Observation of field-induced magnetic and structural transitions in an antiferromagnet by means of synchrotron x-rays
作者： Koichi Katsumata , Yoshikazu Tabata , Stephen W Lovesey , Tetsuya Nakamura , Yoshikazu Tanaka
DOI: 10.1088/0953-8984/14/37/102
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摘要: In the first experiment of its kind, we have used x-ray diffraction to study magnetic and charge properties an antiferromagnet as a function applied field H. The intensity hard x-rays diffracted at space-group-forbidden reflection (3, 0, 0) MnF2 with H parallel easy axis = Hc /√2 shows evidence spin-flop transition associated surface magnetization, 9.3 T in bulk. Above found much larger than that predicted for purely scattering. We attribute unexpected scattering created by field-induced structural phase transition.
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