量子スピンラダー系(CPA)2CuBr4の1Hの核磁気共鳴

Material type: 文書・図像類

Author: 藤井, 裕ほか

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Publication date: 2007-07

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Note (General)：: Spin dynamics on a quantum spin-ladder system (CPA)2CuBr4 was studied by 1H-NMR experiments in the temperature range down to 0.5 K. (CPA)2CuBr4 is the...

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Material Type: 文書・図像類
Title: 量子スピンラダー系(CPA)2CuBr4の1Hの核磁気共鳴
Author/Editor: 藤井, 裕
佐々木, 隆暁
菊池, 彦光
千葉, 明朗
光藤, 誠太郎
山本, 良行
堀, 秀信
香取, 浩子
Author Heading: 藤井, 裕
佐々木, 隆暁
菊池, 彦光
千葉, 明朗
光藤, 誠太郎
山本, 良行
堀, 秀信
香取, 浩子
Publication Date: 2007-07
Publication Date (W3CDTF): 2007-07
Alternative Title: 1H-NMR Study of Quantum Spin-Ladder System (CPA)2CuBr4
Periodical title: 遠赤外領域開発研究
No. or year of volume/issue: 8
Volume: 8
Pages: 95-111
Text Language Code: jpn
Target Audience: 一般
Note (General): Spin dynamics on a quantum spin-ladder system (CPA)2CuBr4 was studied by 1H-NMR experiments in the temperature range down to 0.5 K. (CPA)2CuBr4 is the first model compound in which exchange interaction of the rail direction is stronger than that of rung direction. We have found an activation-type behavior of the proton relaxation rate 1/T1 at low magnetic field region, which is an evidence of the existence of the spin gap. The behavior of 1/T1 ~ T-? observed at high fields suggests a Tomonaga-Luttinger liquid state. Further decreasing temperature, 1/T1 turned to decrease below about 2 K. The specific heat measurements under the field up to 12 T suggests no long-range order down to 0.5 K. Our results are compared with other “dimer-like" quantum spin-ladder system and discussed with the H-T phase diagram.
Source: https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=27199&item_no=1&attribute_id=22&file_no=1
https://u-fukui.repo.nii.ac.jp/?action=repository_action_common_download&item_id=27199&item_no=1&attribute_id=22&file_no=1
Access Restrictions: 限定公開
Data Provider (Database): 国立情報学研究所 : 学術機関リポジトリデータベース（IRDB）（機関リポジトリ）
https://irdb.nii.ac.jp
Original Data Provider (Database): 福井大学 : 福井大学学術機関リポジトリ