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PhysRevLett.111.097002.pdf | 1.58 MB | Adobe PDF | 見る/開く |
タイトル: | Detection of Antiferromagnetic Ordering in Heavily Doped LaFeAsO_{1-x}H_{x} Pnictide Superconductors Using Nuclear-Magnetic-Resonance Techniques |
著者: | Fujiwara, N. https://orcid.org/0000-0003-2858-6878 (unconfirmed) Tsutsumi, S. Iimura, S. Matsuishi, S. Hosono, H. Yamakawa, Y. Kontani, H. |
著者名の別形: | 藤原, 直樹 |
発行日: | 26-Aug-2013 |
出版者: | American Physical Society (APS) |
誌名: | Physical Review Letters |
巻: | 111 |
号: | 9 |
抄録: | We studied double superconducting (SC) domes in LaFeAsO_{1-x}H_{x} by using ^{75}As and ^{1}H nuclear-magnetic-resonance techniques and unexpectedly discovered that a new antiferromagnetic (AF) phase follows the double SC domes on further H doping, forming a symmetric alignment of AF and SC phases in the electronic phase diagram. We demonstrated that the new AF ordering originates from the nesting between electron pockets, unlike the nesting between electron and hole pockets, as seen in the majority of undoped pnictides. The new AF ordering is derived from the features common to high-T_{c} pnictides; however, it has not been reported so far for other high-T_{c} pnictides because of their poor electron doping capability. |
著作権等: | © 2013 American Physical Society |
URI: | http://hdl.handle.net/2433/179143 |
DOI(出版社版): | 10.1103/PhysRevLett.111.097002 |
PubMed ID: | 24033063 |
出現コレクション: | 学術雑誌掲載論文等 |
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