Real-Space Study of Charge and Orbital Ordering in La0.6Sr2.4Mn2O7 Manganite Single Crystal
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Argonne National Lab. (ANL), Argonne, IL (United States)
Charge and orbital ordering often occur in strongly correlated materials involving cations with multivalence states. This order is related to various interesting physical phenomena in perovskite-structured and related oxides, such as superconductivity and colossal magnetoresistance [1,2]. The n = 2 Ruddlesden-Popper phase La2-2xSr1+2xMn2O7 (LSMO), which is comprised of perovskite-like (La, Sr)MnO3 bilayers separated by a rock-salt-like (La, Sr)O layer along [001], represents one of the most interesting manganites where its charge and orbital ordering can be tuned by varying x. In its phase diagram [3,4], previous studies revealed a narrow region with 0.66 ≤ x ≤ 0.72 that showed no long-range magnetic ordering, while the regions with x below 0.66 and above 0.72 exhibited clear different longrange magnetic ordering behaviors owing to charge/orbital ordering in the lattice.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- AC05-00OR22725
- OSTI ID:
- 1495973
- Journal Information:
- Microscopy and Microanalysis, Vol. 24, Issue S1; ISSN 1431-9276
- Publisher:
- Microscopy Society of America (MSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
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