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Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7

Beale, TAW; Bland, SR; Johnson, RD; Hatton, PD; Cezar, JC; Dhesi, SS; Zimmermann, MV; Prabhakaran, D; Boothroyd, AT

Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7 Thumbnail


TAW Beale

SR Bland

RD Johnson

JC Cezar

SS Dhesi

MV Zimmermann

D Prabhakaran

AT Boothroyd


We have investigated orbital ordering in the bilayer manganite, Pr(Sr0.1Ca0.9)2Mn2O7, using synchrotron x-ray diffraction techniques, in particular resonant soft x-ray diffraction. Diffraction signals are observed at (0,12,0) above 300 K and (12,0,0) below 300 K, corresponding to orbital stripes along the a and b axes, respectively. The previously observed transition at 300 K is evidence of a rotation of the orientation of the 3d orbital stripes. Large resonances of the orbital signals are observed at the Mn L edges, with a complex dependence on incident photon energy indicative of a weakly Jahn-Teller distorted system. A structural transition observed at 92 K is found not to involve a further change in the orbital order.


Beale, T., Bland, S., Johnson, R., Hatton, P., Cezar, J., Dhesi, S., …Boothroyd, A. (2009). Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7. Physical review B, 79(5), Article 054433.

Journal Article Type Article
Publication Date Feb 1, 2009
Deposit Date Nov 27, 2012
Publicly Available Date Nov 27, 2012
Journal Physical Review B
Print ISSN 1098-0121
Electronic ISSN 1550-235X
Publisher American Physical Society
Peer Reviewed Peer Reviewed
Volume 79
Issue 5
Article Number 054433
Keywords Charge, Manganites, LA0.5SR1.5MNO4, LA2-2XSR1+2XMN2O, State.


Published Journal Article (298 Kb)

Copyright Statement
© 2009 The American Physical Society

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