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Tuning of Magnetism and Band Gap in 2D-Chromia via Strain Engineering

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Title Tuning of Magnetism and Band Gap in 2D-Chromia via Strain Engineering
 
Creator Singla, Rahul
Singla, Renu
Kumar, Pankaj
Chauhan, Yogesh
Saini, G S S
Kashyap, Manish K
 
Subject DFT
Ferromagnetism
Spintronics
 
Description 915-918
The area of intrinsic two-dimensional (2D) materials is spreading widely day by day due to their easily availability and
interesting applications. As a newly exfoliated 2D material from bulk Cr2O3 mineral, 2D-Chromia is most far ultrathin
magnetic indirect band gap semiconductor with low Curie Temperature (TC). For the present work, we have carried out the
detailed structural analysis of 2D-Chromia by prefacing strain via means of density functional theory (DFT). 2D-Chromia in
pristine form comes out to ferromagnetic with considerable total spin magnetic moment of 12 μB per unit cell and large band
gap (0.72/3.71 eV in majority/minority spin channel). But the presence of low TC and large band gap limits its applications.
Thus, in present work, we have checked the dependence of magnetic state and band gap on tensile and compressive strains.
Our results indicate that band gap depends strongly on both the strains but magnetic ground state remains unaffected on
applying strain. These findings summarize that the resulting 2D-Chromia under study has broad application prospective in
spintronics, transistors, and memory-based devices.
 
Date 2023-10-04T05:30:00Z
2023-10-04T05:30:00Z
2023-10
 
Type Article
 
Identifier 0975-0959 (Online); 0301-1208 (Print)
http://nopr.niscpr.res.in/handle/123456789/62681
https://doi.org/10.56042/ijpap.v61i11.4472
 
Language en
 
Publisher NIScPR-CSIR,India
 
Source IJPAP Vol.61(11) (November 2023]