Artificial Construction of the Layered Ruddlesden-Popper Manganite LaSrMnO by Reflection High Energy Electron Diffraction Monitored Pulsed Laser Deposition.
Pulsed laser deposition has been used to artificially construct the n = 3 Ruddlesden-Popper structure LaSrMnO in epitaxial thin film form by sequentially layering LaSrMnO and SrO unit cells aided by in situ reflection high energy electron diffraction monitoring. The interval deposition technique was...
| Publicado en: | Journal of the American Chemical Society Vol. 134; no. 18; pp. 7700 - 7715 |
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| Autores principales: | , , , , , , , , , , , |
| Formato: | Artículo |
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American Chemical Society
5/9/2012
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| Materias: | |
| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=hlh&AN=75333090&site=ehost-live header: @attributes: shortDbName: hlh uiTerm: 75333090 longDbName: Humanities International Complete uiTag: AN controlInfo: bkinfo: jinfo: jid: 00027863 ACS jtl: Journal of the American Chemical Society issn: 00027863 maglogo: N pubinfo: dt: 5/9/2012 vid: 134 iid: 18 pid: 997 pub: American Chemical Society artinfo: ui: 75333090 10.1021/ja211138x ppf: 7700 ppct: 15 formats: tig: atl: Artificial Construction of the Layered Ruddlesden-Popper Manganite LaSrMnO by Reflection High Energy Electron Diffraction Monitored Pulsed Laser Deposition. aug: au: Palgrave, Robert G. Borisov, Pavel Dyer, Matthew S. McMitchell, Sean R. C. Darling, George R. Claridge, John B. Batuk, Maria Haiyan Tan He Tian Verbeeck, Jo Hadermann, Joke Rosseinsky, Matthew J. affil: Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69?7ZD, United Kingdom EMAT, University of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp, Belgium su: Pulsed laser deposition Density functionals Manganite Structural analysis (Science) Reflection high energy electron diffraction Strontium oxide sug: subj: Pulsed laser deposition Density functionals Manganite Structural analysis (Science) Reflection high energy electron diffraction Strontium oxide ab: Pulsed laser deposition has been used to artificially construct the n = 3 Ruddlesden-Popper structure LaSrMnO in epitaxial thin film form by sequentially layering LaSrMnO and SrO unit cells aided by in situ reflection high energy electron diffraction monitoring. The interval deposition technique was used to promote two-dimensional SrO growth. X-ray diffraction and cross-sectional transmission electron microscopy indicated that the trilayer structure had been formed. A site ordering was found to differ from that expected thermodynamically, with the smaller Sr predominantly on the R site due to kinetic trapping of the deposited cation sequence. A dependence of the out-of-plane lattice parameter on growth pressure was interpreted as changing the oxygen content of the films. Magnetic and transport measurements on fully oxygenated films indicated a frustrated magnetic ground state characterized as a spin glass-like magnetic phase with the glass temperature T ≈ 34 K. The magnetic frustration has a clear in-plane (ab) magnetic anisotropy, which is maintained up to temperatures of 150 K. Density functional theory calculations suggest competing antiferromagnetic and ferromagnetic long-range orders, which are proposed as the origin of the low-temperature glassy state. pubtype: Academic Journal doctype: Article src: R language: English refInfo: copyright: @attributes: flag: Y dt: @attributes: year: 2012 holdings: @attributes: islocal: N |
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