Electronic states of materials investigated by alpha decay process

通过α衰变过程研究材料的电子态

• 批准号: 24654113
• 负责人: HAGA Yoshinori
• 金额: $ 2.33万
• 依托单位: Japan Atomic Energy Agency
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Challenging Exploratory Research
• 财政年份: 2012
• 资助国家: 日本
• 起止时间: 2012-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-24654113/
• 关键词: アルファ崩壊; アクチノイド; 電子状態

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.

尽管γ射线和β射线光谱技术被广泛用作电子状态研究的显微探针，但由于辐射损伤或自热效应，α射线尚未被利用。 在本研究中，提出了一种可能的α射线光谱技术，并在低温下的α射线检测装置的开发。 其主要思想是在低温和磁场下探测取向核的α射线发射的各向异性。 为此，（1）制备了锕系元素单晶，（2）设计并制作了在磁场下低温工作的微量热计，（3）实现了旋转机构。 使用这些系统，从单晶样品发射的α粒子被成功地检测到。

项目成果

Band structure and Fermi surface of UPd3 studied by soft x-ray angle-resolved photoemission spectroscopy

软X射线角分辨光电子能谱研究UPd3的能带结构和费米面

• DOI: 10.1103/physrevb.87.075142
• 发表时间: 2013
• 期刊: Phys. Rev. B
• 作者: K. Kudo;M. Takasuga;Y. Okamoto;Z. Hiroi;and M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;野原実;野原実;M. Nohara;M. Nohara;野原実;kuto Kawasaki
• 通讯作者: kuto Kawasaki

Growth and Unique Electronic States under Magnetic Field and Pressure in Rare Earth and Actinide Compounds

稀土和锕系化合物在磁场和压力下的生长和独特电子态

• DOI: 10.1143/jpsjs.81sb.sb001
• 发表时间: 2012
• 期刊: J. Phys. Soc. Jpn.
• 作者: K. Kudo;M. Takasuga;Y. Okamoto;Z. Hiroi;and M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;野原実;野原実;M. Nohara;M. Nohara;野原実;kuto Kawasaki;Shunichiro Kittaka;Y. Haga;T.D. Matsuda;Y. Onuki
• 通讯作者: Y. Onuki

Single Crystal Growth and Transport Properties of RRu2Al10 (R=La and Pr)

RRu2Al10（R=La 和 Pr）的单晶生长和输运特性

• DOI: 10.1143/jpsjs.81sb.sb011
• 发表时间: 2012
• 期刊: J. Phys. Soc. Jpn.
• 作者: K. Kudo;M. Takasuga;Y. Okamoto;Z. Hiroi;and M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;野原実;野原実;M. Nohara;M. Nohara;野原実;kuto Kawasaki;Shunichiro Kittaka;Y. Haga;T.D. Matsuda;Y. Onuki;M. Sakoda
• 通讯作者: M. Sakoda

Single Crystal Growth and Magnetic Anisotropy of Hexagonal PuGa3

六方PuGa3单晶生长及磁各向异性

• DOI: 10.1143/jpsjs.81sb.sb007
• 发表时间: 2012
• 期刊: J. Phys. Soc. Jpn.
• 作者: K. Kudo;M. Takasuga;Y. Okamoto;Z. Hiroi;and M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;野原実;野原実;M. Nohara;M. Nohara;野原実;kuto Kawasaki;Shunichiro Kittaka;Y. Haga
• 通讯作者: Y. Haga

High-Quality Single Crystal Growth and Superconducting Properties in Actinide Heavy Fermion Materials

锕系重费米子材料的高质量单晶生长和超导性能

• 作者: K. Kudo;M. Takasuga;Y. Okamoto;Z. Hiroi;and M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;M. Nohara;野原実;M. Nohara;野原実;野原実;M. Nohara;M. Nohara;野原実;kuto Kawasaki;Shunichiro Kittaka;Y. Haga;T.D. Matsuda;Y. Onuki;M. Sakoda;Y. Shimizu;T. Sakakibara;J. Gouchi;Y. Machida;Y. Haga;Yoshinori Haga
• 通讯作者: Yoshinori Haga