Possible mechanism for superconductivity in doped SrTiO_{3}
The soft ferroelectric phonon in SrTiO_{3} observed with optical spectroscopy has an extraordinarily strong spectral weight which is much stronger than expected in the limit of a perfectly ionic compound. This “charged phonon” effect in SrTiO_{3} is caused by the close-to-covalent character of the T...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
American Physical Society
2019-08-01
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| Series: | Physical Review Research |
| Online Access: | http://doi.org/10.1103/PhysRevResearch.1.013003 |