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Title: Stress Induced Charge-Ordering Process in LiMn 2O 4

Abstract

In this letter we report the stress-induced Mn charge-ordering process in the LiMn 2O 4 spinel, evidenced by the lattice strain evolutions due to the Jahn–Teller effects. In situ neutron diffraction reveals the initial stage of this process at low stress, indicating the eg electron localization at the preferential Mn sites during the early phase transition as an underlying charge-ordering mechanism in the charge-frustrated LiMn 2O 4. The initial stage of this transition exhibits as a progressive lattice and charge evolution, without showing a first-order behavior.

Authors:
 [1];  [2];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Tianjin Univ. (China)
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
Sponsoring Org.:
USDOE Office of Science (SC)
OSTI Identifier:
1340435
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Materials Research Letters
Additional Journal Information:
Journal Volume: 5; Journal Issue: 2; Journal ID: ISSN 2166-3831
Publisher:
Taylor and Francis
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE

Citation Formats

Chen, Yan, Yu, Dunji, and An, Ke. Stress Induced Charge-Ordering Process in LiMn2O4. United States: N. p., 2016. Web. doi:10.1080/21663831.2016.1197858.
Chen, Yan, Yu, Dunji, & An, Ke. Stress Induced Charge-Ordering Process in LiMn2O4. United States. doi:10.1080/21663831.2016.1197858.
Chen, Yan, Yu, Dunji, and An, Ke. Mon . "Stress Induced Charge-Ordering Process in LiMn2O4". United States. doi:10.1080/21663831.2016.1197858. https://www.osti.gov/servlets/purl/1340435.
@article{osti_1340435,
title = {Stress Induced Charge-Ordering Process in LiMn2O4},
author = {Chen, Yan and Yu, Dunji and An, Ke},
abstractNote = {In this letter we report the stress-induced Mn charge-ordering process in the LiMn2O4 spinel, evidenced by the lattice strain evolutions due to the Jahn–Teller effects. In situ neutron diffraction reveals the initial stage of this process at low stress, indicating the eg electron localization at the preferential Mn sites during the early phase transition as an underlying charge-ordering mechanism in the charge-frustrated LiMn2O4. The initial stage of this transition exhibits as a progressive lattice and charge evolution, without showing a first-order behavior.},
doi = {10.1080/21663831.2016.1197858},
journal = {Materials Research Letters},
number = 2,
volume = 5,
place = {United States},
year = {Mon Jul 25 00:00:00 EDT 2016},
month = {Mon Jul 25 00:00:00 EDT 2016}
}

Journal Article:
Free Publicly Available Full Text
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Cited by: 3 works
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