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Condens. Matter 2016, 1(1), 5; doi:10.3390/condmat1010005

Calculated Effects of Disorder on the Mo Core Levels in Purple Bronze Li2Mo12O34

Department of Quantum Matter Physics, University of Geneva, 24 Quai Ernest-Ansermet, CH-1211 Geneva 4, Switzerland
This work was presented at the ACSIN2016 Conference in Frascati, Italy, 9–13 October 2016, “Atomically Controlled Surfaces, Interfaces and Nanostructures” edited by Antonio Bianconi and Augusto Marcelli (Superstripes Press, Rome, Italy) 2016 ISBN 9788866830597.
Academic Editor: Augusto Marcelli
Received: 23 September 2016 / Revised: 31 October 2016 / Accepted: 4 November 2016 / Published: 14 November 2016
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Abstract

The band structures of ordered and thermally disordered Li 2 Mo 12 O 34 are calculated by use of ab initio density functional theory (DFT)–Linear Muffin-Tin Method (LMTO) with a focus on the behavior of the Mo 3d -core levels. It is shown that thermal disorder and zero-point motion lead to substantial core level broadening, and the broadening at room temperature is predicted to be sufficiently larger than at zero degrees to allow for a detection by X-ray photoelectron spectroscopy (XPS) measurements. However, real purple bronze has 10% Li vacancies, and static disorder will attenuate the T-dependent broadening. It is argued that core level spectroscopies could be a useful tool for the measurement of thermal disorders in many materials, especially for those with minor static disorder. Studies of core levels in magnetic materials will be helpful for an understanding of T-dependent spin moments. View Full-Text
Keywords: electronic structure; thermal disorder; core-level spectroscopy electronic structure; thermal disorder; core-level spectroscopy
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Jarlborg, T. Calculated Effects of Disorder on the Mo Core Levels in Purple Bronze Li2Mo12O34. Condens. Matter 2016, 1, 5.

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