Competing magnetic ground states in the A -site layer-ordered manganite La1-x Ba1+x Mn2 O6

O. Chmaissem; D. E. Brown; Y. Ren; S. Kolesnik; J. Mais; B. Dabrowski

doi:10.1103/PhysRevB.81.012407

Competing magnetic ground states in the A -site layer-ordered manganite La_1-x Ba_1+x Mn₂ O₆

O. Chmaissem
, D. E. Brown
, Y. Ren
, S. Kolesnik
, J. Mais
, B. Dabrowski

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Abstract

Using neutron and x-ray diffraction, we report the discovery of competing ground states near a multicritical point in A -site layer-ordered La1-x Ba1+x Mn2 O6 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. © 2010 The American Physical Society.

Original language	English
Article number	012407
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	81
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.81.012407
Publication status	Published - 28 Jan 2010
Externally published	Yes

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Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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title = "Competing magnetic ground states in the A -site layer-ordered manganite La1-x Ba1+x Mn2 O6",

abstract = "Using neutron and x-ray diffraction, we report the discovery of competing ground states near a multicritical point in A -site layer-ordered La1-x Ba1+x Mn2 O6 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. {\textcopyright} 2010 The American Physical Society.",

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T1 - Competing magnetic ground states in the A -site layer-ordered manganite La1-x Ba1+x Mn2 O6

AU - Chmaissem, O.

AU - Brown, D. E.

AU - Ren, Y.

AU - Kolesnik, S.

AU - Mais, J.

AU - Dabrowski, B.

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

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N2 - Using neutron and x-ray diffraction, we report the discovery of competing ground states near a multicritical point in A -site layer-ordered La1-x Ba1+x Mn2 O6 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. © 2010 The American Physical Society.

AB - Using neutron and x-ray diffraction, we report the discovery of competing ground states near a multicritical point in A -site layer-ordered La1-x Ba1+x Mn2 O6 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. © 2010 The American Physical Society.

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DO - 10.1103/PhysRevB.81.012407

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JO - Physical Review B - Condensed Matter and Materials Physics

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