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- Oak Ridge National LaboratoryUS269 papers
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17 papers · 2 filters
Nearly-Resonant Crystalline-Phononic Coupling in Quantum Spin Liquid Candidate CsYbSe
Yun-Yi Pai, Claire E. Marvinney, Liangbo Liang +10
CsYbSe, a recently identified quantum spin liquid (QSL) candidate, exhibits strong crystal electric field (CEF) excitations. Here, we identify phonon and CEF modes with Raman s…
Skyrmion Crystals in the Triangular Kondo Lattice Model
Zhentao Wang, Cristian D. Batista
We present a systematic study of the formation of skyrmion crystals in a triangular Kondo Lattice model for generic electron filling fractions. Our results indicate that the four-s…
Schwinger boson theory of ordered magnets
Shang-Shun Zhang, E. A. Ghioldi, L. O. Manuel +2
The Schwinger boson theory provides a natural path for treating quantum spin systems with large quantum fluctuations. In contrast to semi-classical treatments, this theory allows u…
Anomalous magnetic noise in imperfect flat bands in the topological magnet Dy2Ti2O7
Anjana M. Samarakoon, S. A. Grigera, D. Alan Tennant +8
The spin ice compound Dy_2Ti_2O_7 stands out as the first topological magnet in three dimensions, with its tell-tale emergent fractionalized magnetic monopole excitations. Its real…
Structural magnetic glassiness in spin ice DyTiO
Anjana M. Samarakoon, Andre Sokolowski, Bastian Klemke +14
The spin ice compound DyTiO is well-known to realise a three-dimensional Coulomb spin liquid with magnetically charged monopole excitations. Its fate at low temperature…
Dirac magnons, nodal lines, and nodal plane in elemental gadolinium
Allen Scheie, Pontus Laurell, Paul A. McClarty +4
We investigate the magnetic excitations of elemental gadolinium (Gd) using inelastic neutron scattering, showing that Gd is a Dirac magnon material with nodal lines at and noda…