Volume 54, Issue 41 pp. 12069-12073
Communication

Giant Magnetoresistance in the Half-Metallic Double-Perovskite Ferrimagnet Mn2FeReO6

Dr. Man-Rong Li

Dr. Man-Rong Li

Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854 (USA)

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Dr. Maria Retuerto

Dr. Maria Retuerto

Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854 (USA)

Niels Bohr Institute, University of Copenhagen, 2100 Copenhagen (Denmark)

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Zheng Deng

Zheng Deng

Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854 (USA)

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Dr. Peter W. Stephens

Dr. Peter W. Stephens

Department of Physics & Astronomy, State University of New York, Stony Brook, NY 11794 (USA)

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Dr. Mark Croft

Dr. Mark Croft

Department of Physics & Astronomy, Rutgers, The State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854 (USA)

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Dr. Qingzhen Huang

Dr. Qingzhen Huang

Center for Neutron Research, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899-6102 (USA)

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Hui Wu

Hui Wu

Center for Neutron Research, National Institute of Standards and Technology (NIST), Gaithersburg, MD 20899-6102 (USA)

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Xiaoyu Deng

Xiaoyu Deng

Department of Physics & Astronomy, Rutgers, The State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854 (USA)

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Gabriel Kotliar

Gabriel Kotliar

Department of Physics & Astronomy, Rutgers, The State University of New Jersey, 136 Frelinghuysen Road, Piscataway, NJ 08854 (USA)

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Dr. Javier Sánchez-Benítez

Dr. Javier Sánchez-Benítez

Departamento de Química Física I, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, 28040 Madrid (Spain)

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Dr. Joke Hadermann

Dr. Joke Hadermann

EMAT, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp (Belgium)

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Dr. David Walker

Dr. David Walker

Lamont-Doherty Earth Observatory, Columbia University, 61 Route 9W, Palisades, NY 10964 (USA)

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Prof. Martha Greenblatt

Corresponding Author

Prof. Martha Greenblatt

Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854 (USA)

Department of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, 610 Taylor Road, Piscataway, NJ 08854 (USA)Search for more papers by this author
First published: 31 July 2015
Citations: 116

Graphical Abstract

The first transition-metal-only double perovskite, Mn2+2Fe3+Re5+O6, displays ferrimagnetic ordering up to 520 K and a giant positive magnetoresistance of up to 220 % at 5 K and 8 T. These properties result from the ferrimagnetically coupled Fe and Re sublattice and are affected by a two-to-one magnetic-structure transition of the Mn sublattice when a magnetic field is applied.

Abstract

The first transition-metal-only double perovskite compound, Mn2+2Fe3+Re5+O6, with 17 unpaired d electrons displays ferrimagnetic ordering up to 520 K and a giant positive magnetoresistance of up to 220 % at 5 K and 8 T. These properties result from the ferrimagnetically coupled Fe and Re sublattice and are affected by a two-to-one magnetic-structure transition of the Mn sublattice when a magnetic field is applied. Theoretical calculations indicate that the half-metallic state can be mainly attributed to the spin polarization of the Fe and Re sites.

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