TY - JOUR
T1 - Resonant and non-resonant X-ray scattering from GdB6
AU - Kuwahara, K.
AU - Yamamoto, R.
AU - Kohgi, M.
AU - Nakao, H.
AU - Ishii, K.
AU - Iwasa, K.
AU - Murakami, Y.
AU - Kunii, S.
AU - Sagayama, H.
AU - Wakabayashi, Y.
AU - Sawa, H.
PY - 2005/4/30
Y1 - 2005/4/30
N2 - We have performed resonant and non-resonant X-ray scattering on GdB6 to investigate the two successive phase transitions at TN=∼15K and T*=∼10K. Below TN, new superlattice reflection at the wave vector [141412], which is the same wave vector determined by the epithermal neutron diffraction, has been observed by X-ray scattering. In the temperature region between T* and TN, it was confirmed by the polarization analyses that the superlattice reflection is due to magnetic X-ray scattering. On the other hand, interestingly, the superlattice reflection below T* is mainly due to Thomson scattering. Unlike behavior expected from usual magnetoelastic effects, the wave vector of the lattice distortion is identical to that of the magnetic structure below T*.
AB - We have performed resonant and non-resonant X-ray scattering on GdB6 to investigate the two successive phase transitions at TN=∼15K and T*=∼10K. Below TN, new superlattice reflection at the wave vector [141412], which is the same wave vector determined by the epithermal neutron diffraction, has been observed by X-ray scattering. In the temperature region between T* and TN, it was confirmed by the polarization analyses that the superlattice reflection is due to magnetic X-ray scattering. On the other hand, interestingly, the superlattice reflection below T* is mainly due to Thomson scattering. Unlike behavior expected from usual magnetoelastic effects, the wave vector of the lattice distortion is identical to that of the magnetic structure below T*.
KW - GdB
KW - Lattice distortion
KW - Magnetic X-ray scattering
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U2 - 10.1016/j.physb.2005.01.278
DO - 10.1016/j.physb.2005.01.278
M3 - Article
AN - SCOPUS:18144375861
SN - 0921-4526
VL - 359-361
SP - 965
EP - 967
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - SPEC. ISS.
ER -