Multi-parameter control of photodetection in van der Waals magnet CrSBr

Shiqi Yang; Zhigang Song; Yuchen Gao; Leyan Huang; Xinyue Huang; Pingfan Gu; Wenjing Liu; Zuxin Chen; Yu Ye

doi:10.1038/s41377-024-01737-2

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Multi-parameter control of photodetection in van der Waals magnet CrSBr

Original Articles

- Multi-parameter control of photodetection in van der Waals magnet CrSBr
- Light: Science & Applications Vol. 14, Issue 3, Pages: 713-720(2025)
- Affiliations：
  
  1.State Key Laboratory for Mesoscopic Physics and Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
  2.John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA
  3.Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
  4.School of Semiconductor Science and Technology, South China Normal University, Foshan 528225, China
  5.Collaborative Innovation Centre of Quantum Matter, Beijing 100871, China
  6.Yangtze Delta Institute of Optoelectronics, Peking University, Nantong 226010 Jiangsu, China
  7.Liaoning Academy of Materials, Shenyang 110167, China
- Author bio：
  
  Yu Ye (ye_yu@pku.edu.cn)
- Funds：
- DOI：10.1038/s41377-024-01737-2
  CLC：
- Received：10 October 2024，
  
  Revised：09 December 2024，
  
  Accepted：2024-12-27，
  
  Published Online：03 February 2025，
  
  Published：31 March 2025
- Accepted：
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Yang, S. Q. et al. Multi-parameter control of photodetection in van der Waals magnet CrSBr. Light: Science & Applications, 14, 713-720 (2025).
DOI：

Yang, S. Q. et al. Multi-parameter control of photodetection in van der Waals magnet CrSBr. Light: Science & Applications, 14, 713-720 (2025). DOI： 10.1038/s41377-024-01737-2.

摘要

Abstract

Photodetectors equipped with multi-parameter control hold the potential to deliver exceptional performance in a wide range of scenarios

paving the way for developing novel spin-opto-electronic devices. Nevertheless

the integration of such capabilities within a single device is challenging due to the necessity of harmonizing multiple materials with varying degrees of freedom. In this study

we introduce the van der Waals magnet CrSBr

featuring inherent anisotropy and distinctive spin-electronic coupling

to this realm. The linear dichroic ratio of the photocurrent in CrSBr tunneling device can reach ~60 at 1.65 K

and the photoresponse experiences a significant boost with increasing magnetic field. Additionally

the unique spin-charge coupling engenders a photon energy-dependent photocurrent that is modulated by an external field and is validated by first-principle calculations. Our findings elucidate the effective multi-parameter control of photodetection based on vdWs magnet CrSBr

highlighting its potential applications in cutting-edge optoelectronic devices and as a highly sensitive probe medium.

关键词

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references

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