Field Effects in the Ising Spin Glass Fe_<0.55>Mn_<0.45>TiO_3 : Absence of Spin-Glass Transition in a Magnetic Field

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概要

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• The temperature of onset of slow dynamics is determined from ac and dc susceptibility measurements under a magnetic bias fields for the Ising spin glass Fe_<0.55>Mn_<0.45>TiO_3. Critical dynamics is found only in zero bias field while evidence for activated dynamics is found in strong magnetic fields. These results suggest the absence of a spin-glass phase transition in a magnetic field, in accordance with the droplet picture.

• 理論物理学刊行会の論文
• 2005-04-30

著者

• Katori Hiroko

  Riken

• JONSSON Petra

  ISSP, University of Tokyo

• Jonsson Petra

  Issp University Of Tokyo

• Takayama Hajime

  ISSP, Univ. of Tokyo

• ITO Atsuko

  RIKEN

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