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11 papers · 2 filters
Raman spectroscopy of optical phonon and incommensurate charge density wave modes in 2H-TaSe2 exfoliated flakes
Lin Cui, Qiaoling Huang, Gaomin Li +2
2H-TaSe2 is a model transition metal dichalcogenide material that develops charge density waves (CDWs).Here we present variable-temperature Raman spectroscopy study on both incomme…
Appearance and disappearance of ferromagnetism in ultra-thin LaMnO on SrTiO substrate: a viewpoint from first-principles
Ming An, Yakui Weng, Huimin Zhang +3
The intrinsic magnetic state (ferromagnetic or antiferromagnetic) of ultra-thin LaMnO films on the mostly used SrTiO substrate is a long-existing question under debate. Eit…
Ferroelectric Ferrimagnetic LiFeF: Charge Ordering Mediated Magnetoelectricity
Ling-Fang Lin, Qiao-Ru Xu, Yang Zhang +3
Trirutile-type LiFeF is a charge-ordered material with Fe/Fe configuration. Here its physical properties, including magnetism, electronic structure, phase tra…
Photocatalytic Behavior of Fluorinated Rutile TiO(110) Surface: Understanding from the Band Model
Huimin Gao, Daoyu Zhang, Minnan Yang +1
Surface fluorination of TiO (F-TiO) has complicate photocatalytic behavior in degradation of organic compounds. This work attempts to establish an elegant scenario based on…
Exchange striction driven magnetodielectric effect and potential photovoltaic effect in polar CaOFeS
Yang Zhang, Lingfang Lin, Jun-Jie Zhang +3
CaOFeS is a semiconducting oxysulfide with polar layered triangular structure. Here a comprehensive theoretical study has been performed to reveal its physical properties, includin…
Type-II Dirac cone and Dirac cone protected by nonsymmorphic symmetry in carbon-lithium compound (C4Li)
Armindo S. Cuamba, Pavan Hosur, Hong-Yan Lu +2
In this work, we predict a novel band structure for Carbon-Lithium(C4Li) compound using the first-principles method. We show that it exhibits two Dirac points near the Fermi level;…