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Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.104.l220506
Abstract: We develop a theory of superconducting pairing in low-density Strontium titanate due to quadratic coupling of electron density to soft transverse optical phonons [1]. It leads to static attractive potential between electrons which decay length…
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Keywords:
theory;
ngai mechanism;
mechanism lightly;
superconductivity due ... See more keywords