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Can I read Real-space BCS-BEC crossover in FeSe monolayers on EtoBox?
Real-space BCS-BEC crossover in FeSe monolayers by Haicheng Lin; Wantong Huang; Gautam Rai; Yuguo Yin; Lianyi He; Qi-Kun Xue; Stephan Haas; Stefan Kettemann; Xi Chen; Shuai-Hua Ji is a Physics and Astronomy article available to read on EtoBox.
What is Real-space BCS-BEC crossover in FeSe monolayers about?
The quantum many-body states in the Bardeen-Cooper-Schrieffer-Bose-Einstein condensation (BCS-BEC) crossover regime are of long-lasting interest. Here we report direct spectroscopic evidence of BCS-BEC crossover in real space in a FeSe monolayer thin film by using spatially resolved scanning tunneling spectra. The crossover is driven by the shift of band structure relative to the Fermi level. The theoretical calculation based on a two-band model qualitatively reproduces the measured spectra in the whole crossover range. In addition, the Zeeman splitting of the quasiparticle states is found to be consistent with the characteristics of a condensate. Our work paves the way to study the exotic states of BCS-BEC crossover in a two-dimensional crystalline material at the atomic scale.
Who reads Real-space BCS-BEC crossover in FeSe monolayers?
It is typically read by researchers, students, and practitioners in Physics and Astronomy.
- Author
- Haicheng Lin; Wantong Huang; Gautam Rai; Yuguo Yin; Lianyi He; Qi-Kun Xue; Stephan Haas; Stefan Kettemann; Xi Chen; Shuai-Hua Ji
- Publisher
- American Physical Society (APS)
- Published
- 2023
- Language
- EN
- Field
- Physics and Astronomy (Physical Sciences)