Kovaleva, NN;
Gavartin, JL;
Shluger, AL;
Boris, AV;
Stoneham, AM;
(2002)
Formation and relaxation energies of electronic holes in LaMnO3 crystal.
Physica B: Condensed Matter
, 312-31
734 - 736.
10.1016/S0921-4526(01)01240-6.
![[thumbnail of 99049.pdf]](https://discovery.ucl.ac.uk/style/images/fileicons/application_pdf.png) Preview |
PDF
99049.pdf Download (74kB) |
Abstract
We use the Mott-Littleton approach to evaluate the electronic and ionic polarisation energies in LaMnO3 lattice associated with holes localised on both Mn3+ cation and O2- anion. The full lattice relaxation energy for a hole localised at the O-site is estimated as 2.4 eV which is appreciably greater than that of 0.8 eV for a hole localised at the Mn-site, indicating the strong electron-phonon interaction in the former case. The calculated thermal energies of the hole formation predict that the electronic hole is marginally more stable in the Mn4- state in LaMnO3 host lattice. but the energy of a hole in the O- state is only higher by a small amount, rather suggesting that both possibilities should be treated seriously. (C) 2002 Elsevier Science B.V. All rights reserved.
| Type: | Article |
|---|---|
| Title: | Formation and relaxation energies of electronic holes in LaMnO3 crystal |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1016/S0921-4526(01)01240-6 |
| Publisher version: | http://dx.doi.org/10.1016/S0921-4526(01)01240-6 |
| Language: | English |
| Additional information: | Text made available to UCL Discovery by kind permission of Elsevier B.V., 2012 |
| Keywords: | Colossal magnetoresistance (CMR), localised holes, polaron key energies |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/99049 |
Archive Staff Only
 |
View Item |
