Magnetic Resonance in the Spiral Phase of Polycrystalline MnAu_2 at 20-26 GHz

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概要

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• Microwave absorption has been studied at 20-26 Ghz in polycrystalline MnAu_2 over a temperature range of 5-440 K and in magnetic fields up to 20 kOe. MnAu_2 has planar spiral magnetic ordering below a Neel temperature of T_N=363 K. Paramagnetic resonances was observed above T_N. Although theory predicts no low frequency resonance in the spiral magnetic phase below T_N, two distinct absorption peaks were observed and studied as functions of frequency, polarization, magnetic field, and temperature. One set of resonances is consistent with paramagnetic resonance of a postulated disordered spin component in the spiral phase of MnAu_2. Possible explanations for the second resonance are discussed. A possible resonance in the fieldinduced fan phase of MnAu_2 was also observed.

• 社団法人日本物理学会の論文
• 1972-06-05

著者

• Stanford J.

  Institute For Atomic Research And Department Of Physics Iowa State University

• Hart L.

  Institute For Atomic Research And Department Of Physics Iowa State University

• Hart L.W.

  Institute for Atomic Research and Department of Physics, Iowa State University

関連論文

• Magnetic Resonance in the Spiral Phase of Polycrystalline MnAu_2 at 20-26 GHz

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