Magnetic Properties of an Icosahedral Phase of Ga-Mg-Zn Alloy

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概要

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• Magnetic properties of two kinds of Ga-Mg-Zn alloy samples were studied. One is Ga_<20>Mg_<40>Zn_<40> icosahedral phase which was thermally stable below about 615K, the other is Ga_<18.5>Mg_<41.5>Zn_<40> alloy which exhibited amorphous-like X-ray diffraction pattern with no sharp peaks. The icosahedral phase showed a linear relationship between the magnetic susceptibility and the square of temperature. The improvement of the specimen quality resulting from heat treatment made the temperature dependence enhanced and the paramagnetism reduced. The amorphous-like sample did not show the temperature dependence of the magnetic susceptibility. These facts afford the experimental evidence that, in terms of Pauli paramagnetism, the electronic density of states at Fermi level of the icosahedral phase is strongly affected by the band-structure originating from the quasiperiodicity.

• 社団法人日本物理学会の論文
• 1993-02-15

著者

• Ishimasa Tsutomu

  Physics Department, College of General Education, Nagoya University

• Saito Kaichi

  Deparment Of Materials Science And Engineerling Faculty Of Engineering And Resource Science Akita Un

• Matsuo S

  Hiroshima Univ. Higashi‐hiroshima

• Matsuo Susumu

  Physics Laboratory College Of General Education Nagoya University

• Motomura Senni

  Department Of Natural Science Informatics School Of Informatics And Sciences Nagoya University

• Ishimasa T

  Hokkaido Univ. Sapporo Jpn

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