• Corpus ID: 202541700

Multi-peak Electronic Density of States in CrBr3 Revealed by Scanning Tunneling Microscopy

  title={Multi-peak Electronic Density of States in CrBr3 Revealed by Scanning Tunneling Microscopy},
  author={Dinesh Baral and Zhuangen Fu and Andrei S. Zadorozhnyi and Rabindra Dulal and Aaron Wang and Narendra Shrestha and Uppalaiah Erugu and Jinke Tang and Yuri Dahnovsky and Jifa Tian and TeYu Chien},
  journal={arXiv: Materials Science},
CrBr3 is a layered van der Waals material with magnetic ordering down to the 2D limit. So far, the electronic properties of CrBr3 are relatively unexplored. Here, we present the scanning tunneling microscopy and spectroscopy (STM/S) results of the CrBr3 thin flakes exfoliated onto a Highly Ordered Pyrolytic Graphite (HOPG) surfaces. Atomic resolution topography images show the crystal structure and the dI/dV spectra exhibit multiple peak features measured at 77 K. The conduction band - valence… 
1 Citations

Figures and Tables from this paper

Two-fold symmetric superconductivity in few-layer NbSe2
Two-dimensional transition metal dichalcogenides (TMDs) have been attracting significant interest due to a range of properties, such as layer-dependent inversion symmetry, valley-contrasted Berry


Direct observation of van der Waals stacking–dependent interlayer magnetism
Stacking-dependent interlayer magnetism in the two-dimensional magnetic semiconductor chromium tribromide (CrBr3), which was enabled by the successful growth of its monolayer and bilayer through molecular beam epitaxy, is observed.
Optical and electron energy loss experiments in ionic CrBr3 crystals
The fundamental reflectance of CrBr3 crystals has been measured over the energy range 2-31 eV from 300 to 30 K using synchrotron radiation. The high-frequency dielectric tensor elements epsilon
The enhanced ferromagnetism of single-layer CrX3 (X = Br and I) via van der Waals engineering.
This work demonstrates that the TC and magnetic moment of CrX3 can be enhanced simultaneously by coupling them to buckled two-dimensional Mene to form magnetic van der Waals (vdW) heterostructures, and suggests that vdW engineering may be an efficient way to tune the magnetic properties of 2D magnets.
Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit
Since the discovery of graphene, the family of two-dimensional materials has grown, displaying a broad range of electronic properties. Recent additions include semiconductors with spin–valley
Electronic structure and magnetic ordering of the semiconducting chromium trihalides CrCl3, CrBr3, and CrI3.
The results show that a low temperature structural phase transition from monoclinic to trigonal is energetically favourable for CrCl(3), and it is observed that the ground state depends critically on the specific approach used.
Robust intrinsic ferromagnetism and half semiconductivity in stable two-dimensional single-layer chromium trihalides
Two-dimensional (2D) intrinsic ferromagnetic (FM) semiconductors are crucial to develop low-dimensional spintronic devices. Using density functional theory, we show that single-layer chromium
Crystal‐Field Spectra of d3,7 Ions. I. Electronic Absorption Spectrum of CoCl4= in Three Crystalline Environments
The electronic absorption spectrum of the CoCl4= complex ion has been studied in crystals of the type R2CoCl4, where R is Cs, N(CH3)4, or quinolinium ion. The measurements have been made with single
Direct Photoluminescence Probing of Ferromagnetism in Monolayer Two-Dimensional CrBr3.
The intrinsic ferromagnetism in atomically thin monolayer CrBr3 is reported, directly probed by polarization resolved magneto-photoluminescence and attribute the layer-number-dependent hysteresis loops in thick layers to the magnetic domain structures.
Magneto‐Optical Studies of Chromium Tribromide
Chromium tribromide is one of the few ionic ferromagnetic crystals known. It has a hexagonal layer structure, and its Curie point is at about 36°K. Thin sections are transparent from the near
Electronic structure of CrBr 3 studied by x-ray photoelectron spectroscopy
The electronic structure of high-spin ${\mathrm{CrBr}}_{3}$ has been investigated by using x-ray photoelectron and electron energy-loss spectroscopy. Valence-band and $\mathrm{Cr}2p$ core-level