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

Title: Observing a previously hidden structural-phase transition onset through heteroepitaxial cap response

Journal Article · · Proceedings of the National Academy of Sciences of the United States of America
 [1];  [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [2];  [3];  [4];  [5]; ORCiD logo [6];  [5]
  1. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200433 Shanghai, China,
  2. Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831,
  3. Center for Nanophase Materials Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831,
  4. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200433 Shanghai, China,, Institute for Nanoelectronic Devices and Quantum Computing, Fudan University, 200433 Shanghai, China,
  5. State Key Laboratory of Surface Physics and Department of Physics, Fudan University, 200433 Shanghai, China,, Institute for Nanoelectronic Devices and Quantum Computing, Fudan University, 200433 Shanghai, China,, Collaborative Innovation Center of Advanced Microstructures, 210093 Nanjing, China,
  6. Department of Physics and Astronomy, Louisiana State University, Baton Rouge, LA 70808

Significance We provide an approach to study structural transitions by using appropriate heteroepitaxial caps. Previously unobservable phase transitions that involve small changes in lattice constants, but may have important impact on the physical properties of the material, can now be detected in real space. Using the coherent nanotwinning waves of epitaxial La 0.7 Sr 0.3 MnO 3 /SrTiO 3 thin films as a sensitive detector, we are able to uncover the onset stage of the cubic-to-tetragonal structural-phase transition of SrTiO 3 in real space. Researchers involved in the study of material properties as well as technologists in a variety of industries, such as electronics, will greatly benefit from this approach.

Sponsoring Organization:
USDOE
Grant/Contract Number:
SC0002136
OSTI ID:
1495315
Alternate ID(s):
OSTI ID: 1818758
Journal Information:
Proceedings of the National Academy of Sciences of the United States of America, Journal Name: Proceedings of the National Academy of Sciences of the United States of America Journal Issue: 10 Vol. 116; ISSN 0027-8424
Publisher:
Proceedings of the National Academy of SciencesCopyright Statement
Country of Publication:
United States
Language:
English

References (27)

Influence of defects on the critical behavior at the 105 K structural phase transition of SrTiO 3 : On the origin of the two length scale critical fluctuations journal July 2002
Structure and Properties of Functional Oxide Thin Films: Insights From Electronic-Structure Calculations journal July 2011
Insulator-metal transition and giant magnetoresistance in La 1 − x Sr x MnO 3 journal May 1995
Origin of high transport spin polarization in La 0.7 Sr 0.3 MnO 3 : Direct evidence for minority spin states journal April 2001
Phase Diagram of Tetragonal Manganites journal April 2000
Shear-strain-induced low symmetry phase and domain ordering in epitaxial La0.7Sr0.3MnO3 thin films journal June 2008
Modeling of twinning in epitaxial (001)-oriented La0.67Sr0.33MnO3 thin films journal June 2005
Dynamic Fluctuations and Static Speckle in Critical X-Ray Scattering from SrTiO 3 journal February 2007
Cubic to Tetragonal Phase Transition of SrTiO3 under Epitaxial Stress: An X-Ray Backscattering Study journal October 2000
Domain patterns in epitaxial rhombohedral ferroelectric films. I. Geometry and experiments journal March 1998
Tunable Metallicity of the La 5 / 8 Ca 3 / 8 MnO 3 ( 001 ) Surface by an Oxygen Overlayer journal February 2009
Thickness dependent electronic structure of La0.6Sr0.4MnO3 layer in SrTiO3/La0.6Sr0.4MnO3/SrTiO3 heterostructures studied by hard x-ray photoemission spectroscopy journal February 2009
Neutron- and x-ray-scattering study of the two length scales in the critical fluctuations of SrTiO 3 journal November 1995
The phase transition of strontium titanate
  • Cowley, Roger Arthur
  • Philosophical Transactions of the Royal Society of London. Series A: Mathematical, Physical and Engineering Sciences, Vol. 354, Issue 1720, p. 2799-2814 https://doi.org/10.1098/rsta.1996.0130
journal December 1996
Structural Phase Transitions journal November 2006
SrTiO 3 Displacive Transition Revisited via Coherent X-Ray Diffraction journal March 2007
Are there two length scales at phase transitions? journal January 1996
Evidence of Orbital Reconstruction at Interfaces in Ultrathin La 0.67 Sr 0.33 MnO 3 Films journal April 2008
Central peak and narrow component in x-ray scattering measurements near the displacive phase transition in SrTiO 3 journal September 2008
X-ray scattering study of the R-point instability in SrTiO 3 journal July 1986
Heterostructures of La0.67Sr0.33MnO3/SrTiO3/La0.67Sr0.33MnO3 grown by pulsed laser deposition on (001) SrTiO3 journal August 2000
Depth dependence of the structural phase transition of SrTiO 3 studied with β -NMR and grazing incidence x-ray diffraction journal June 2011
Observation of a Near-Surface Structural Phase Transition in SrTiO 3 by Optical Second Harmonic Generation journal October 2000
Structural Defects and the Origin of the Second Length Scale in SrTiO 3 journal March 1998
Near-Surface Structural Phase Transition of SrTiO 3 Studied with Zero-Field β -Detected Nuclear Spin Relaxation and Resonance journal April 2006
Critical Neutron Scattering in SrTi O 3 and KMn F 3 journal December 1972
Electron diffraction studies of phonon and static disorder in SrTiO 3 journal April 2000