Quadrupolar frustration in Shastry-Sutherland lattice of DyB4 studied by resonant X-ray scattering

Daisuke Okuyama; Takeshi Matsumura; Hironori Nakao; Youichi Murakami

doi:10.1143/JPSJ.74.2434

Quadrupolar frustration in Shastry-Sutherland lattice of DyB₄ studied by resonant X-ray scattering

Daisuke Okuyama, Takeshi Matsumura, Hironori Nakao, Youichi Murakami

Division of Inorganic Material Research

Research output: Contribution to journal › Article › peer-review

32 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	2434-2437
Number of pages	4
Journal	journal of the physical society of japan
Volume	74
Issue number	9
DOIs	https://doi.org/10.1143/JPSJ.74.2434
Publication status	Published - 2005 Sep

Keywords

DyB
Fluctuation
Geometrical frustration
Quadrupole order
Resonant X-ray scattering

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "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.",

keywords = "DyB, Fluctuation, Geometrical frustration, Quadrupole order, Resonant X-ray scattering",

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AU - Nakao, Hironori

AU - Murakami, Youichi

PY - 2005/9

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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

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KW - Geometrical frustration

KW - Quadrupole order

KW - Resonant X-ray scattering

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