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Updated: Oct 1, 2025

Growth and Electrostatic/chemical Properties of Metal/LaAlO3/SrTiO3 Heterostructures
Published on: February 8, 2018
Computational design of a new layered superconductor LaOTlF2
Zhihong Yuan1, Jingjing Meng1, Rui Liu1
1Department of Physics and Center for Advanced Quantum Studies, Beijing Normal University, Beijing 100875, China. yinzhiping@bnu.edu.cn.
Abstract:
A new layered compound LaOTlF2 is designed and investigated using first-principles calculations in this work. The parent compound is an insulator with an indirect band gap of 3.88 eV. Electron-doping of the parent compound makes the material metallic. In the meantime, several lattice vibrational modes couple strongly to the conduction band, leading to a large electron-phonon coupling constant and conventional superconductivity. The highest superconducting transition temperature Tc is predicted to be approximately 8.6 K with λ about 1.25 in the optimally doped LaO0.95F0.05TlF2, where λ is calculated using the Wannier interpolation technique.
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