Chiral magnetic chemical bonds in molecular states of impurities in Weyl semimetals
arXiv:1902.04958 · doi:10.1038/s41598-019-44842-8
Abstract
We demonstrate that chirality of the electron scattering in Weyl semimetals leads to the formation of magnetic chemical bonds for molecular states of a pair of impurities. The effect is associated with the presence of time-reversal symmetry breaking terms in the Hamiltonian which drive a crossover from s- to p-wave scattering. The profiles of the corresponding molecular orbitals and their spin polarizations are defined by the relative orientation of the lines connecting two Weyl nodes and two impurities. The magnetic character of the molecular orbitals and their tunability open the way for using doped Weyl semimetals for spintronics and realization of qubits.
References in corpus (22)
- Electronic Structure of Pyrochlore Iridates: From Topological Dirac Metal to Mott Insulator
- Weyl and Dirac Semimetals in Three Dimensional Solids
- Discovery of a Weyl Fermion Semimetal and Topological Fermi Arcs
- Discovery of a Three-dimensional Topological Dirac Semimetal, Na3Bi
- Dirac semimetal and topological phase transitions in A3Bi (A=Na, K, Rb)
- Experimental discovery of Weyl semimetal TaAs
- Three Dimensional Dirac Semimetal and Quantum Transports in Cd3As2
- Theoretical Discovery/Prediction: Weyl Semimetal states in the TaAs material (TaAs, NbAs, NbP, TaP) class
- Chern semi-metal and Quantized Anomalous Hall Effect in HgCr2Se4
- Weyl semimetal phase in non-centrosymmetric transition metal monophosphides
- Observation of Weyl nodes in TaAs
- Quantum Hall effects in a Weyl Semi-Metal: possible application in pyrochlore Iridates
- Charge Transport in Weyl Semimetals
- Observation of Weyl nodes and Fermi arcs in TaP
- Nonequilibrium theory of scanning tunneling spectroscopy via adsorbate resonances: nonmagnetic and Kondo impurities
- RKKY interaction of magnetic impurities in Dirac and Weyl semimetals
- Breakdown of the Chiral Anomaly in Weyl Semimetals in a Strong Magnetic Field
- Kondo effect and non-Fermi liquid behavior in Dirac and Weyl semimetals
- A magnetic Impurity in a Weyl semimetal
- Kondo Effect with Weyl Semimetal Fermi Arcs
- Antibonding Ground state of Adatom Molecules in Bulk Dirac Semimetals
- Resonant electron tunneling spectroscopy of antibonding states in a Dirac semimetal