TY - JOUR
T1 - Quadrupolar frustration in Shastry-Sutherland lattice of DyB4 studied by resonant X-ray scattering
AU - Okuyama, Daisuke
AU - Matsumura, Takeshi
AU - Nakao, Hironori
AU - Murakami, Youichi
PY - 2005/9
Y1 - 2005/9
N2 - We have observed geometrical frustration of quadrupolar and magnetic moments in dysprosium tetraboride, DyB4, where the rare-earth sites form a Shastry-Sutherland lattice. Resonant X-ray scattering at the L III absorption edge of Dy was utilized. Analysis of the energy, polarization, temperature, and azimuthal-angle dependences of the E1 resonance of the (1 0 0) forbidden reflection show that the magnetic and quadrupolar components within the frustrated c plane have a short-range correlation, suggesting that the moments are fluctuating. In contrast, the basic antiferromagnetic component along the c-axis has a long-range order.
AB - We have observed geometrical frustration of quadrupolar and magnetic moments in dysprosium tetraboride, DyB4, where the rare-earth sites form a Shastry-Sutherland lattice. Resonant X-ray scattering at the L III absorption edge of Dy was utilized. Analysis of the energy, polarization, temperature, and azimuthal-angle dependences of the E1 resonance of the (1 0 0) forbidden reflection show that the magnetic and quadrupolar components within the frustrated c plane have a short-range correlation, suggesting that the moments are fluctuating. In contrast, the basic antiferromagnetic component along the c-axis has a long-range order.
KW - DyB
KW - Fluctuation
KW - Geometrical frustration
KW - Quadrupole order
KW - Resonant X-ray scattering
UR - http://www.scopus.com/inward/record.url?scp=25144463950&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=25144463950&partnerID=8YFLogxK
U2 - 10.1143/JPSJ.74.2434
DO - 10.1143/JPSJ.74.2434
M3 - Article
AN - SCOPUS:25144463950
VL - 74
SP - 2434
EP - 2437
JO - Journal of the Physical Society of Japan
JF - Journal of the Physical Society of Japan
SN - 0031-9015
IS - 9
ER -