Spin-Valley Coupling

Kolobov, Alexander V.; Tominaga, Junji

doi:10.1007/978-3-319-31450-1_11

Cited by 1 publication

(2 citation statements)

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“…Then, decoherence can be tuned by strain in TMDC monolayers. , Modulation of the valley pseudospin has also been achieved via the Zeeman effect in an external magnetic field and using a pseudomagnetic field from the optical Stark effect. , Similarly, a Zeeman-type polarization applying an external electric field can tune the exciton splitting, and a polarization reversal of a WSe 2 -based ambipolar transistor was reported . Finally, due to the optical selection rules, the valley polarization can be controlled by the helicity of light and by spin-injection …”

Section: Materials Physics and Electronic Structurementioning

confidence: 99%

“… 40 , 41 Similarly, a Zeeman-type polarization applying an external electric field can tune the exciton splitting, 42 and a polarization reversal of a WSe 2 -based ambipolar transistor was reported. 43 Finally, due to the optical selection rules, the valley polarization can be controlled by the helicity of light 44 and by spin-injection. 45 …”

Section: Materials Physics and Electronic Structurementioning

confidence: 99%

See 1 more Smart Citation

Optically Addressing Exciton Spin and Pseudospin in Nanomaterials for Spintronics Applications

Lubert-Perquel,

Acharya,

Johnson

2023

ACS Appl. Opt. Mater.

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Oriented exciton spins that can be generated and manipulated optically are of interest for a range of applications, including spintronics, quantum information science, and neuromorphic computing architectures. Although materials that host such excitons often lack practical coherence times for use on their own, strategic transduction of the magnetic information across interfaces can combine fast modulation with longer-term storage and readout. Several nanostructure systems have been put forward due to their interesting magneto-optical properties and their possible manipulation using circularly polarized light. These material systems are presented here, namely two-dimensional (2D) systems due to the unique spin-valley coupling properties and quantum dots for their exciton fine structure. 2D magnets are also discussed for their anisotropic spin behavior and extensive 2D magnetic states that are not yet fully understood but could pave the way for emergent techniques of magnetic control. This review also details the experimental and theoretical tools to measure and understand these systems along with a discussion on the progress of optical manipulation of spins and magnetic order transitions.

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