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      https://www.ias.ac.in/article/fulltext/boms/043/0081

    • Keywords

       

      Structural properties; electronic structure; magnetic properties; thermodynamic properties.

    • Abstract

       

      RE$_2$Cu$_2$Cd (RE $=$ heavy rare earth elements: Dy, Ho, Er, Tm) intermetallics show the interesting physical, magnetic and chemical properties with reference to magnetocaloric effect. To explore the relevant complex performance of RE$_2$Cu$_2$Cd materials, which crystallizes in Mo$_2$B$_2$Fe-type structure with space group P4/$mbm$; electronic, magnetic and thermodynamic properties have been studied using first principle theory. Electronic properties, i.e. spin-polarized electron dispersion curves (band structure) and density of state calculations showthat (Dy/Ho/Er/Tm)$_2$Cu$_2$Cd compounds aremetallic with dominant character of Dy-f spin down channels. Whereas magnetic and electron spin-polarization calculations show that studied materials behave like metallic ferromagnet having nearly fully spin-polarized characteristics. The effect of temperature on bulk modulus, $B$, volume of unit cell, $V$, entropy, $S$ and specific heat, $C_{\rm v}$ has also been studied using quasi-harmonic Debye model.

    • Author Affiliations

       

      NAVEEN KUMAR1 SACHIN KUMAR1 KAMNA YADAV1 ARVIND KUMAR2 PAWAN K SINGH2 NEELABH SRIVASTAVA3 RISHI P SINGH4

      1. Department of Physics, M.M.H. College, C.C.S. University Meerut, Meerut 201001, India
      2. Materials Science Research Lab (Theory and Experimental), Department of Physics, A.R.S.D. College, University of Delhi, New Delhi 110021, India
      3. Department of Physics, School of Physical Sciences, Mahatma Gandhi Central University, Motihari 845401, India
      4. Quantum Computational Lab, Department of Physics, S.S.V. College, C.C.S. University Meerut, Meerut 245101, India
    • Dates

       
  • Bulletin of Materials Science | News

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