Publication Date:
2015-08-15
Description:
Oxide heterostructures often exhibit unusual physical properties that are absent in the constituent bulk materials. Here, we report an atomically sharp transition to a ferromagnetic phase when polar antiferromagnetic LaMnO3 (001) films are grown on SrTiO3 substrates. For a thickness of six unit cells or more, the LaMnO3 film abruptly becomes ferromagnetic over its entire area, which is visualized by scanning superconducting quantum interference device microscopy. The transition is explained in terms of electronic reconstruction originating from the polar nature of the LaMnO3 (001) films. Our results demonstrate that functionalities can be engineered in oxide films that are only a few atomic layers thick.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Wang, X Renshaw -- Li, C J -- Lu, W M -- Paudel, T R -- Leusink, D P -- Hoek, M -- Poccia, N -- Vailionis, A -- Venkatesan, T -- Coey, J M D -- Tsymbal, E Y -- Ariando -- Hilgenkamp, H -- New York, N.Y. -- Science. 2015 Aug 14;349(6249):716-9. doi: 10.1126/science.aaa5198.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉MESA+ Institute for Nanotechnology, University of Twente, Enschede, Netherlands. wang.xiao@utwente.nl venky@nus.edu.sg. ; NUSNNI-Nanocore, National University of Singapore, Singapore. NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore. ; NUSNNI-Nanocore, National University of Singapore, Singapore. ; Department of Physics and Astronomy and Nebraska Center for Materials and Nanoscience, University of Nebraska, Lincoln, NE, USA. ; MESA+ Institute for Nanotechnology, University of Twente, Enschede, Netherlands. ; Geballe Laboratory for Advanced Materials, Stanford University, Stanford, CA, USA. ; NUSNNI-Nanocore, National University of Singapore, Singapore. NUS Graduate School for Integrative Sciences and Engineering, National University of Singapore, Singapore. Department of Physics, National University of Singapore, Singapore. Department of Electrical and Computer Engineering and Department of Materials Science and Engineering, National University of Singapore, Singapore. wang.xiao@utwente.nl venky@nus.edu.sg. ; NUSNNI-Nanocore, National University of Singapore, Singapore. School of Physics and Centre for Research on Adaptive Nanostructures and Nanodevices, Trinity College, Dublin, Ireland. ; NUSNNI-Nanocore, National University of Singapore, Singapore. Department of Physics, National University of Singapore, Singapore.〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/26273050" target="_blank"〉PubMed〈/a〉
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink
