A Ferrimagnetic Manganese Oxide with a Layered Perovskite Structure: YBaMn 2 O 5 | Zendy

Chapman Jon P. | Zendy; Attfield J. Paul | Zendy; Molgg Michele | Zendy; Friend Chris M. | Zendy; Beales Tim P. | Zendy

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A Ferrimagnetic Manganese Oxide with a Layered Perovskite Structure: YBaMn 2 O 5

Author(s) -

Chapman Jon P.,

Attfield J. Paul,

Molgg Michele,

Friend Chris M.,

Beales Tim P.

Publication year - 1996

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199624821

Subject(s) - ferrimagnetism , manganese , valence (chemistry) , manganese oxide , perovskite (structure) , magnetoresistance , condensed matter physics , materials science , ion , oxide , spheres , superconductivity , crystallography , chemistry , magnetization , physics , metallurgy , magnetic field , organic chemistry , quantum mechanics , astronomy

A structure reminiscent of the YBa 2 Cu 3 O 7 superconductor is shown by the novel reduced manganese perovskite YBaMn 2 O 5 (on the right), in which double layers of MnO 5 square pyramids enclose the Ba 2+ ions (large spheres), while Y 3+ ions (medium‐sized black spheres) lie between the layers. Unlike many oxidized Mn perovskites, YBaMn 2 O 5 does not exhibit magnetoresistive effects. Instead a ferrimagnetic transition occurs at 167 K which may be due to Mn 2+ /Mn 3+ valence and spin ordering.

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