@article{menushenkov_extended_2000,
	title = {Extended x-ray absorption fine-structure indication of a double-well potential for oxygen vibration in {Ba} 1 - x {K} x {BiO} 3},
	volume = {12},
	issn = {0953-8984},
	url = {http://dx.doi.org/10.1088/0953-8984/12/16/303},
	doi = {10.1088/0953-8984/12/16/303},
	abstract = {X-ray absorption spectra of the oxide systems Ba 1 - x K x BiO 3 and BaPbO 3 above the Bi and Pb L 3 absorption edges were investigated. It was shown that oxygen ions move in a double-well potential and their oscillations are correlated with the charge-carrier movement. The observed breathing-like oxygen vibration in the double-well potential with large amplitude and low frequency causes the strong electron-phonon coupling and high T c -values for doped BaBiO 3 . Based on the experimental data, a model of the relationship of the electronic and local crystal structures is proposed that is in good agreement with the results from transport measurements, and inelastic neutron and electron scattering, Raman scattering, and photoemission spectroscopy. In the framework of the model, the possible reasons for the superconductivity in perovskite-like oxides are discussed.},
	number = {16},
	journal = {Journal of Physics: Condensed Matter},
	author = {Menushenkov, A. P. and Klementev, K. V.},
	month = apr,
	year = {2000},
	keywords = {babio},
	pages = {3767--3786}
}

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