Random Spin in Long Range Ordering Antiferromagnet -Proton NMR in Random Mixture Co₁-xMnxCl₂·2H₂O

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  • 反強磁性長距離秩序スピンの中のランダムスピン ー化合物混晶 Co₁-xMnxCl₂·2H₂OにおけるプロトンNMRー
  • ハン キョウジセイ チョウキョリ チツジョ スピン ノ ナカ ノ ランダム ス
  • ハンキョウジセイ チョウキョリ チツジョ スピン ノ ナカ ノ ランダム スピン ― カゴウブツ コンショウ Co₁-xMnxCl₂·2H₂OニオケルプロトンNMRー

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In the reentrant spin glass phase of the mixture Co1_xMnぶl2 ·2H心long range order spins coexist with random spins. Proton NMR spectra due to the long range order spins show the inhomogeneous broadening. The broadening is well understood by the random mixing of disordered flopping spins in the long range order. The concentration of the random spin depends on both temperature and Mn concentration. When temperature is decreased, the random disordered spins appear at about O.ST N and increase by decreasing temperature. The concentration of the random flopping spin is maximum at about x = 0.6. At about lK, the concentration of disordered spin is about 20%.

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