G
Georg Ehlers
Researcher at Oak Ridge National Laboratory
Publications - 269
Citations - 8009
Georg Ehlers is an academic researcher from Oak Ridge National Laboratory. The author has contributed to research in topics: Neutron scattering & Inelastic neutron scattering. The author has an hindex of 39, co-authored 262 publications receiving 6433 citations. Previous affiliations of Georg Ehlers include University of Tennessee & Joint Institute for Nuclear Research.
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Orbitally driven giant phonon anharmonicity in SnSe
Chen Li,Jiawang Hong,Andrew F. May,Dipanshu Bansal,Songxue Chi,Tao Hong,Georg Ehlers,Olivier Delaire +7 more
TL;DR: In this article, a microscopic picture connecting electronic structure and phonon anharmonicity in SnSe is provided, and offers new insights on how electron-phonon interactions may lead to the realization of ultralow thermal conductivity.
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Giant anharmonic phonon scattering in PbTe
Olivier Delaire,Jie Ma,Karol Marty,Andrew F. May,Michael A. McGuire,Mao-Hua Du,David J. Singh,Andrey Podlesnyak,Georg Ehlers,Mark D Lumsden,Brian C. Sales +10 more
TL;DR: A combination of inelastic neutron scattering measurements and first-principles computations of the phonons identifies a strong anharmonic coupling between the ferroelectric transverse optic mode and the longitudinal acoustic modes in PbTe.
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Stripe order in the underdoped region of the two-dimensional Hubbard model
Bo-Xiao Zheng,Bo-Xiao Zheng,Chia-Min Chung,Philippe Corboz,Georg Ehlers,Mingpu Qin,Reinhard M. Noack,Hao Shi,Steven R. White,Shiwei Zhang,Garnet Kin-Lic Chan +10 more
TL;DR: In this paper, the authors combine the latest numerical methods in exhaustive simulations, uncovering the ordering in the underdoped ground state of correlated electron materials, including the high-temperature superconductors.
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Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
Joseph A. M. Paddison,Marcus Daum,Zhiling Dun,Georg Ehlers,Yaohua Liu,Matthew B. Stone,Haidong Zhou,Martin Mourigal +7 more
TL;DR: A detailed and systematic neutron-scattering study uncovers a continuum of magnetic excitations down to 0.06 K in the triangular quantum magnet YbMgGaO4, an observation consistent with quantum spin liquid behaviour.
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The new Cold Neutron Chopper Spectrometer at the Spallation Neutron Source - Design and Performance
TL;DR: In this paper, the design and performance of the new Cold Neutron Chopper Spectrometer (CNCS) at the Spallation NEutron Source in Oak Ridge are described.