Optical engineering and detection of magnetism in moiré semiconductors

• URL: http://arxiv.org/abs/2504.13758v1
• Date: Fri, 18 Apr 2025 15:49:06 GMT
• Title: Optical engineering and detection of magnetism in moiré semiconductors
• Abstract summary: We present a framework for optically inducing, controlling, and probing spin states in moir'e systems.<n>Applying Raman optical drives to moir'e transition metal dichalcogenide bilayers can realize a class of spin models.
• Score: 18.984727155880726
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: We present a general framework for optically inducing, controlling, and probing spin states in moir\'e systems. In particular, we demonstrate that applying Raman optical drives to moir\'e transition metal dichalcogenide bilayers can realize a class of spin models, with magnetic interactions tunable via the optical parameters. The resulting interaction anisotropy, controlled by the polarizations of the drives, enables access to magnetic states that are inaccessible in undriven moir\'e bilayers. Furthermore, we establish direct connections between the resulting spin correlations and experimentally observable optical signals. Our work paves the way for future studies on the optical control and detection on strongly correlated quantum systems.

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