Hanle effect in transport through single atoms in spin-polarized STM

Busz, Piotr; Tomaszewski, Damian; Barnaś, Józef; Martinek, Jan

doi:10.1016/j.jmmm.2023.171465

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Epr Of a Single Spin In A Delocalized Molecular Orbital1

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2024

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“…S13). This feature is consistent with the change of conductance induced by a Hanle-like precession of the transverse 〈 S x 〉 component injected in the SOMO in the magnetic field experienced by the molecule, as expected for a quantum dot attached to magnetic leads ( 11 , 12 , 27 , 49 , 50 ). The dependence of the zero field conductance on current (fig.…”

Section: Epr Of a Single Spin In A Delocalized Molecular Orbitalsupporting

confidence: 87%

Spin torque–driven electron paramagnetic resonance of a single spin in a pentacene molecule

Kovarik,

Schlitz,

Vishwakarma

et al. 2024

Science

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Control over quantum systems is typically achieved by time-dependent electric or magnetic fields. Alternatively, electronic spins can be controlled by spin-polarized currents. Here, we demonstrate coherent driving of a single spin by a radiofrequency spin-polarized current injected from the tip of a scanning tunneling microscope into an organic molecule. With the excitation of electron paramagnetic resonance, we established dynamic control of single spins by spin torque using a local electric current. In addition, our work highlights the dissipative action of the spin-transfer torque, in contrast to the nondissipative action of the magnetic field, which allows for the manipulation of individual spins based on controlled decoherence.

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