2020年7月6日 · Here, we demonstrate that all Raman modes in the 2D ferromagnet VI 3 show different scattering intensities to left and right circularly polarized light at low temperatures, which gives direct evidence of the time-reversal symmetry breaking.

Two-dimensional (2D) ferromagnetism (FM) material is the promising candidate for the next-generation electronics, which have received a lot of attention recentl

2020年4月1日 · Monolayer VI 3 is a novel member of 2D ferromagnets. Its dynamically stable magnetic phases are distinguishable via Raman spectrum. Vanadium dopant dependent magnetism and electronic behavior in VI 3 are investigated. Strain-dependent magnetism is studied and possible magnetic phase transitions are investigated.

2022年1月1日 · To enhance its spintronic property, we modified VI 3 by interstitial doping with 3d transition metals (TM) and used first-principles calculations to investigate the geometric structure, formation energy, electronic property, and magnetism …

2020年8月12日 · Here, we demonstrate that all Raman modes in the 2D ferromagnet VI 3 show different scattering intensities to left and right circularly polarized light at low temperatures, which gives direct evidence of the time-reversal symmetry breaking.

Figure 3 shows Raman spectra of bulk VI3 measured in the back-scattering geometry at T = 300 K and 4 K. Four Raman active modes are identified at 300 K with frequencies of 48, 70, 96, and 126...

2020年5月1日 · In this paper, we have performed polarized and temperature-dependent Raman scattering measurements on VI 3. The angle-dependent Raman spectra indicate that the point group C2h remains unchanged from ∼ 10 K to 300 K, ruling out D3d symmetry.

2022年9月8日 · We use the synergy of infrared, terahertz, and Raman spectroscopies with DFT calculations to shed light on the magnetic and lattice properties of VI3. The structural transition at TS1 = 79 K is accompanied by a large splitting of polar phonon modes. Below TS1, strong ferromagnetic fluctuations are observed.

2020年7月6日 · Here we demonstrate that all Raman modes in 2D ferromagnet VI3 show different scattering intensities to the left and right circularly polarized light at low temperatures, which gives a direct...

2019年3月11日 · We report structural properties, physical properties, and the electronic structure of van der Waals (vdW) crystal VI3. Detailed analysis reveals that VI3 exhibits a structural transition from monoc...