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MAGNETIC PROPERTIES AND INVAR EFFECT OF a-TM-Zr ALLOYS

HUANG ZHI-GAO WAN JIAN-PIN

MAGNETIC PROPERTIES AND INVAR EFFECT OF a-TM-Zr ALLOYS

HUANG ZHI-GAO, WAN JIAN-PIN
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  • Received Date:  02 June 1989
  • Published Online:  20 March 2005

MAGNETIC PROPERTIES AND INVAR EFFECT OF a-TM-Zr ALLOYS

  • 1. 福建师范大学物理系,福州,350007

Abstract: In this paper, the M?ssbauer spectra of a-Fe90-xCoxZr10(x = 0,4,10,20) and Fe90-yCryZr10(y= 4,7,13,16) alloys were studied at 77K. The results indicate that two different magnetic states exist in a-Fe-(Co, Cr)-Zr alloys, the dependence of hyperfine parameters on the average outer electron concentration a of the 3d TM atom show anomalies in the vicinity of a = 8, which implies the invar effect of a-Fe90Zr10 and a-Fe-(Co, Cr)-Zr with low Ca(Cr). The reduced temperature dependence of the reduced hyperfine field reveal the existence of amorphous ferromagnetism in a-Fe90-xCoxZr10(x = 10, 20) and the spin-grass-like behavior in a-Fe90-xCoxZr10(x = 0,4). A new magnetic structure model are suggested and discussed.

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