Spin noise of a halide perovskite

2023/11/10 by V. O. Kozlov, Kozlov, V. O., N. I. Selivanov +13
Engineering · Materials Science · Physics and Astronomy · #FOS: Physical sciences #Mesoscale and Nanoscale Physics (cond-mat.mes-hall) #Optics (physics.optics) #Perovskite Materials and Applications #Semiconductor Quantum Structures and Devices #Solid-state spectroscopy and crystallography

paper · pdf · doi:10.48550/arxiv.2311.06077

openalex publication_date 2023/11/10 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We report on first observation of spin noise in a strongly birefringent semiconductor -- halide perovskite single crystal MAPbI₃. The observed spin noise resonance is ascribed to free holes with a record spin dephasing time of 4 ns. The spin dynamics is found to be affected by the residual light absorption of the crystal providing renormalization of the Larmor frequency. Extended spin noise spectroscopy with rotating magnetic field allowed us not only to evaluate the g-factor anisotropy, but also to distinguish two different spin subsystems tentatively associated to twinning of the crystal.

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