Effect of varying laser energy density at LaScO<sub>3</sub>/SrTiO<sub>3</sub> interface

The genesis of conductivity at the interface between two insulating perovskite oxides is the subject of rigorous investigation within the scientific community. The emergence of conductivity observed at the interface between insulating LaScO<sub>3</sub>(LSO) and SrTiO<sub>3</sub>(STO) is attributed to the phenomenon known as polar catastrophe. In this study, we fabricated LSO films on TiO<sub>2</sub>-terminated STO substrates using the pulsed laser deposition technique. The investigation revealed a correlation between the film resistance and the variation in laser energy density during the deposition process, emphasizing the influence of energy density modulation on the electronic properties of the films. Also, the effect of cation non-stoichiometry in LSO films on mobility is examined and compared with the previously documented LAO/STO and LVO/STO interfaces.

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Publication Details

Journal
Journal of Physics Condensed Matter
Published
2025-02-21
DOI
https://doi.org/10.1088/1361-648x/adb922
Citations
1
Primary Topic
Electronic and Structural Properties of Oxides
Type
article
Field-Weighted Citation Impact
0.52
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article

Effect of varying laser energy density at LaScO3/SrTiO3 interface

V. K. Malik, C. S. Yadav, Simran Nehra, Anjana Dogra et al.
1 citations
Journal of Physics Condensed Matter
Electronic and Structural Properties of Oxides
0.52
article

Effect of varying laser energy density at LaScO3/SrTiO3 interface

V. K. Malik, C. S. Yadav, Simran Nehra, Anjana Dogra, Pooja Manral, Sunil Gangwar, Shikha Shrivastava
article en
1 citations

Abstract

The genesis of conductivity at the interface between two insulating perovskite oxides is the subject of rigorous investigation within the scientific community. The emergence of conductivity observed at the interface between insulating LaScO<sub>3</sub>(LSO) and SrTiO<sub>3</sub>(STO) is attributed to the phenomenon known as polar catastrophe. In this study, we fabricated LSO films on TiO<sub>2</sub>-terminated STO substrates using the pulsed laser deposition technique. The investigation revealed a correlation between the film resistance and the variation in laser energy density during the deposition process, emphasizing the influence of energy density modulation on the electronic properties of the films. Also, the effect of cation non-stoichiometry in LSO films on mobility is examined and compared with the previously documented LAO/STO and LVO/STO interfaces.

Journal of Physics Condensed MatterVol. 37(15)
Indian Institute of Technology Roorkee (IN), Council of Scientific and Industrial Research (IN), CSIR National Physical Laboratory of India (IN), Indian Institute of Technology Mandi (IN), Academy of Scientific and Innovative Research (IN)
Affordable and clean energy
Openalex Percentile: Top 42%
Electronic and Structural Properties of Oxides
0.52
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Effect of varying laser energy density at LaScO<sub>3</sub>/SrTiO<sub>3</sub> interface — V. K. Malik, C. S. Yadav, et al. · Journal of Physics Condensed Matter (2025) | TGRS Research Map | TGRS