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Universal $$frac{1}{3}$$-suppression of magnonic shot noise in diffusive insulating magnets

バルクマグノン流雑音抑制

仲田 光樹; 大沼 悠一*; 松尾 衛*

Nakata, Koki; Onuma, Yuichi*; Matsuo, Mamoru*

強磁性絶縁体接合系と比較し、不純物散乱をうける磁性絶縁体バルク中のマグノン流ノイズは$$frac{1}{3}$$に抑制されることを明らかにした。

Extending a Boltzmann-Langevin theory to magnons, we show a universality of current-noise suppression in diffusive systems against the difference of quantum-statistical properties of bosons and fermions.

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