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Antiferromagnetic-ferromagnetic crossover in La0.5Pr0.5Mn2Si2 and its consequences on magnetoelastic and magnetocaloric properties

Emre, B.; Aksoy, S.; Posth, O.; Acet, M.; Duman, E.; Lindner, J.; Elerman, Y.


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{
  "DOI": "10.1103/PhysRevB.78.144408", 
  "abstract": "La0.5Pr0.5Mn2Si2 exhibits an antiferromagnetic-ferromagnetic transition caused by the crossover of the critical distance between Mn atoms on changing temperature. Applying a magnetic field in the antiferromagnetic state can cause a field-induced transformation to the ferromagnetic state at a critical field, which increases with decreasing temperature. We study here with magnetization and strain measurements the magnetic-field-induced strain associated with the field-induced transformation and magnetocaloric effects close to the transition temperature. We also examine the temperature dependence of the critical field and find from magnetization and ferromagnetic resonance measurements that short-range ferromagnetic correlation among the rare earth and Mn-sublattices occur at low temperatures. At low temperatures, this causes a decrease in the critical field for the crossover from antiferromagnetic to ferromagnetic coupling with decreasing temperature.", 
  "author": [
    {
      "family": "Emre", 
      "given": " B."
    }, 
    {
      "family": "Aksoy", 
      "given": " S."
    }, 
    {
      "family": "Posth", 
      "given": " O."
    }, 
    {
      "family": "Acet", 
      "given": " M."
    }, 
    {
      "family": "Duman", 
      "given": " E."
    }, 
    {
      "family": "Lindner", 
      "given": " J."
    }, 
    {
      "family": "Elerman", 
      "given": " Y."
    }
  ], 
  "container_title": "PHYSICAL REVIEW B", 
  "id": "39927", 
  "issue": "14", 
  "issued": {
    "date-parts": [
      [
        2008, 
        1, 
        1
      ]
    ]
  }, 
  "title": "Antiferromagnetic-ferromagnetic crossover in La0.5Pr0.5Mn2Si2 and its consequences on magnetoelastic and magnetocaloric properties", 
  "type": "article-journal", 
  "volume": "78"
}
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