DOE PAGES title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Learning from Imperfections: Predicting Structure and Thermodynamics from Atomic Imaging of Fluctuations

Journal Article · · ACS Nano

In materials characterization, traditionally a single experimental sample is used to derive information about a single point in the composition space, while the imperfections, impurities, and stochastic details of material structure are deemed irrelevant or complicating factors in the analysis. Here we demonstrate that atomic-scale studies of a single nominal composition can provide information about microstructures and thermodynamic response over a finite area of chemical space. Using the principles of statistical inference, we develop a framework for incorporating structural fluctuations into statistical mechanical models and use it to solve the inverse problem of deriving effective interatomic interactions responsible for elemental segregation in a La5/8Ca3/8MnO3 thin film. Here, the results are further analyzed by a variational autoencoder to detect anomalous behavior in the composition phase diagram. This study provides a framework for creating generative models from a combination of multiple experimental data and provides direct insight into the driving forces for cation segregation in manganites.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC05-00OR22725
OSTI ID:
1505330
Journal Information:
ACS Nano, Vol. 13, Issue 1; ISSN 1936-0851
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 22 works
Citation information provided by
Web of Science

References (56)

Fulfilling the promise of the materials genome initiative with high-throughput experimental methodologies journal March 2017
Informatics Infrastructure for the Materials Genome Initiative journal July 2016
Phase development and electrical property analysis of pulsed laser deposited Pb(Mg1/3Nb2/3)O3–PbTiO3 (70/30) epitaxial thin films journal November 1998
Relaxor ferroelectrics journal December 1987
Atomic-scale images of charge ordering in a mixed-valence manganite journal April 2002
A computational high-throughput search for new ternary superalloys journal January 2017
Perspective: Composition–structure–property mapping in high-throughput experiments: Turning data into knowledge journal May 2016
Rapid Identification of Areas of Interest in Thin Film Materials Libraries by Combining Electrical, Optical, X-ray Diffraction, and Mechanical High-Throughput Measurements: A Case Study for the System Ni–Al journal November 2014
On-the-fly machine-learning for high-throughput experiments: search for rare-earth-free permanent magnets journal September 2014
The high-throughput highway to computational materials design journal February 2013
A high-throughput infrastructure for density functional theory calculations journal June 2011
AFLOWLIB.ORG: A distributed materials properties repository from high-throughput ab initio calculations journal June 2012
A polymer dataset for accelerated property prediction and design journal March 2016
Finding Density Functionals with Machine Learning journal June 2012
Fast and Accurate Modeling of Molecular Atomization Energies with Machine Learning journal January 2012
Statistical inference and adaptive design for materials discovery journal June 2017
Bayesian Optimization for Materials Design book December 2015
Perspective: Codesign for materials science: An optimal learning approach journal April 2016
Verification of the Crooks fluctuation theorem and recovery of RNA folding free energies journal September 2005
Experimental Free Energy Surface Reconstruction from Single-Molecule Force Spectroscopy using Jarzynski’s Equality journal August 2007
Equilibrium free energies from non-equilibrium trajectories with relaxation fluctuation spectroscopy journal May 2018
Surfaces of the perovskite manganites La 1 − x Ca x MnO 3 journal May 1999
XPS investigation of Mn valence in lanthanum manganite thin films under variation of oxygen content journal April 2006
Cationic and charge segregation in La2/3Ca1/3MnO3 thin films grown on (001) and (110) SrTiO3 journal September 2008
Cation Size Mismatch and Charge Interactions Drive Dopant Segregation at the Surfaces of Manganite Perovskites journal May 2013
Unsupervised learning of phase transitions: From principal component analysis to variational autoencoders journal August 2017
Deep Learning of Atomically Resolved Scanning Transmission Electron Microscopy Images: Chemical Identification and Tracking Local Transformations journal October 2016
Evaluating bag-of-visual-words representations in scene classification conference January 2007
Knowledge Extraction from Atomically Resolved Images journal October 2017
Rigorous force field optimization principles based on statistical distance minimization journal October 2015
Excess properties of liquid mixtures from computer simulation: a coupling-parameter approach to the determination of their dependence on molecular asymmetry journal May 1991
Learning phase transitions from dynamics journal August 2018
Surface reconstructions and modified surface states in L a 1 − x C a x Mn O 3 journal October 2018
Surface Control of Epitaxial Manganite Films via Oxygen Pressure journal February 2015
Growth Mode Transition in Complex Oxide Heteroepitaxy: Atomically Resolved Studies journal April 2016
Feature extraction via similarity search: application to atom finding and denoising in electron and scanning probe microscopy imaging journal March 2018
Tunable Metallicity of the La 5 / 8 Ca 3 / 8 MnO 3 ( 001 ) Surface by an Oxygen Overlayer journal February 2009
Consistent Integration of Experimental and Ab Initio Data into Effective Physical Models journal October 2017
Revised effective ionic radii and systematic studies of interatomic distances in halides and chalcogenides journal September 1976
Short-range order in two-dimensional binary alloys journal January 2003
Fast oxygen diffusion in A-site ordered perovskites journal January 2007
A -Site Ordering versus Electronic Inhomogeneity in Colossally Magnetoresistive Manganite Films journal September 2006
Sr Segregation in Perovskite Oxides: Why It Happens and How It Exists journal August 2018
Effects of annealing on structure and composition of LSMO thin films journal November 2015
Statistically optimal analysis of samples from multiple equilibrium states journal September 2008
Phase diagram studies in the quasi binary systems LaMnO 3 –SrMnO 3 and LaMnO 3 –CaMnO 3 journal May 2000
New tool in the box journal February 2017
Machine learning phases of matter journal February 2017
Discovering phases, phase transitions, and crossovers through unsupervised machine learning: A critical examination journal June 2017
Chemically induced Jahn–Teller ordering on manganite surfaces journal July 2014
CMR manganites: physics, thin films and devices journal April 2003
The physics of manganites: Structure and transport journal August 2001
In situ study of activation and de-activation of LSM fuel cell cathodes – Electrochemistry and surface analysis of thin-film electrodes journal October 2012
Development of lanthanum strontium manganite perovskite cathode materials of solid oxide fuel cells: a review journal November 2008
Very large magnetoresistance and coherent switching in half-metallic manganite tunnel junctions journal June 2000
Application of spherical indentation and the materials knowledge system framework to establishing microstructure-yield strength linkages from carbon steel scoops excised from high-temperature exposed components journal February 2018

Cited By (1)