@article{parisiades_abnormal_2007,
	title = {Abnormal isotopic shift of the broad band in the {Mg}1−{xAlx}10,11B2 superconductor},
	volume = {460-462},
	issn = {09214534},
	url = {http://dx.doi.org/10.1016/j.physc.2007.04.124},
	doi = {10.1016/j.physc.2007.04.124},
	abstract = {We have studied the effect of aluminum doping and boron isotopic substitution on the Raman spectra of the Mg 1− x Al x 10,11 B 2 polycrystalline compounds. Our data show that new peaks appear at 740 and 870 cm −1 while the broad band at 600 cm −1 diminishes for higher Al doping levels. The high energy band evolves to the E 2g phonon mode of AlB 2 corresponding to a strong reduction in the electron–phonon coupling. The isotopic shift for the broad band at 600 cm −1 is small considering the isotopic shift of the other bands, which follow the harmonic mass law. This extreme anharmonic behavior indicates that the broad band may not be directly related with the E 2g phonon of the B atoms.},
	journal = {Physica C: Superconductivity},
	author = {Parisiades, P. and Lampakis, D. and Palles, D. and Liarokapis, E. and Simonelli, L. and Bianconi, A.},
	year = {2007},
	keywords = {diboride, doping, isotope, raman, super},
	pages = {612--613}
}

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