Mechanical deformations and ensuing strain are routinely exploited to tune the band gap energy and to enhance the functionalities of two-dimensional crystals. In this Letter, we show that strain leads also to a strong modification of the exciton magnetic moment in ${\mathrm{WS}}_2$ monolayers. Zeeman-splitting measurements under magnetic fields up to 28.5 T were performed on single, one-layer-thick ${\mathrm{WS}}_2$ microbubbles. The strain of the bubbles causes a hybridization of $k$-space direct and indirect excitons resulting in a sizable decrease in the modulus of the $g$ factor of the ground-state exciton. These findings indicate that strain may have major effects on the way the valley number of excitons can be used to process binary information in two-dimensional crystals.

中文翻译：

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塞曼分裂测量揭示了WS2单层中的应变诱导激子杂化

通常利用机械变形和随之而来的应变来调整带隙能量并增强二维晶体的功能。在这封信中，我们表明应变也会导致激子磁矩的强烈修改${\mathrm{WS}}_2$单层。在高达 28.5 T 的磁场下进行塞曼分裂测量，在单层厚度上进行${\mathrm{WS}}_2$微泡。气泡的应变导致杂交$ķ$-空间直接和间接激子导致模量显着降低$G$基态激子的因子。这些发现表明，应变可能对激子谷数可用于处理二维晶体中的二元信息的方式产生重大影响。