NMR-ON Studies of the Magnetic Hyperfine Field at ^<140>La in Fe

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概要

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• Nuclear magnetic resonance on oriented nuclei (NMR-ON) of La existing as a dilute impurity in Fe was observed for the first time. NMR-ON experiments were performed by detecting the 1596keV γrays from the βdecay of ^<140>La in external magnetic fields of 0.1,0.2,0.4 and 0.6T. From the external magnetic-field dependence of the resonance frequency, the magnetic hyperfine field and the Knight shift were deduced to be B_<hf> = -47 ± 1T and K = -4.0 ± 3.4% respectively. The effective relaxation time of ^<140>LaFe at 8mK in an external magnetic field of 0.2T was determined to be 8.8 ± 1.5min using a single-exponential fit. The present value of the magnetic hyperfine field agrees with that deduced from a two-site model by the low-temperature nuclear orientation method.

• 社団法人日本物理学会の論文
• 2003-03-15

著者

• 武藤 俊介

  大阪大学教養部

• OHKUBO Yoshitaka

  Research Reactor Institute, Kyoto University

• Muto S

  Fujitsu Laboratories Ltd.

• Kobayashi Y

  Kyoto Univ. Kumatori Jpn

• Goto Jun

  東京大学 医学系研究科漢方生体防御機能学講座

• Muto S

  Kek Ibaraki

• TANIGAKI Minoru

  Research Reactor Institute, Kyoto University

• Kawase Yoichi

  Research Reactor Institute, Kyoto University

• Kawase Y

  Kyoto Univ. Osaka

• Kawase Y

  Research Reactor Institute Kyoto University

• TANIGUCHI Akihiro

  Research Reactor Institute, Kyoto University

• NISHIMURA Katsuhiko

  Faculty of Engineering, University of Toyama

• Kawamura Yoshie

  Research Reactor Institute Kyoto University

• Kawase Yoichi

  Reseach Reactor Institute Kyoto University

• GOTO Jun

  Guraduate School of Science, Kyoto University

• OHYA Susumu

  Faculty of Science, Niigata University

• OHTSUBO Takashi

  Faculty of Science, Niigata University

• MUTO Suguru

  Neutron Science Laboratory, KEK

• Goto J

  Guraduate School Of Science Kyoto University

• Goto Jun

  Department Of Neurology Graduate School Of Medicine The University Of Tokyo

• Ohya S

  Faculty Of Science Niigata University

• Taniguchi Akihiro

  Research Reactor Institute Kyoto University

• Tanigaki Minoru

  Research Reactor Institute Kyoto University

• Nishimura K

  Faculty Of Engineering Toyama University

• Taniguchi A

  Research Reactor Institute Kyoto University

• Ohkubo Y

  Research Reactor Institute Kyoto University

• Ohkubo Yoshitaka

  Research Reactor Institute Kyoto University

• Goto Jun

  Department Of Material Physics Faculty Of Engineering Science Osaka University

• Ohtsubo T

  Faculty Of Science Niigata University

• Nishimura Katsuhiko

  Faculty Of Engineering Toyama University

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