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Tuning magnetic and optical properties through strain in epitaxial LaCrO3 thin films

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/5.0058678· OSTI ID:1868299
 [1];  [2];  [3];  [3];  [4];  [4];  [4];  [1];  [1];  [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); New Mexico State Univ., Las Cruces, NM (United States)
  3. Sungkyunkwan Univ., Suwon (South Korea)
  4. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
+ Show Author Affiliations
We report on the effect of epitaxial strain on magnetic and optical properties of perovskite LaCrO3 (LCO) single crystal thin films. Epitaxial LCO thin films are grown by pulsed laser deposition on proper choice of substrates to impose different strain states. A combined experimental and theoretical approach is used to demonstrate the direct correlation between lattice-strain and functional properties. The magnetization results show that the lattice anisotropy plays a critical role in controlling the magnetic behavior of LCO films. The strain induced tetragonality in the film lattice strongly affects the optical transitions and charge transfer gap in LCO. This study opens possibilities to tailor the functional properties of LCO and related materials by strain engineering in epitaxial growth.
Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
LDRD; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1868299
Alternate ID(s):
OSTI ID: 1821891
Report Number(s):
LA-UR-21-30199
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 7 Vol. 119; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

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Related Subjects

36 MATERIALS SCIENCE
Density functional theory
Epitaxy
Magnetism
Material Science
Optical properties
Perovskites
Pulsed laser deposition
Semiconductors
Thin films