Single spin resonance driven by electric modulation of the g factor anisotropy

Abstract

We address the problem of electronic and nuclear spin resonance of an individual atom on a surface driven by a scanning tunnelling microscope. Several mechanisms have been proposed so far, some of them based on the modulation of exchange and crystal field associated to a piezoelectric displacement of the adatom driven by the RF tip electric field. Here we consider a new mechanism, where the piezoelectric displacement modulates the g factor anisotropy, leading both to electronic and nuclear spin flip transitions. We discuss thoroughly the cases of Ti-H (S = 1/2) and Fe (S = 2) on MgO, relevant for recent experiments. We model the system using two approaches. First, an analytical model that includes crystal field, spin orbit coupling and hyperfine interactions. Second, we carry out density functional based calculations. We find that the modulation of the anisotropy of the g tensor due to the piezoelectric displacement of the atom is an additional mechanism for STM based single spin resonance, that would be effective in S = 1/2 adatoms with large spin orbit coupling. In the case of Ti-H on MgO, we predict a modulation spin resonance frequency driven by the DC electric field of the tip.

arXiv comment15 pages, 7 figures

References in corpus (26)

• Quantum ESPRESSO: a modular and open-source software project for quantum simulations of materials
• Electrically driven single electron spin resonance in a slanting Zeeman field
• Electrical control of a long-lived spin qubit in a Si/SiGe quantum dot
• Reading and Writing Single-Atom Magnets
• Operating Quantum States in Single Magnetic Molecules: Implementation of Grover's Quantum Algorithm
• Coherent single electron spin control in a slanting Zeeman field
• First principles theory of the EPR g-tensor in solids: defects in quartz
• Electrically controlling single spin qubits in a continuous microwave field
• Engineering the eigenstates of coupled spin-1/2 atoms on a surface
• Electron spin coherence and electron nuclear double resonance of Bi donors in natural Si
• Enhanced quantum coherence in exchange coupled spins via singlet-triplet transitions
• Tuning the exchange bias on a single atom from 1 mT to 10 T
• Magnetic Resonance Imaging of Single Atoms
• Coherent spin control by electrical manipulation of the magnetic anisotropy
• Tuning Single-Atom Electron Spin Resonance in a Vector-Magnetic Field
• Exchange mechanism for electron paramagnetic resonance of individual adatoms
• Electrically-tunable hole g-factor of an optically-active quantum dot for fast spin rotations
• A cotunneling mechanism for all-electrical Electron Spin Resonance of single adsorbed atoms
• Upgrade of a low-temperature scanning tunneling microscope for electron-spin resonance
• Resolving Spin-Orbit and Hyperfine Mediated Electric Dipole Spin Resonance in a Quantum Dot
• The emergence of classical behavior in magnetic adatoms
• Consequences of Kondo exchange on quantum spins
• Spin transfer torque induced paramagnetic resonance
• Electron Paramagnetic Resonance of Single Magnetic Moment on a Surface
• Electronic properties of transition metal atoms on Cu${}_2$N/Cu(100)
• Derivation of the spin Hamiltonians for Fe in MgO

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