1 Ocak 2021 Dergi makalesi Açık Erişim

Abdullahi, Yusuf Zuntu; Vatansever, Zeynep Demir; Ersan, Fatih; Akinci, Umit; Akturk, Olcay Uzengi; Akturk, Ethem

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{
  "@context": "https://schema.org/", 
  "@id": 238880, 
  "@type": "ScholarlyArticle", 
  "creator": [
    {
      "@type": "Person", 
      "name": "Abdullahi, Yusuf Zuntu"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Dokuz Eylul Univ, Dept Phys, Fac Sci, Tinaztepe Campus, TR-35390 Izmir, Turkey", 
      "name": "Vatansever, Zeynep Demir"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Adnan Menderes Univ, Dept Phys, TR-09010 Aydin, Turkey", 
      "name": "Ersan, Fatih"
    }, 
    {
      "@type": "Person", 
      "affiliation": "Dokuz Eylul Univ, Dept Phys, Fac Sci, Tinaztepe Campus, TR-35390 Izmir, Turkey", 
      "name": "Akinci, Umit"
    }, 
    {
      "@type": "Person", 
      "name": "Akturk, Olcay Uzengi"
    }, 
    {
      "@type": "Person", 
      "name": "Akturk, Ethem"
    }
  ], 
  "datePublished": "2021-01-01", 
  "description": "Transition metal boro-carbide (TM2BC) structures crystallize in the layered orthorhombic structure in their bulk phases. In this study, however, we find that TM2BC (TM = Cr, Mn) prefer a tetragonal (t) crystal structure in their monolayer phases due to the occurrence of strong sp(2) bonds between the metal and B/C atoms instead of sp(3) + sp(2) bonds which exist in the orthorhombic phase. The calculated energy difference between the orthorhombic and the tetragonal structures based on density functional theory (DFT) is more than 1 eV per unit cell. In addition, t-Cr2BC and t-Mn2BC monolayers are dynamically and thermally stable with their magnetic metal electronic structures. For further investigations, we combine our DFT calculations with the Monte Carlo simulations and find that both t-TM2BC monolayers show ferromagnetic properties. The calculated Curie temperatures are 846 K and 128 K for t-Cr2BC and t-MnBC sheets, respectively. In addition, we examine the magnetic anisotropy energies (MAE) of t-TM2BC monolayers and find that both structures prefer out-of-plane as the easy axis magnetization direction and the applied electric field can easily modulate the MAE of the monolayers. Our theoretical calculations reveal that t-TM2BC (TM = Cr, Mn) sheets have great potential for the future design of controllable spintronic devices with their tunable MAE properties.", 
  "headline": "Ferromagnetic TM2BC (TM = Cr, Mn) monolayers for spintronic devices with high Curie temperature", 
  "identifier": 238880, 
  "image": "https://aperta.ulakbim.gov.tr/static/img/logo/aperta_logo_with_icon.svg", 
  "license": "http://www.opendefinition.org/licenses/cc-by", 
  "name": "Ferromagnetic TM2BC (TM = Cr, Mn) monolayers for spintronic devices with high Curie temperature", 
  "url": "https://aperta.ulakbim.gov.tr/record/238880"
}