# Light-Tunable Surface State and Hybridization Gap in Magnetic Topological Insulator MnBi8Te13.

@article{Zhong2021LightTunableSS, title={Light-Tunable Surface State and Hybridization Gap in Magnetic Topological Insulator MnBi8Te13.}, author={Haoyuan Zhong and Changhua Bao and Huan Wang and Jiaheng Li and Zichen Yin and Yong Xu and Wenhui Duan and Tianlong Xia and Shuyun Zhou}, journal={Nano letters}, year={2021} }

MnBi8Te13 is an intrinsic ferromagnetic (FM) topological insulator with different complex surface terminations. Resolving the electronic structures of different termination surfaces and manipulation of the electronic state are important. Here, by using micrometer spot time- and angle-resolved photoemission spectroscopy (μ-TrARPES), we resolve the electronic structures and reveal the ultrafast dynamics upon photoexcitation. Photoinduced filling of the surface state hybridization gap is observed…

## 13 Citations

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