TY - JOUR
T1 - Observation of field-induced magnetic and structural transitions in an antiferromagnet by means of synchrotron x-rays
AU - Katsumata, Koichi
AU - Tabata, Yoshikazu
AU - Lovesey, Stephen W.
AU - Nakamura, Tetsuya
AU - Tanaka, Yoshikazu
AU - Shimomura, Susumu
AU - Narumi, Yasuo
AU - Ishikawa, Tetsuya
AU - Kitamura, Hideo
AU - Hara, Toru
AU - Tanaka, Takashi
AU - Tamasaku, Kenji
AU - Yabashi, Makina
AU - Goto, Shunji
AU - Ohashi, Haruhiko
AU - Takeshita, Kunikazu
AU - Ohata, Toru
AU - Matsushita, Tomohiro
AU - Bizen, Teruhiko
AU - Yamada, Isao
PY - 2002/9/23
Y1 - 2002/9/23
N2 - In the first experiment of its kind, we have used x-ray diffraction to study magnetic and charge properties of an antiferromagnet as a function of an applied magnetic field H. The intensity of hard x-rays diffracted at the space-group-forbidden reflection (3, 0, 0) of MnF2 with H parallel to the easy axis at H = Hc/√2 shows evidence of a spin-flop transition associated with the surface magnetization, and at Hc = 9.3 T a spin-flop transition in the bulk. Above Hc we found intensity much larger than that predicted for purely magnetic scattering. We attribute the unexpected intensity to charge scattering created by a field-induced structural phase transition.
AB - In the first experiment of its kind, we have used x-ray diffraction to study magnetic and charge properties of an antiferromagnet as a function of an applied magnetic field H. The intensity of hard x-rays diffracted at the space-group-forbidden reflection (3, 0, 0) of MnF2 with H parallel to the easy axis at H = Hc/√2 shows evidence of a spin-flop transition associated with the surface magnetization, and at Hc = 9.3 T a spin-flop transition in the bulk. Above Hc we found intensity much larger than that predicted for purely magnetic scattering. We attribute the unexpected intensity to charge scattering created by a field-induced structural phase transition.
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U2 - 10.1088/0953-8984/14/37/102
DO - 10.1088/0953-8984/14/37/102
M3 - Letter
AN - SCOPUS:18744419510
SN - 0953-8984
VL - 14
SP - L619-L623
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 37
ER -