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Towards the First Realization of Weyl Magnons in the Non-Coplanar Antiferromagnet MnTe
Ahmed E. Fahmy, Archibald J. Williams, Yufei Li +9
Using a combination of band representation analysis, inelastic neutron scattering (INS), magneto-Raman spectroscopy measurements, and linear spin wave theory, we establish that the…
Strong Raman Optical Activity and Chiral Phonons in Chiral Hybrid Organic-Inorganic Perovskites
Evan W. Muller, Aleksey Ruditskiy, Jie Jiang +6
Hybrid organic-inorganic perovskites with chiral organic cations are very interesting for optoelectronic applications because of their intrinsically chiral light-matter interaction…
Spin-lattice entanglement in
Thuc T. Mai, Amber McCreary, K. F. Garrity +12
Complex chalcogenides in the PS family of materials ( = Mn, Fe, Co, and Ni) display remarkably different phase progressions depending upon the metal center orbital fillin…
Accurate Angle-Resolved Raman Spectroscopy Methodology: Quantifying the Dichroic Edge Filter Effect
Tehseen Adel, Maria F. Munoz, Thuc T. Mai +5
Angle-resolved Raman spectroscopy (ARRS) is an effective method to analyze the symmetry of phonons and other excitations in molecules and solid-state crystals. While there are seve…
Anomalous Raman scattering in layered AgCrPSe: Helical modes and excitation energy-dependent intensities
Rahul Rao, Jie Jiang, Ruth Pachter +9
Structural anisotropy in layered two-dimensional materials can lead to highly anisotropic optical absorption which, in turn, can profoundly a^ect their phonon modes. These e^ects i…