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25 papers
A Unified Description of Electron-Phonon Coupling and Ion Migration in Metal Halide Perovskites
Bo Cai, Yan Yang, Yoshiki Sugai +11
The remarkable optoelectronic properties of metal halide perovskites are closely linked to their unusually soft and polar chemical bonds that enable both strong electron-phonon int…
Significance of the dispersion force for ferroelectric switching in ZnO and related materials
Lingyao Zhang, Musen Li, Nisha Metha +3
Wurtzite-ZnO is a wide-bandgap polar material with a ferroelectric-switching barrier that is too high to utilize, but the barrier can be reduced and switching observed in substitut…
Nonlinear Terahertz Polaritonics in a Quantum Paraelectric
Chao Shen, Carla Verdi, Serafim Babkin +2
Terahertz (THz) frequency range holds immense potential for high-speed data processing and signal manipulation. However, a fundamental challenge remains: the efficient and tunable…
Quantum Emitters in Rhombohedral Boron Nitride
Angus Gale, Mehran Kianinia, Jake Horder +8
Rhombohedral boron nitride (rBN) is an emerging wide-bandgap van der Waals (vdW) material that combines strong second-order nonlinear optical properties with the structural flexibi…
Superconductivity in Substitutional Ga-Hyperdoped Ge Epitaxial Thin Films
Julian A. Steele, Patrick J. Strohbeen, Carla Verdi +12
Doping-induced superconductivity in group IV elements may enable quantum functionalities in material systems accessible with well-established semiconductor technologies. Non-equili…
First-principles theory of nonlinear long-range electron-phonon interaction
Matthew Houtput, Luigi Ranalli, Carla Verdi +4
Describing electron-phonon interactions in a solid requires knowledge of the electron-phonon matrix elements in the Hamiltonian. State-of-the-art first-principles calculations for…