High-field magnetism of MnSi and ZrZn2 under high pressure

  • Yamada H
  • Terao K
  • Morozumi H
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Abstract

Electronic structures of MnSi and ZrZn2 are calculated by a self-consistent linear muffin-tin orbital method within the atomic-sphere approximation. By the fixed-spin-moment calculations, the magnetic moment M is estimated as a function of magnetic field H. Fitting the calculated values of M(H) to a form of H = a(1)M + a(3)M(3) + a(3)M(5) + ..., the coefficients a(1),a(3), a(5), ... are estimated as a function of lattice constant. By using the calculated results of these coefficients and by taking into account the effect of spin fluctuations, the possibility of a metamagnetic transition and the appearance of a susceptibility maximum for MnSi and ZrZn2 under high pressures are discussed (C) 2001 Elsevier Science B.V. All rights reserved.

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Authors

  • H Yamada

  • K Terao

  • H Morozumi

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