@article{saini_local_1998,
	title = {Local structural features of the superconducting {Bi}2Sr2CaCu2O8+δ system: {A} polarized {Cu} {K} -edge {XAS} study},
	volume = {58},
	issn = {0163-1829},
	url = {http://dx.doi.org/10.1103/physrevb.58.11768},
	doi = {10.1103/physrevb.58.11768},
	abstract = {Local structure of CuO 2 plane of the superconducting Bi 2 Sr 2 CaCu 2 O 8+δ (Bi2212) crystal at the optimum doping has been investigated by in-plane polarized Cu K -edge x-ray-absorption spectroscopy. We have determined the quadrupole character of the 1 s ⃗3 d x 2 - y 2 transition in the x-ray-absorption near-edge spectra by rotation of the in-plane polarization geometry by 45° from the Cu-O-Cu direction. The nonzero intensity of this transition in the polarization vector parallel to the Cu-O-Cu direction indicates local structural distortion of the CuO 4 square plane. The statistical distribution of the instantaneous Cu-O bonds is determined by polarized extended x-ray-absorption fine structure and discussed.},
	number = {17},
	journal = {Physical Review B},
	author = {Saini, N. L. and Lanzara, A. and Bianconi, A. and Oyanagi, H.},
	month = nov,
	year = {1998},
	keywords = {bi2212, cdw, cukedge, cuprate, polarization, polaron, super},
	pages = {11768--11773}
}

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