Title
90° Rotation of orbital stripes in bilayer manganite <tex>$PrCa_{2}Mn_{2}O_{7}$</tex> studied by in situ transmission electron microscopy
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
London ,
Subject
Physics
Chemistry
Source (journal)
Journal of solid state chemistry. - London
Volume/pages
200(2013) , p. 287-293
ISSN
0022-4596
ISI
000317158000043
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
Abstract
We present an in situ transmission electron microscopy study on the half-doped bilayer manganite PrCa2Mn2O7 to reveal the rotation process of the orbital stripes. Between the reported initial and final ordering phases, we identified an intermediate state with two sets of satellite spots to bridge the 90° rotation of the orbital stripes. Furthermore, we determined that the rotation of the orbital stripes does not always occur. Some restricted conditions for the orbital rotation to occur were found and reasons are discussed.
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