Mechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculation

The mechanical and electronic properties of NiCo2O4 crystal under high pressure are explored based on the density functional theory method. The pressure in the range from 0 to 50GPa is applied to NiCo2O4 and the behaviour concerning electronic properties is studied. The energy band gap of NiCo2O4 gr...

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Main Authors: Nagarajan Veerappan, Padmashri Karthigayan, Chandiramouli Ramanathan
Format: Article
Language:English
Published: University of Novi Sad 2023-09-01
Series:Processing and Application of Ceramics
Subjects:
Online Access:https://doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312303314N.pdf
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author Nagarajan Veerappan
Padmashri Karthigayan
Chandiramouli Ramanathan
author_facet Nagarajan Veerappan
Padmashri Karthigayan
Chandiramouli Ramanathan
author_sort Nagarajan Veerappan
collection DOAJ
description The mechanical and electronic properties of NiCo2O4 crystal under high pressure are explored based on the density functional theory method. The pressure in the range from 0 to 50GPa is applied to NiCo2O4 and the behaviour concerning electronic properties is studied. The energy band gap of NiCo2O4 gradually decreases from 2.196 eV (0GPa) to 1.785 eV (50GPa). The elastic constants for cubic NiCo2O4 are calculated and bulk, shear and Young’s modulus are further computed. Furthermore, Cauchy’s pressure, Pugh’s criterion and Pois-son’s ratio of NiCo2O4 are calculated and reported under high pressure. The NiCo2O4 exhibits ductile property under high pressure, which is evident from Pugh’s criterion. In addition, hardness and anisotropy factor is also calculated and reported.
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spelling doaj.art-3cbf32d6473d4f8ebbb18b2e386f2a102023-11-02T13:30:51ZengUniversity of Novi SadProcessing and Application of Ceramics1820-61312406-10342023-09-0117331432010.2298/PAC2303314NMechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculationNagarajan Veerappan0Padmashri Karthigayan1Chandiramouli Ramanathan2School of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, IndiaSchool of Mechanical Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, IndiaSchool of Electrical & Electronics Engineering, SASTRA Deemed University, Tirumalaisamudram, Thanjavur, IndiaThe mechanical and electronic properties of NiCo2O4 crystal under high pressure are explored based on the density functional theory method. The pressure in the range from 0 to 50GPa is applied to NiCo2O4 and the behaviour concerning electronic properties is studied. The energy band gap of NiCo2O4 gradually decreases from 2.196 eV (0GPa) to 1.785 eV (50GPa). The elastic constants for cubic NiCo2O4 are calculated and bulk, shear and Young’s modulus are further computed. Furthermore, Cauchy’s pressure, Pugh’s criterion and Pois-son’s ratio of NiCo2O4 are calculated and reported under high pressure. The NiCo2O4 exhibits ductile property under high pressure, which is evident from Pugh’s criterion. In addition, hardness and anisotropy factor is also calculated and reported.https://doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312303314N.pdfnico2o4high pressurepugh’s criterionhardnessenergy gap
spellingShingle Nagarajan Veerappan
Padmashri Karthigayan
Chandiramouli Ramanathan
Mechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculation
Processing and Application of Ceramics
nico2o4
high pressure
pugh’s criterion
hardness
energy gap
title Mechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculation
title_full Mechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculation
title_fullStr Mechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculation
title_full_unstemmed Mechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculation
title_short Mechanical and electronic properties of NiCo2O4 under high pressure: A first-principles calculation
title_sort mechanical and electronic properties of nico2o4 under high pressure a first principles calculation
topic nico2o4
high pressure
pugh’s criterion
hardness
energy gap
url https://doiserbia.nb.rs/img/doi/1820-6131/2023/1820-61312303314N.pdf
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AT padmashrikarthigayan mechanicalandelectronicpropertiesofnico2o4underhighpressureafirstprinciplescalculation
AT chandiramouliramanathan mechanicalandelectronicpropertiesofnico2o4underhighpressureafirstprinciplescalculation