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Title: Epitaxial stabilization of Sr 3Ir 2O 7 thin films

Abstract

Ruddlesden-Popper type Sr n+1Ir nO 3n+1 compounds are a major focus of condensed matter physics, where the subtle balance between electron-electron correlation, spin–orbit interaction, and crystal field effect brings a host of emergent phenomena. While it is understandable that a canted antiferromagnetic insulating state with an easy-plane anisotropy is developed in Sr 2IrO 4 as the two-dimensional limit of the series, it is intriguing that bilayer Sr 3Ir 2O 7, with slightly higher effective dimensionality, stabilizes c-axis collinear antiferromagnetism. This also renders Sr 3Ir 2O 7 a unique playground to study exotic physics near a critical spin transition point. However, the epitaxial growth of Sr 3Ir 2O 7 is still a challenging task because of the narrow growth window. In our research, we have studied the thermodynamic process during the synthesis of Sr 3Ir 2O 7 thin films. We expanded the synthesis window by mapping out the relationship between the thin film crystal structure and the gas pressure. Furthermore, our work thus provides a more accessible avenue to stabilize metastable materials.

Authors:
 [1];  [1];  [1];  [1];  [2];  [3];  [4];  [4];  [2]; ORCiD logo [2];  [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Charles Univ., Prague (Czech Republic)
  4. Univ. of Washington, Seattle, WA (United States)
Publication Date:
Research Org.:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1525400
Alternate Identifier(s):
OSTI ID: 1511068
Report Number(s):
BNL-211761-2019-JAAM
Journal ID: ISSN 0003-6951
Grant/Contract Number:  
SC0012704; 1047478; SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 114; Journal Issue: 18; Journal ID: ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Yang, Junyi, Hao, Lin, Nanney, Peyton, Noordhoek, Kyle, Meyers, Derek, Horak, Lukas, Sanchez, Joshua, Chu, Jiun -Haw, Nelson, Christie, Dean, Mark. P. M., and Liu, Jian. Epitaxial stabilization of Sr3Ir2O7 thin films. United States: N. p., 2019. Web. doi:10.1063/1.5092614.
Yang, Junyi, Hao, Lin, Nanney, Peyton, Noordhoek, Kyle, Meyers, Derek, Horak, Lukas, Sanchez, Joshua, Chu, Jiun -Haw, Nelson, Christie, Dean, Mark. P. M., & Liu, Jian. Epitaxial stabilization of Sr3Ir2O7 thin films. United States. doi:10.1063/1.5092614.
Yang, Junyi, Hao, Lin, Nanney, Peyton, Noordhoek, Kyle, Meyers, Derek, Horak, Lukas, Sanchez, Joshua, Chu, Jiun -Haw, Nelson, Christie, Dean, Mark. P. M., and Liu, Jian. Mon . "Epitaxial stabilization of Sr3Ir2O7 thin films". United States. doi:10.1063/1.5092614.
@article{osti_1525400,
title = {Epitaxial stabilization of Sr3Ir2O7 thin films},
author = {Yang, Junyi and Hao, Lin and Nanney, Peyton and Noordhoek, Kyle and Meyers, Derek and Horak, Lukas and Sanchez, Joshua and Chu, Jiun -Haw and Nelson, Christie and Dean, Mark. P. M. and Liu, Jian},
abstractNote = {Ruddlesden-Popper type Srn+1IrnO3n+1 compounds are a major focus of condensed matter physics, where the subtle balance between electron-electron correlation, spin–orbit interaction, and crystal field effect brings a host of emergent phenomena. While it is understandable that a canted antiferromagnetic insulating state with an easy-plane anisotropy is developed in Sr2IrO4 as the two-dimensional limit of the series, it is intriguing that bilayer Sr3Ir2O7, with slightly higher effective dimensionality, stabilizes c-axis collinear antiferromagnetism. This also renders Sr3Ir2O7 a unique playground to study exotic physics near a critical spin transition point. However, the epitaxial growth of Sr3Ir2O7 is still a challenging task because of the narrow growth window. In our research, we have studied the thermodynamic process during the synthesis of Sr3Ir2O7 thin films. We expanded the synthesis window by mapping out the relationship between the thin film crystal structure and the gas pressure. Furthermore, our work thus provides a more accessible avenue to stabilize metastable materials.},
doi = {10.1063/1.5092614},
journal = {Applied Physics Letters},
number = 18,
volume = 114,
place = {United States},
year = {2019},
month = {5}
}

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