Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7
We have investigated orbital ordering in the bilayer manganite, Pr (Sr0.1 Ca0.9) 2 Mn2 O7, using synchrotron x-ray diffraction techniques, in particular resonant soft x-ray diffraction. Diffraction signals are observed at (0, 1 2, 0) above 300 K and (1 2, 0,0) below 300 K, corresponding to orbital s...
| Main Authors: | , , , , , , , , |
|---|---|
| Formato: | Journal article |
| Idioma: | English |
| Publicado: |
2009
|
| _version_ | 1826271514355302400 |
|---|---|
| author | Beale, T Bland, SR Johnson, R Hatton, P Cezar, J Dhesi, S Zimmermann, M Prabhakaran, D Boothroyd, A |
| author_facet | Beale, T Bland, SR Johnson, R Hatton, P Cezar, J Dhesi, S Zimmermann, M Prabhakaran, D Boothroyd, A |
| author_sort | Beale, T |
| collection | OXFORD |
| description | We have investigated orbital ordering in the bilayer manganite, Pr (Sr0.1 Ca0.9) 2 Mn2 O7, using synchrotron x-ray diffraction techniques, in particular resonant soft x-ray diffraction. Diffraction signals are observed at (0, 1 2, 0) above 300 K and (1 2, 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 MnL 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. © 2009 The American Physical Society. |
| first_indexed | 2024-03-06T21:57:51Z |
| format | Journal article |
| id | oxford-uuid:4d89fb7e-c85c-48aa-917a-cc055f8e140b |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:57:51Z |
| publishDate | 2009 |
| record_format | dspace |
| spelling | oxford-uuid:4d89fb7e-c85c-48aa-917a-cc055f8e140b2022-03-26T15:56:02ZThermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:4d89fb7e-c85c-48aa-917a-cc055f8e140bEnglishSymplectic Elements at Oxford2009Beale, TBland, SRJohnson, RHatton, PCezar, JDhesi, SZimmermann, MPrabhakaran, DBoothroyd, AWe have investigated orbital ordering in the bilayer manganite, Pr (Sr0.1 Ca0.9) 2 Mn2 O7, using synchrotron x-ray diffraction techniques, in particular resonant soft x-ray diffraction. Diffraction signals are observed at (0, 1 2, 0) above 300 K and (1 2, 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 MnL 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. © 2009 The American Physical Society. |
| spellingShingle | Beale, T Bland, SR Johnson, R Hatton, P Cezar, J Dhesi, S Zimmermann, M Prabhakaran, D Boothroyd, A Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7 |
| title | Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7 |
| title_full | Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7 |
| title_fullStr | Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7 |
| title_full_unstemmed | Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7 |
| title_short | Thermally induced rotation of 3d orbital stripes in Pr(Sr0.1Ca0.9)(2)Mn2O7 |
| title_sort | thermally induced rotation of 3d orbital stripes in pr sr0 1ca0 9 2 mn2o7 |
| work_keys_str_mv | AT bealet thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT blandsr thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT johnsonr thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT hattonp thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT cezarj thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT dhesis thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT zimmermannm thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT prabhakarand thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 AT boothroyda thermallyinducedrotationof3dorbitalstripesinprsr01ca092mn2o7 |