Stress-induced charge-ordering process in LiMn 2 O 4
Journal Article
·
· Materials Research Letters
- Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
- Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA, School of Chemical Engineering and Technology, Tianjin University, Tianjin, People’s Republic of China
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.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Spallation Neutron Source (SNS)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1510148
- Alternate ID(s):
- OSTI ID: 1340435
- Journal Information:
- Materials Research Letters, Journal Name: Materials Research Letters Vol. 5 Journal Issue: 2; ISSN 2166-3831
- Publisher:
- Informa UK LimitedCopyright Statement
- Country of Publication:
- United Kingdom
- Language:
- English
Cited by: 10 works
Citation information provided by
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