Excitations in a Two-Dimensional Random Antiferromagnet Rb_2Co_<0.5>Mn_<0.5>F_4

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概要

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• Magnetic excitations in a two-dimerasional rauadom, antjfe.rrontagnet Rb.Cc>(,..Ml10..F4 are studied by inelastic uaeutron scatterirag. Two well-defined bands ofexcitatiouas with localized nature are observed. These banads show no measura.blerexvormalization Ull) to 7'N. This iuacplies that each bau?d has a predominantly Coand Mn character but Mu? excitatiouas of lower band are significamatly affected byIsing nature of Co spins surrounding Mn spins.

• 社団法人日本物理学会の論文
• 1980-08-15

著者

• Shirane Gen

  Physics Department Brookhaven National Laboratory

• Ikeda Hironobu

  Department Of Physics Ochanomizu University

• Ikeda Hironobu

  Department Of Physics Faculty Of Science Ochanomizu University

• RISTE Tormod

  Physics Department,Brookhaven National Laboratory

• Riste Tormod

  Physics Department Brookhaven National Laboratory:institutt For Atomenergi

関連論文

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• Neutron Scattering Investigation of Static Critical phenomena in the Two-Dimensional Antiferromagnets:Rb_2Co_CMg_1-_cF_4
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• Ultrasonic Attenuation Study of the Order-Parameter Relaxation below the Neel Temperature in Rb_2CoF_4
• Ultrasonic Attenuation Study of Critical Fluctuations in Rb_2CoF_4 near the Neel Temperature
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• Crossing-over from the 2d-Ising to the 2d-Heisenberg System
• Inelastic Scattering of Neutrons form Random Two-Dimensional Antiferromagnets Rb_2Co_cMg_+B240F_4+B268
• Critical Heat Capacities of Two-Dimensional Ising-Like Antiferromagnets K_2CoF_4 and Rb_2CoF_4
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