Magnetic Anisotropy in Antiferromagnetic α‐(Cr1−fAlf) 2O3

摘要: In antiferromagnetic crystals the results of AFMR, when combined with other data, yield anisotropy K. By subtracting magnetic dipolar KMD from K, fine structure KFS is found. For Cr2O3, computation Tachiki and Nagamiya, 0.059 cm−1/ion, had been accepted as a basis for further analyses. However, in course computing by modern machine methods various sesquioxide antiferromagnets, we have found this value to be inappropriate. The Shull (c) which Cr2O3 belongs one geometry effectively almost cubic! computed thus sensitive small changes lattice geometry. Presently room‐temperature crystal parameters = 0.0088 ⅙ former result; consequently AFMR data reanalyzed. temperature behavior pure (Cr1−fAlf)2O3 discussed. Similar calculations made Ti, V, Fe sesquioxides. In...