Magnetic diffuse scattering of the triangular lattice antiferromagnet YbMgGaO<sub>4</sub>

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APS March Meeting 2018

Volume 63, Number 1

Monday–Friday, March 5–9, 2018; Los Angeles, California

Session R24: 2D Frustrated Spin Systems: YbMgGaO₄ and Kagome

8:00 AM–11:00 AM, Thursday, March 8, 2018
LACC Room: 403A

Sponsoring Units: GMAG DMP
Chair: Martin Mourigal, Georgia Inst of Tech

Abstract ID: BAPS.2018.MAR.R24.3

Abstract: R24.00003 : Magnetic diffuse scattering of the triangular lattice antiferromagnet YbMgGaO₄

8:24 AM–8:36 AM

Abstract

Presenter:

Marcus Daum
(School of Physics, Georgia Institute of Technology)

Authors:

Marcus Daum
(School of Physics, Georgia Institute of Technology)

Joseph Paddison
(School of Physics, Georgia Institute of Technology)

Zhiling Dun
(School of Physics, Georgia Institute of Technology)

Vasile Garlea
(Neutron Scattering Division, Oak Ridge National Lab)

Yaohua Liu
(Neutron Scattering Division, Oak Ridge National Lab)

Haidong Zhou
(Department of Physics and Astronomy, University of Tennessee Knoxville)

Martin Mourigal
(School of Physics, Georgia Institute of Technology)

YbMgGaO₄, a rare-earth S=1/2 triangular lattice antiferromagnet, has been to focus of recent studies with debate from several different groups about the origin of seemingly spin-liquid behavior. The interplay of strong spin-orbit coupling and site disorder of interplane Mg2+ and Ga3+ leads to interesting magnetic diffuse scattering signatures and lack of long range magnetic ordering even down to tens of mK. In this talk, I will present recent neutron scattering data measured at Oak Ridge National Laboratory on single crystals of YbMgGaO₄ using polarized neutrons on HYSPEC and diffuse scattering on CORELLI. These results will be compared to different exchange models proposed for this topical material.

To cite this abstract, use the following reference: http://meetings.aps.org/link/BAPS.2018.MAR.R24.3

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Bulletin of the American Physical Society

APS March Meeting 2018

Volume 63, Number 1

Monday–Friday, March 5–9, 2018; Los Angeles, California

Session R24: 2D Frustrated Spin Systems: YbMgGaO4 and Kagome

Abstract: R24.00003 : Magnetic diffuse scattering of the triangular lattice antiferromagnet YbMgGaO4

Presenter:

Authors:

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Session R24: 2D Frustrated Spin Systems: YbMgGaO₄ and Kagome

Abstract: R24.00003 : Magnetic diffuse scattering of the triangular lattice antiferromagnet YbMgGaO₄