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Gou Cheng Zhang Baisheng Cheng Zhixu Cheng Yufen Du Honglin Sun Kai (China Institute of Atomic Energy, P.O.Box 275 30, Beijing, 102413). NEUTRON DIFFRACTION STUDIES OF THE MAGNETIC STRUCTURE OF RARE EARTH IRON RICH PERMANENT MAGNETIC ALLOYS AND THE CRYSTALLOGRAPHIC STRUCTURE OF D(H)LAP[J]. Atomic Energy Science and Technology, 1999, 33(6): 515-515. DOI: 10.7538/yzk.1999.33.06.0515
Citation: Gou Cheng Zhang Baisheng Cheng Zhixu Cheng Yufen Du Honglin Sun Kai (China Institute of Atomic Energy, P.O.Box 275 30, Beijing, 102413). NEUTRON DIFFRACTION STUDIES OF THE MAGNETIC STRUCTURE OF RARE EARTH IRON RICH PERMANENT MAGNETIC ALLOYS AND THE CRYSTALLOGRAPHIC STRUCTURE OF D(H)LAP[J]. Atomic Energy Science and Technology, 1999, 33(6): 515-515. DOI: 10.7538/yzk.1999.33.06.0515
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NEUTRON DIFFRACTION STUDIES OF THE MAGNETIC STRUCTURE OF RARE EARTH IRON RICH PERMANENT MAGNETIC ALLOYS AND THE CRYSTALLOGRAPHIC STRUCTURE OF D(H)LAP

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    • Abstract
  • The crystallographic and magnetic structure of Ho 2Fe 9Ga 8- x Al x ( x =2,4) and PrFe 10.5 Mo 1.5 N x compounds are studied by powder neutron diffraction. The atom fractional occupancies of Ga, Al, Mo and N and the atom magnetic moments of Ho, Fe and Pr are obtained by Rietveld analysis program. For Ho 2Fe 9Ga 8- x Al x ( x =2,4), the magnetic moments of the phase with the x =2,4 at 50 K and x =2 at 300 K show uniaxial magnetic anisotropy. PrFe 10.5 Mo 1.5 N x compound exhibits easy axis magnetic anisotropy, but the anisotropy of PrFe 10.5 Mo 1.5 is easy planar. The crystal structure of D(H)LAP is determined by single crystal neutron diffraction. The results indicate that the deuteriums occupy hydrogen positions except those hydrogen atoms bonded to carbon atoms.
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