Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applications

The structural, electronic, magnetic, and transport properties of LiMgPdSb-type novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) have been studied employing the first-principles calculation derived from density functional theory. From the total energy calculations, it i...

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Main Authors: Roshme Prakash, G. Suganya, G. Kalpana
Format: Article
Language:English
Published: AIP Publishing LLC 2022-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0088553
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author Roshme Prakash
G. Suganya
G. Kalpana
author_facet Roshme Prakash
G. Suganya
G. Kalpana
author_sort Roshme Prakash
collection DOAJ
description The structural, electronic, magnetic, and transport properties of LiMgPdSb-type novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) have been studied employing the first-principles calculation derived from density functional theory. From the total energy calculations, it is found that all these alloys are stable in the cubic α phase, and spin-polarized calculations show that all the alloys favor a ferromagnetic state. In addition, it is ascertained that XRuCrZ (X = Co and Rh; Z = Si and Ge) exhibits half-metallic ferromagnetic property. In addition, the temperature-dependent transport properties have been studied. The calculated dimensionless figure of merit for CoRuCrSi is 0.43. Our results show that these alloys will be suitable for data storage and energy conversion applications.
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spelling doaj.art-114fe18f7f7449a58d6e8bc976674a642022-12-22T03:26:41ZengAIP Publishing LLCAIP Advances2158-32262022-05-01125055223055223-1010.1063/5.0088553Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applicationsRoshme Prakash0G. Suganya1G. Kalpana2Department of Physics, Anna University, Chennai 25, IndiaDepartment of Physics, Anna University, Chennai 25, IndiaDepartment of Physics, Anna University, Chennai 25, IndiaThe structural, electronic, magnetic, and transport properties of LiMgPdSb-type novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) have been studied employing the first-principles calculation derived from density functional theory. From the total energy calculations, it is found that all these alloys are stable in the cubic α phase, and spin-polarized calculations show that all the alloys favor a ferromagnetic state. In addition, it is ascertained that XRuCrZ (X = Co and Rh; Z = Si and Ge) exhibits half-metallic ferromagnetic property. In addition, the temperature-dependent transport properties have been studied. The calculated dimensionless figure of merit for CoRuCrSi is 0.43. Our results show that these alloys will be suitable for data storage and energy conversion applications.http://dx.doi.org/10.1063/5.0088553
spellingShingle Roshme Prakash
G. Suganya
G. Kalpana
Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applications
AIP Advances
title Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applications
title_full Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applications
title_fullStr Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applications
title_full_unstemmed Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applications
title_short Investigation of novel quaternary Heusler alloys XRuCrZ (X = Co, Ni, Rh, and Pd; Z = Si and Ge) via first-principles calculation for spintronics and thermoelectric applications
title_sort investigation of novel quaternary heusler alloys xrucrz x co ni rh and pd z si and ge via first principles calculation for spintronics and thermoelectric applications
url http://dx.doi.org/10.1063/5.0088553
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AT gsuganya investigationofnovelquaternaryheusleralloysxrucrzxconirhandpdzsiandgeviafirstprinciplescalculationforspintronicsandthermoelectricapplications
AT gkalpana investigationofnovelquaternaryheusleralloysxrucrzxconirhandpdzsiandgeviafirstprinciplescalculationforspintronicsandthermoelectricapplications