101
- ISSN : 2469-9950
- eISSN : 2469-9969
- Web of Science ID : WOS:000371404000001