Large-gap quantum spin Hall insulators in tin films.
By Yong Xu, Binghai Yan, Hai-Jun Zhang, Jing Wang, Gang Xu, Peizhe Tang, Wenhui Duan, Shoucheng Zhang. Physical Review Letters, 2013
1,007 citations recorded by the source corpus.
The search for large-gap quantum spin Hall (QSH) insulators and effective approaches to tune QSH states is important for both fundamental and practical interests. Based on first-principles calculations we find two-dimensional tin films are QSH insulators with sizable bulk gaps of 0.3 eV, sufficiently large for practical applications at room temperature. These QSH states can be effectively tuned by chemical functionalization and by external strain. The mechanism for the QSH effect in this system is band inversion at the Γ point, similar to the case of a HgTe quantum well. With surface doping of magnetic elements, the quantum anomalous Hall effect could also be realized.
Subfields: Atomic and Molecular Physics, and Optics, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/99638a5dc7f3f2d27ac762080f97167bdf456c37
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Materials Chemistry
- Nathan Goldman
- M. Aidelsburger
- Sylvain Nascimbene
- Mauricio Terrones
- Yong Xu
- A. Manchon
- R. Duine
- K. He
Citations in the corpus
- Superconductivity in few-layer stanene (2017, background): “Stanene promises various exotic features such as highly efficient thermoelectrics [15], topological superconductivity [16], high-temperature quantum spin Hall [17] and quantum anomalous Hall effects [18].”