TY - JOUR
T1 - Valence ordering in the intermediate-valence magnet YbPd
AU - Takahashi, Ryo
AU - Honda, Takashi
AU - Miyake, Atsushi
AU - Kagayama, Tomoko
AU - Shimizu, Katsuya
AU - Ebihara, Takao
AU - Kimura, Tsuyoshi
AU - Wakabayashi, Yusuke
PY - 2013/8/19
Y1 - 2013/8/19
N2 - An x-ray diffraction study reveals the valence-ordering structure in an intermediate-valence magnet YbPd with a CsCl structure. The valence of the Yb ions forms an incommensurate structure, characterized by the wave vector (±0.07 ±0.07 1/2) below 130 K. At 105 K, the incommensurate structure turns into a commensurate structure, characterized by the wave vector (0 0 1/2). Based on the resonant x-ray diffraction spectra of the superlattice reflections, the valences of the Yb ions below 105 K are found to be 3+ and 2.6+. The origin of the long-wavelength modulation is discussed with the aid of an Ising model having next-nearest-neighbor interaction.
AB - An x-ray diffraction study reveals the valence-ordering structure in an intermediate-valence magnet YbPd with a CsCl structure. The valence of the Yb ions forms an incommensurate structure, characterized by the wave vector (±0.07 ±0.07 1/2) below 130 K. At 105 K, the incommensurate structure turns into a commensurate structure, characterized by the wave vector (0 0 1/2). Based on the resonant x-ray diffraction spectra of the superlattice reflections, the valences of the Yb ions below 105 K are found to be 3+ and 2.6+. The origin of the long-wavelength modulation is discussed with the aid of an Ising model having next-nearest-neighbor interaction.
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U2 - 10.1103/PhysRevB.88.054109
DO - 10.1103/PhysRevB.88.054109
M3 - Article
AN - SCOPUS:84883157959
VL - 88
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
SN - 0163-1829
IS - 5
M1 - 054109
ER -