1
|
Palgrave R, Borisov P, Dyer MS, McMitchell SRC, Darling GR, Claridge JB, Batuk M, Tan H, Tian H, Verbeeck J, Hadermann J, Rosseinsky MJ. Artificial construction of the layered Ruddlesden-Popper manganite La2Sr2Mn3O10 by reflection high energy electron diffraction monitored pulsed laser deposition. J Am Chem Soc 2012; 134:7700-14. [PMID: 22463768 PMCID: PMC3699890 DOI: 10.1021/ja211138x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2011] [Indexed: 11/28/2022]
Abstract
Pulsed laser deposition has been used to artificially construct the n = 3 Ruddlesden-Popper structure La(2)Sr(2)Mn(3)O(10) in epitaxial thin film form by sequentially layering La(1-x)Sr(x)MnO(3) 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(2+) 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(g) ≈ 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.
Collapse
Affiliation(s)
- Robert
G. Palgrave
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD,
United Kingdom
| | - Pavel Borisov
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD,
United Kingdom
| | - Matthew S. Dyer
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD,
United Kingdom
| | - Sean R. C. McMitchell
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD,
United Kingdom
| | - George R. Darling
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD,
United Kingdom
| | - John B. Claridge
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD,
United Kingdom
| | - Maria Batuk
- EMAT, University
of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp,
Belgium
| | - Haiyan Tan
- EMAT, University
of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp,
Belgium
| | - He Tian
- EMAT, University
of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp,
Belgium
| | - Jo Verbeeck
- EMAT, University
of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp,
Belgium
| | - Joke Hadermann
- EMAT, University
of Antwerp, Groenenborgerlaan 171, B-2020, Antwerp,
Belgium
| | - Matthew J. Rosseinsky
- Department of Chemistry, University of Liverpool, Crown Street, Liverpool L69 7ZD,
United Kingdom
| |
Collapse
|
2
|
Bazuev GV, Chupakhina TI, Lelkozerova MA. Synthesis and magnetic properties of quasi-unidimensional oxide Sr6.3Rh2.35Mn2.35O15. RUSS J GEN CHEM+ 2008. [DOI: 10.1134/s1070363208100034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|