@article{10902/31591,
year = {2022},
month = {9},
url = {https://hdl.handle.net/10902/31591},
abstract = {The phenomenological theory for the polar instability giving rise to a two-dimensional electron gas at perovskite interfaces is hereby extended to include the coupling to perovskite tilts. A Landau theory for homogeneous tilts is first explored, setting the scene for the further, more realistic Landau-Ginzburg theory describing varying tilt amplitudes across a thin film. The theory is also generalized to account for the response to an applied electric field normal to the interface, which allows a finer control on phase transitions. The conventionally described physics of a single metal-insulator transition is substantially enriched by the coupling, the model describing various scenarios with one or two transitions, possibly continuous or discontinuous. First-principles calculations permit the estimation of the parameters defining the model, which have been calculated for the interface between lanthanum aluminate and strontium titanate.},
organization = {D.B. would like to acknowledge funding from the EPSRC Centre for Doctoral Training in Computational Methods for Materials Science under Grant No. EP/L015552/1, St. John's College (University of Cambridge), and the University of Liége under special funds for research (IPD-STEMA fellowship programme). P.A.P. would like to acknowledge funding from the Diputación Foral de Gipuzkoa through Grant No. 2020-FELL-000005-01. Funding from the Spanish MICIN is also acknowledged, through Grant No. PID2019-107338RB-C61/AEI/10.13039/501100011033, as well as a María de Maeztu award to Nanogune, Grant No. CEX2020-001038-M funded by MCIN/AEI/10.13039/501100011033.},
publisher = {American Physical Society},
publisher = {Physical Review B, 2022, 106(9), 094106},
title = {Coupling between tilts and charge carriers at polar-nonpolar perovskite interfaces},
author = {Bennett, Daniel and Aguado Puente, Pablo and Artacho, Emilio and Bristowe, Nicholas C.},
}