Abstract <p>This work presents a simulation of the magnetocaloric effect (MCE) for Mn-doped topological insulator Bi<sub>2</sub>Se<sub>3</sub> thin films using phenomenological model (PM). There is a good simulation of experimental magnetization for the Bi/Mn = 12.5 and Bi/Mn = 23.6 samples in low magnetic field along 〈1<InlineEquation ID="IEq1"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11504_2025_6101_Article_IEq1.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="10" /> </InlineMediaObject> <EquationSource Format="TEX">\(\bar {1}\)</EquationSource> <!--PhysChA2470370Alamri-m1--> </InlineEquation>00〉 direction. The MCE parameters for the Bi/Mn = 12.5 and Bi/Mn = 23.6 samples in low magnetic field shift along 〈1<InlineEquation ID="IEq2"> <InlineMediaObject> <ImageObject Color="BlackWhite" FileRef="11504_2025_6101_Article_IEq2.gif" Format="GIF" Height="16" Rendition="HTML" Resolution="72" Type="Linedraw" Width="10" /> </InlineMediaObject> <EquationSource Format="TEX">\(\bar {1}\)</EquationSource> <!--PhysChA2470370Alamri-m2--> </InlineEquation>00〉 direction has been determined. The high Mn content in Bi/Mn = 12.5 sample enhances MCE parameters more than Mn content lower sample. The MCE for Bi/Mn = 12.5 and Bi/Mn = 23.6 samples show practical use for cooling system in very low temperatures.</p>

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Magnetocaloric Effect in Mn-Doped Topological Insulator Bi2Se3 Thin Films

  • Hatem R. Alamri,
  • Mahmoud A. Hamad

摘要

Abstract

This work presents a simulation of the magnetocaloric effect (MCE) for Mn-doped topological insulator Bi2Se3 thin films using phenomenological model (PM). There is a good simulation of experimental magnetization for the Bi/Mn = 12.5 and Bi/Mn = 23.6 samples in low magnetic field along 〈1 \(\bar {1}\) 00〉 direction. The MCE parameters for the Bi/Mn = 12.5 and Bi/Mn = 23.6 samples in low magnetic field shift along 〈1 \(\bar {1}\) 00〉 direction has been determined. The high Mn content in Bi/Mn = 12.5 sample enhances MCE parameters more than Mn content lower sample. The MCE for Bi/Mn = 12.5 and Bi/Mn = 23.6 samples show practical use for cooling system in very low temperatures.