Atomic-scale images of charge ordering in a mixed-valence manganite

Nature
Ch RennerS-W Cheong

Abstract

Transition-metal perovskite oxides exhibit a wide range of extraordinary but imperfectly understood phenomena. The best known examples are high-temperature superconductivity in copper oxides, and colossal magnetoresistance in manganese oxides ('manganites'). All of these materials undergo a range of order-disorder transitions associated with changes in charge, spin, orbital and lattice degrees of freedom. Measurements of such order are usually made by diffraction techniques, which detect the ionic cores and the spins of the conduction electrons. Unfortunately, because such techniques are only weakly sensitive to valence electrons and yield superpositions of signals from distinct submicrometre-scale phases, they cannot directly image phase coexistence and charge ordering, two key features of the manganites. Here we present scanning tunnelling microscope measurements of the manganite Bi1-xCaxMnO3. We show that charge ordering and phase separation can be resolved in real space with atomic-scale resolution. By taking together images and current-voltage spectroscopy data we find that charge order correlates with both structural order and the local conductive state (either metallic or insulating). These experiments provide an atomic-...Continue Reading

Citations

Jul 7, 2011·Nano Letters·Ji Young JoPaul G Evans
Mar 3, 2011·Nature Communications·B BryantG Aeppli
Sep 11, 2007·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·Vijay B Shenoy, C N R Rao
Mar 8, 2013·The Review of Scientific Instruments·Honghua U YangMarkus B Raschke
Nov 2, 2006·Nature Materials·Neil Mathur
Aug 11, 2011·Nanoscale·Jiang Wei, Douglas Natelson
Dec 8, 2015·Journal of the American Chemical Society·Robin OhmannYabing Qi
Aug 25, 2006·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Vijay B ShenoyC N R Rao
Jul 4, 2015·Nature Communications·Eric Yue MaZhi-Xun Shen
May 26, 2016·Nano Letters·Hyo Sung KimHan Woong Yeom
Jul 19, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Shu-Chih HawJin-Ming Chen
Apr 20, 2004·Physical Review Letters·M VarelaS J Pennycook
Jul 25, 2014·Nature Communications·Zheng GaiArthur P Baddorf
Jul 9, 2008·Journal of Physics. Condensed Matter : an Institute of Physics Journal·P K SiwachO N Srivastava
Mar 25, 2009·Journal of Physics. Condensed Matter : an Institute of Physics Journal·S YeoS-W Cheong
Apr 17, 2004·Nature Materials·Neil Mathur, Peter Littlewood
Apr 15, 2006·Physical Review Letters·Jiandi ZhangE W Plummer
Dec 13, 2006·Physical Review Letters·P BozsokiH Stolz
Apr 19, 2020·Annual Review of Neuroscience·A R Bishop
Nov 5, 2016·Reports on Progress in Physics·Mengkun LiuD N Basov
Feb 9, 2005·Physical Review Letters·M Eblen-ZayasA M Goldman
Sep 28, 2004·Physical Review Letters·D D SarmaA Fujimori
Apr 20, 2004·Physical Review Letters·Sanjeev Kumar, Pinaki Majumdar
Oct 15, 2008·Physical Review Letters·I B Altfeder, D M Chen
Mar 16, 2007·Physical Review Letters·Vijay B ShenoyT V Ramakrishnan
Mar 12, 2015·ACS Nano·Alexander TselevSergei V Kalinin
Nov 13, 2018·Journal of the American Chemical Society·Evan S O'BrienXavier Roy
Dec 1, 2006·The Journal of Physical Chemistry. B·Hak B MoonJin H Cho

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