Abstract
Self-assembled nanostructures with periodic phase separation hold great promise for creating two- and three-dimensional superlattices with extraordinary physical properties. Understanding the mechanism(s) driving the formation of such superlattices demands an understanding of their underlying atomic structure. However, the nanoscale structural fluctuations intrinsic to these superlattices pose a new challenge for structure determination methods. Here we develop an optimized atomic-level imaging condition to measure TiO6 octahedral tilt angles, unit-cell-by-unit-cell, in perovskite-based Li(0.5-3x)Nd(0.5+x)TiO3, and thereby determine the mathematical formula governing this nanoscale superstructure. We obtain a direct real-space correlation of the octahedral tilt modulation with the superstructure geometry and lattice-parameter variations. This reveals a composition-dependent, self-ordered octahedral superlattice. Amazingly, we observe a reversible annihilation/reconstruction of the octahedral superlattice correlated with the delithiation/lithiation process in this promising Li-ion conductor. This approach to quantify local octahedral tilt and correlate it with strain can be applied to characterize complex octahedral behaviours i...Continue Reading
References
Feb 8, 2003·Science·C L JiaK Urban
Apr 12, 2003·Nature Materials·V MoshnyagaK Samwer
Jan 31, 2004·Science·H ZhengR Ramesh
Jan 28, 2005·Nature·Guus Rijnders, Dave H A Blank
Jan 28, 2005·Nature·Ho Nyung LeeDouglas H Lowndes
Sep 16, 2006·Science·D A TenneX X Xi
Jun 26, 2007·Nature Materials·Beth S Guiton, Peter K Davies
Mar 4, 2008·Nature Materials·Judith L MacManus-DriscollQuanxi Jia
Dec 5, 2008·Journal of the American Chemical Society·Beth S Guiton, Peter K Davies
Apr 21, 2009·Nature Materials·Yong Ni, Armen G Khachaturyan
Jun 13, 2009·Science·H WatanabeS Shikata
Nov 20, 2009·Acta Crystallographica. Section B, Structural Science·Graham KingPatrick M Woodward
Dec 22, 2009·Ultramicroscopy·C Dwyer
Sep 28, 2010·Physical Review Letters·A Y BorisevichS J Pennycook
Jan 15, 2011·Physical Review Letters·Matthew F ChisholmHo Nyung Lee
Jul 13, 2011·Advanced Materials·James M Rondinelli, Nicola A Spaldin
Mar 6, 2012·Inorganic Chemistry·Susana García-MartínPatrick M Woodward
Jul 17, 2012·Ultramicroscopy·Masahiro OhtsukaKazuto Watanabe
Jul 17, 2013·Scientific Reports·Ryotaro AsoHiroki Kurata
Sep 10, 2013·Ultramicroscopy·S D FindlayN Shibata
Dec 10, 2013·Nature Materials·Jayakanth RavichandranMark A Zurbuchen
Feb 21, 2014·Nature Materials·Rolf ErniGustaaf Van Tendeloo
Feb 21, 2014·Nature Materials·Peter K Davies, Beth S Guiton
Oct 25, 2014·Science·R V GorbachevA K Geim
Citations
Aug 30, 2016·Inorganic Chemistry·Gabriel L MurphyZhaoming Zhang
Sep 16, 2016·Inorganic Chemistry·Mohsen DanaiePhilip D Edmondson
Mar 1, 2016·Nature Communications·Colin OphusPeter Ercius
Feb 10, 2018·Scientific Reports·Emrah YücelenEric G T Bosch
Aug 17, 2020·Physical Review Letters·Chao XuYe Zhu
Jan 15, 2016·Nanoscale·Mark J Polking
May 10, 2017·Ultramicroscopy·Young-Min KimAlbina Y Borisevich
Dec 20, 2017·Inorganic Chemistry·Demie KepaptsoglouRobert Freer
Sep 30, 2017·Chemical Reviews·Feng LinMarca M Doeff
Nov 4, 2021·Journal of the American Chemical Society·Susana Garcia-MartinPatrick M Woodward
Nov 17, 2021·Journal of Physics. Condensed Matter : an Institute of Physics Journal·Hannes ZschiescheGianluigi A Botton