Competing magnetic ground states in the A-site layer-ordered manganite La[subscript 1−x]Ba[subscript 1+x]Mn[subscript 2]O[subscript 6]
- NIU
Using neutron and x-ray diffraction, we report the discovery of competing ground states near a multicritical point in A-site layer-ordered La{sub 1-x}Ba{sub 1+x}Mn{sub 2}O{sub 6} materials. We demonstrate the dual effects of deliberate disorder on the system's stability, the freezing of the competing states, and the drastic reduction in magnetic fields required for the suppression of charge- and orbital-ordered phases. Our work suggests that quenched disorder is not the primary reason for phase separation and magnetoresistance and that increased doping leads to electronic phase separation.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1002777
- Journal Information:
- Phys. Rev. B, Vol. 81, Issue (1) ; 2010
- Country of Publication:
- United States
- Language:
- ENGLISH
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