Mossbauer Study of Fe_<1-x>Cr_x Alloys

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概要

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• The internal field H... at "Fe nuclei in Fe.=.Cr. alloys has been measured at4.2 K and 1.7 K in the concentration range 0<,v<0.96 by means of the M6ssbauereffect. In the concentration range 0<,r<0.93, Hg.. varies almost linearly withincreasing x from the value 340 k0e at x=0 to 120 k0e at .X'=0.93. As for alloysFeg.),Crg.., and Feg.j 3Crg.., the temperature dependence of the internal fieldhas been examined from 300 to 4.2 K. In each of both alloys, the field vs tempera-ture curve shows two plateaus around 40 K and 4 K, having respectively valuesof 35 and 120 k0e. This suggests that the magnetic moments of Fe in the alloysthermally fluctuate above 30 K, and the observed field of 35 k0e is mainly as-cribed to the magnetic moments of Cr ordered in an antiferromagnetic state,while the magnetic moments of Fe become ordered below 30 K, producing thelarger internal field of about 120 k0e at 4.2 K.

• 社団法人日本物理学会の論文
• 1977-01-15

著者

• KUWANO Hisashi

  Muroran Institute of Technology

• Ono Kazuo

  Institute For Solid State Physics The University Of Tokyo

• ONO Kazo

  Institute for Solid State Physics,The University of Tokyo

• Ono Kazo

  Institute For Solid State Physics The University Of Tokyo

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