Field-driven successive phase transitions and magnetic excitations of spin-1/2 frustrated antiferromagnet Ba2CoTeO6

• Material Type: 博士論文
• Title: Field-driven successive phase transitions and magnetic excitations of spin-1/2 frustrated antiferromagnet Ba2CoTeO6
• Author/Editor: CHANLERT, Purintorn; Chanlert, Purintorn
• Author Heading: CHANLERT, Purintorn; Chanlert, Purintorn
• Publication Date: 2017-09
• Publication Date (W3CDTF): 2017-09
• Degree grantor/type: 東京工業大学
• Date Granted: 2017-09-20
• Date Granted (W3CDTF): 2017-09-20
• Dissertation Number: 甲第10674号
• Degree Type: 博士(学術)
• Conferring No. (Dissertation): 甲第10674号
• Text Language Code: eng
• Subject Heading: Heisenberg TLAF, Ising J1-J2 HLAF, frustration in magnets, Ba2CoTeO6
• Target Audience: 一般
• Note (General): Ba2CoTeO6 is a perovskite type compound, in which the magnetic ion Co2+ possesses the effective spin-1/2 at low temperatures. Magnetic properties of Ba2CoTeO6 have been investigated using single crystals. High-field magnetization and specific heat measurements reveal that Ba2CoTeO6 is composed of two subsystems, (A) S=1/2 Heisenberg-like triangular lattice antiferromagnet with TN2=2.9 K and (B) J1-J2 Ising-like honeycomb lattice antiferromagnet with TN1=11.9 K, and that the interaction between these two subsystems are very weak. We also performed electron spin resonance (ESR) measurement for H; c at 1.5 K (< TN2) and observed several ESR modes, which include the collective excitations in subsystem A and the localized excitations in subsystem B. From these measurements, magnetic parameters of Ba2CoTeO6 were determined.; identifier:oai:t2r2.star.titech.ac.jp:50384177
• Persistent ID (NDL): info:ndljp/pid/11194427; https://dl.ndl.go.jp/pid/11194427
• Collection: 障害者向け資料
• Collection (Materials For Handicapped People:1): テキストデータ
• Collection (particular): 国立国会図書館デジタルコレクション > デジタル化資料 > 博士論文; https://dl.ndl.go.jp/collections/A00014
• Acquisition Basis: 博士論文（自動収集）
• Date Accepted (W3CDTF): 2018-12-03T16:15:19+09:00
• Date Created (W3CDTF): 2017-08-22
• Format (IMT): application/pdf
• Access Restrictions: 国立国会図書館内限定公開
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• Periodical Title (URI): http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100749911
• Data Provider (Database): 国立国会図書館 : 国立国会図書館デジタルコレクション; https://dl.ndl.go.jp

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