Spectral properties of Co-decorated quasi 2-dimensional GaSe layer
arXiv:2004.08089 · doi:10.1103/PhysRevB.102.075309
Abstract
Based on reliable computations and the numerical renormalization group method, systematic studies on a two-dimensional GaSe monolayer with a Co adatom have been carried out. It is shown that the stable lowest-energy configuration of the system involves the Co adatom located over Ga atom. For such configuration, it is demonstrated that the electronic and magnetic properties of the system can be effectively controlled by means of external factors, such as magnetic field, gate voltage or temperature. Moreover, if properly tuned, the GaSe-Co system can also exhibit the Kondo effect. The development of the Kondo phenomenon is revealed in the local density of states of the Co adatom, its magnetic field dependence, which presents the splitting of the Kondo peak, as well as in the temperature dependence of the conductance, which exhibits scaling typical of the spin one-half Kondo effect.
arXiv comment6 pages, 6 figures
References in corpus (16)
- 2D materials and van der Waals heterostructures
- Kondo Physics in a Single Electron Transistor
- The numerical renormalization group method for quantum impurity systems
- Tunable Magnetism and Half-Metallicity in Hole-doped Monolayer GaSe
- Theory of the Fano Resonance in the STM Tunneling Density of States due to a Single Kondo Impurity
- Gate-Controlled Ionization and Screening of Cobalt Adatoms on a Graphene Surface
- Band Structure and Optical Transitions in Atomic Layers of Hexagonal Gallium Chalcogenides
- Orbitally controlled Kondo effect of Co ad-atoms on graphene
- Tunable Quasiparticle Band Gap in Few Layer GaSe/graphene Van der Waals Heterostructures
- Prediction of a quantum anomalous Hall state in Co decorated silicene
- Observation of the Kondo Screening Cloud of Micron Lengths
- Manual for the Flexible DM-NRG code
- Kondo effect of cobalt adatom on zigzag graphene nanoribbon
- Detecting Kondo Entanglement by Electron Conductance
- Probing the Rashba effect via the induced magnetization around a Kondo impurity
- Spectral properties and the Kondo effect of cobalt adatoms on silicene