55 citations · 286 across the 16 of their papers we have counts for
16 papers
Chiral Dirac fermion in a collinear antiferromagnet
Ao Zhang, Ke Deng, Jieming Sheng +18
In a Dirac semimetal, the massless Dirac fermion has zero chirality, leading to surface states connected adiabatically to a topologically trivial surface state as well as vanishing…
Giant shifts of crystal-field excitations with temperature as consequence of internal magnetic exchange fields
Joel O'Brien, Guochu Deng, Dehong Yu +7
Crystal-field excitations, for example in transition-metal oxides where a rare-earth element is used as a spacer between the transition-metal-oxide tetrahedra and octahedra, are as…
Giant shifts of crystal-field excitations in ErFeO3 driven by internal magnetic fields
Joel O'Brien, Guochu Deng, Xiaoxuan Ma +6
Due to the complex interactions between rare-earth elements and transition metals, as well as/or themselves, rare-earth transition-metal oxides are likely to exhibit highly intrigu…
Multiplexing Capabilities of Cold-Neutron Triple-Axis Spectrometer SIKA
Guochu Deng, Peter Vorderwisch, Garry J McIntyre
SIKA, a high-flux cold-neutron triple-axis spectrometer at the OPAL reactor at the Australian Nuclear Science and Technology Organization, is equipped with a 13-blade analyser and…
Spin Dynamics and Magnetoelectric Coupling Mechanism of Co4Nb2O9
Guochu Deng, Yiming Cao, Wei Ren +10
Neutron powder diffraction experiments reveal that Co4Nb2O9 forms a noncollinear in-plane magnetic structure with Co2+ moments lying in the ab plane. The spin-wave excitations of t…
Jahn-Teller versus quantum effects in the spin-orbital material LuVO3
M. Skoulatos, S. Toth, B. Roessli +17
We report on combined neutron and resonant x-ray scattering results, identifying the nature of the spin-orbital ground state and magnetic excitations in LuVO3 as driven by the orbi…