TY - JOUR
T1 - Resonant X-ray scattering on antiferroquadrupolar ordering compound Dy 0.8Gd0.2B2C2
AU - Sakata, M.
AU - Tobo, A.
AU - Matsumura, T.
AU - Okuyama, D.
AU - Murakami, Y.
AU - Wakabayashi, Y.
AU - Sawa, H.
AU - Ohoyama, K.
AU - Onodera, H.
PY - 2005/4/30
Y1 - 2005/4/30
N2 - Gd substitution in DyB2C2 enhances the antiferromagnetic (AFM) interaction and weakens the antiferroquadrupolar (AFQ) interaction. In Dy0.8Gd0.2B2C2, two successive transitions occur. By performing resonant X-ray scattering measurements, we confirmed the AFQ ordering temperature TQ=18.0K and the Néel temperature TN=19.5K; TN is higher than TQ in Dy 0.8Gd0.2B2C2, in contrast to DyB2C2. There exists an AFM phase between TQ and TN, and the magnetic structure is described by k=[100]. This kind of AFM phase is also observed in HoB2C2 and TbB2C2, although the magnetic structures of these compounds are long-periodic ones.
AB - Gd substitution in DyB2C2 enhances the antiferromagnetic (AFM) interaction and weakens the antiferroquadrupolar (AFQ) interaction. In Dy0.8Gd0.2B2C2, two successive transitions occur. By performing resonant X-ray scattering measurements, we confirmed the AFQ ordering temperature TQ=18.0K and the Néel temperature TN=19.5K; TN is higher than TQ in Dy 0.8Gd0.2B2C2, in contrast to DyB2C2. There exists an AFM phase between TQ and TN, and the magnetic structure is described by k=[100]. This kind of AFM phase is also observed in HoB2C2 and TbB2C2, although the magnetic structures of these compounds are long-periodic ones.
KW - Quadrupolar ordering
KW - Resonant X-ray scattering
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U2 - 10.1016/j.physb.2005.01.273
DO - 10.1016/j.physb.2005.01.273
M3 - Article
AN - SCOPUS:18144406444
SN - 0921-4526
VL - 359-361
SP - 950
EP - 952
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
IS - SPEC. ISS.
ER -