^<161>Dy and ^<155>Gd Mossbauer Spectroscopy of the RTC_2 Intermetallics (R=Dy, Gd ; T=Ni, Co)

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• ^<161>Dy and ^<155>Gd Mossbauer spectroscopic studies on DyCoC_2, DyNiC_2, GdCoC_2 and GdNiC_2 which were performed in order to obtain microscopic information on magnetic properties are reviewed. The experiments were done using the standard ^<161>Tb and ^<155>Eu Mossbauer sources prepared by neutron irradiation at the Japan Material Testing Reactor. A simple ferromagnetic DyCoC_2 is a good object to compare the magnetic hyperfine field with the magnetic moment determined precisely by the magnetizatiom measurement of the single crystalline sample. DyNiC_2 is an antiferromagnet with commensurate magnetic structure and incommesurate moment-modulation structure. The magnetic hyperfine field changes correspondently well with the both magnetic structures. It is exhibited that the ^<155>Gd Mossbauer spectroscopy is very useful to determine the moment direction in the Gd compounds which are rarely investigated by neutron diffraction because of large neutron absorption cross section of the natural Gd nuclei. The crystalline electric field parameter A^0_2 determined from the quadrupole interaction acting on Gd is also useful to interpret the magnetic anisotropy of the other rare earth atoms in the isostructural compounds.DyCoC_2DyNiC_2GdCoC_2GdNiC_2Mossbauer effect^<161>Dy^<155>Gdhyperfine fieldcrytal fleid

• 東北大学の論文
• 1997-03-28

著者

• Kosaka Masashi

  Institute For Materials Research Tohoku University

• Kosaka Masashi

  Department Of Physics Saitama University

• YAMAGUCHI Yasuo

  Institute for Materials Research, Tohoku University

• ONODERA Hideya

  Institute for Materials Research, Tohoku University

• Kobayashi Hisao

  Department Of Physics Graduate School Of Science Tohoku University

• Kosaka M

  Saitama Univ. Saitama

• Yamaguchi Y

  Tohoku Univ. Sendai

• Yamaguchi Y

  Kumamoto Techno Res. Park Kumamoto Jpn

• OHASHI Masayoshi

  Institute for Materials Research,Tohoku University

• Onodera Hideya

  Institute For Materials Research

• Yamaguchi Yasuo

  Institute For Materials Research Tohoku University

• Ohashi M

  Tohoku Univ. Sendai Jpn

• Ohashi Masayoshi

  Kddi R&d Laboratories

• Amanai Hidetaka

  Institute for Materials Research, Tohoku University

• Matsuo Satoru

  Institute for Materials Research, Tohoku University

• Kosaka Masashi

  Institute For Materials Research

• Ohashi M

  Institute For Materials Research Tohoku University

• Ohashi M

  Tohoku Univ. Sendai

• Ohashi M

  Yamagata Univ. Yamagata

• Yamaguchi Y

  Central Workshop Osaka University

• Kadowaki H

  Tokyo Metroporitan Univ. Tokyo

• Kadowaki Hiroaki

  Department Of Physics Tokyo Metroporitan University

• Kobayashi H

  Tohoku Univ. Sendai‐shi Jpn

• Kobayashi H

  Inst. Molecular Sci. Aichi

• Kobayashi Hisao

  Department Of Physics Tohoku University

• Kamimura Hirohiko

  Department Of Materials Science Hiroshima University

• Kato Hideyuki

  Department Of Physics Faculty Of Science Hokkaido University

• Ohashi Masanao

  Faculty Of Engineering Utsunomiya University

• Matsuo Satoru

  Institute For Materials Research Tohoku University:(present Address)mitsubishi Electric Corporation

• Amanai Hidetaka

  Institute For Materials Research Tohoku University:(present Address)mitsubish Kasei Corporation

• Ohashi Masayoshi

  Institute For Material Research Tohoku University

• Kurai Hiroyuki

  Department Of Organic And Polymeric Materials Tokyo Institute Of Technology

• Kobayashi Hisao

  Department of Physics, Tohoku University

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