10.34863/BG5N-4S68
El Baggari, Ismail
Ismail
El Baggari
https://orcid.org/0000-0001-6554-9289
Baek, David
David
Baek
https://orcid.org/0000-0002-0922-6773
Cornell University
Zachman, Michael
Michael
Zachman
https://orcid.org/0000-0003-1910-1357
Cornell University
Lu, Di
Di
Lu
https://orcid.org/0000-0003-1177-5672
Stanford University
SLAC National Accelerator Laboratory
Hikita, Yasuyuki
Yasuyuki
Hikita
https://orcid.org/0000-0002-7748-8329
SLAC National Accelerator Laboratory
Hwang, Harold
Harold
Hwang
SLAC National Accelerator Laboratory
Nowadnick, Elizabeth
Elizabeth
Nowadnick
https://orcid.org/0000-0003-3029-2035
University of California, Merced
Kourkoutis, Lena
Lena
Kourkoutis
https://orcid.org/0000-0002-1303-1362
Cornell University
Dataset: Charge order textures induced by non-linear couplings in a half-doped manganite
PARADIM, an NSF Materials Innovation Platform
2021
Dataset
FOS: Materials engineering
FOS: Physical sciences
FOS: Chemical sciences
Creative Commons Attribution Non Commercial No Derivatives 4.0 International
Raw data associated with publication. The self-organization of strongly interacting electrons into superlattice structures underlies the properties of many quantum materials. How these electrons arrange within the superlattice dictates what symmetries are broken and what ground states are stabilized. Here we show that cryogenic scanning transmission electron microscopy (cryo-STEM) enables direct mapping of local symmetries and order at the intra-unit-cell level in the model charge-ordered system Nd1/2Sr1/2MnO3. In addition to imaging the prototypical site-centered charge order, we discover the nanoscale coexistence of an exotic intermediate state which mixes site and bond order and breaks inversion symmetry. We further show that nonlinear coupling of distinct lattice modes controls the selection between competing ground states. The results demonstrate the importance of lattice coupling for understanding and manipulating the character of electronic self- organization and that cryo-STEM can reveal local order in strongly correlated systems at the atomic scale. keywords: cryo-STEM, STEM, cryomicroscopy, manganite, quantum materials, PARADIM
National Science Foundation
https://doi.org/10.13039/100000001
1539918
MIP: Platform for the Accelerated Realization, Analysis, and Discovery of Interface Materials (PARADIM)