Electronic states of materials investigated by alpha decay process

2013 Fiscal Year Final Research Report

• Project/Area Number: 24654113
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Japan Atomic Energy Agency
• Principal Investigator: HAGA Yoshinori 独立行政法人日本原子力研究開発機構, 原子力科学研究部門 先端基礎研究センター, 研究主幹 (90354901)
• Co-Investigator(Renkei-kenkyūsha): TATEIWA Naoyuki 独立行政法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究主幹 (50346821) ; MATSUDA Tatsuma 首都大学東京, 大学院理工学研究科, 准教授 (30370472) ; YAMAMOTO Etsuji 独立行政法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究副主幹 (50343934) ; KOURA Hiroyuki 独立行政法人日本原子力研究開発機構, 原子力科学研究部門先端基礎研究センター, 研究副主幹 (50391264) ; HOMMA Yoshiya 東北大学, 金属材料研究所, 助教 (00260448)
• Project Period (FY): 2012-04-01 – 2014-03-31
• Keywords: アルファ崩壊 / アクチノイド / 電子状態

Research Abstract

Although gamma-ray and beta-ray spectroscopy techniques are widely used as a microscopic probe for electronic state investigations, alpha-ray has not been utilized because of the radiation damage or the self-heating effect. In the present study, a technique for the possible alpha-ray spectroscopy is proposed and an apparatus for the alpha-ray detection at low-temperature was developed. The principal idea is to detect anisotropy of alpha-ray emission from the oriented nuclei at low temperature and under magnetic field. For this purpose, (1) a single crystal of actinide material has been prepared, (2) a micro calorimeter working at low temperature under magnetic field was designed and fabricated, and (3) a rotation mechanism was implemented. Using these systems, alpha-particles emitted from the single crystal sample were successfully detected.

Research Products

• [Journal Article] (2013)
  • Author(s): I. Kawasaki, S.-i. Fujimori, Y. Takeda, T. Okane, A. Yasui, Y. Saitoh, H. Yamagami, Y. Haga, E. Yamamoto and Y.Onuki
  • Journal Title: Phys Volume: Rev. B 87 Pages: 075142-1-6
  • DOI: 10.1103/PhysRevB.87.075142
  • Peer Reviewed
• [Journal Article] (2013)
  • Author(s): S. Kittaka, K. An, T. Sakakibara, Y. Haga, E. Yamamoto, N. Kimura, Y.Onuki and K. Machida
  • Journal Title: J. Phys. Soc. Jpn Volume: 82 Pages: 024707-1-5
  • DOI: 10.7566/JPSJ.82.024707
  • Peer Reviewed
• [Journal Article] (2012)
  • Author(s): Y. Haga, Y. Homma, D. Aoki, K. Nakajima, Y. Arai, T.D. Matsuda, S. Ikeda, H. Sakai, E. Yamamoto, A. Nakamura, N. Tateiwa, Y. Onuki and Z. Fisk
  • Journal Title: J. Phys. Soc. Jpn Volume: 81 Pages: SB007-1-4
  • DOI: 10.1143/JPSJS.81SB.SB007
  • Peer Reviewed
• [Journal Article] (2012)
  • Author(s): T.D. Matsuda, N. Tateiwa, E. Yamamoto, Y. Haga and Z. Fisk
  • Journal Title: J. Phys. Soc. Jpn Volume: 81 Pages: SB037-1-4
  • DOI: 10.1143/JPSJS.81SB.SB037
  • Peer Reviewed
• [Journal Article] (2012)
  • Author(s): Y.Onuki, R. Settai, T. Takeuchi, K. Sugiyama, F. Honda, Y. Haga, E. Yamamoto, T.D. Matsuda, N. Tateiwa, D. Aoki, I. Sheikin, H. Harima and H. Yamagami
  • Journal Title: J. Phys. Soc. Jpn Volume: 81 Pages: SB001-1-18
  • DOI: 10.1143/JPSJS.81SB.SB001
  • Peer Reviewed
• [Journal Article] (2012)
  • Author(s): M. Sakoda, K. Kubota, S. Tanaka, E. Matsuoka, H. Sugawara, T.D. Matsuda and Y. Haga
  • Journal Title: J. Phys. Soc. Jpn Volume: 81 Pages: SB011-1-4
  • DOI: 10.1143/JPSJS.81SB.SB011
  • Peer Reviewed
• [Journal Article] (2012)
  • Author(s): Y. Shimizu, Y. Haga, Y. Ikeda, T. Yanagisawa and H. Amitsuka
  • Journal Title: Phys Volume: Rev. Lett. 109 Pages: 217001-1-5
  • DOI: 10.1103/PhysRevLett.109.217001
  • Peer Reviewed
• [Presentation] High-quality single crystal growth and electronic state investigation of actinide intermetallic compounds (2013)
  • Author(s): Y. Haga
  • Organizer: Actinides 2013
  • Place of Presentation: Karlsruhe, Germany
  • Year and Date: 20130721-26
• [Remarks]
  • URL: http://asrc.jaea.go.jp