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A new class of ferromagnetic semiconductor: Copper molybdate organic-inorganic compound with phenanthroline organic linkers

Journal Article


Abstract


  • A three-dimensional (3D) framework of covalently-bonded layers of bimetallic inorganic oxide, CuMoO4, interlinked by electron-rich organic ligands, which is semiconducting and also ferromagnetic, has been prepared. The structure [Cu(3,8-phenanthroline)0.5MoO4] consists of molybdate tetrahedra corner-shared with clusters of edge-sharing {CuO5N} octahedra. The injection of charge carriers into the inorganic layers by phenanthroline induces different magnetic orderings at different temperatures, orderings which are not found in the structurally-similar [Cu(4,4ʹ-bipyridine)0.5MoO4]. The temperature dependence of the susceptibility shows two low temperature magnetic transitions: weakly ferromagnetic-coupled spins below 15 K coexisting with an antiferromagnetic structure below 10 K. Specific heat capacity shows a finite ground-state electronic specific heat coefficient, γ = 0.094 J/mol·K2, that is higher than that of the bipyridine counterpart (0.068 J/mol·K2), confirming an increase in the electronic density-of-states in the phenanthroline system.

Authors


  •   Islah-U-Din, - (external author)
  •   Cong, Shen V. (external author)
  •   Jameson, Geoffrey B. (external author)
  •   Raymond, Sebastiampillai G. (external author)
  •   Lee, Geunsik (external author)
  •   Park, In K. (external author)
  •   Wang, Xiaolin
  •   Waterland, Mark R. (external author)
  •   Tallon, Jeffrey L. (external author)

Publication Date


  • 2020

Citation


  • Islah-U-Din, , Cong, S. V., Jameson, G. B., Raymond, S. G., Lee, G., Park, I. K., Wang, X., Waterland, M. R. & Tallon, J. L. (2020). A new class of ferromagnetic semiconductor: Copper molybdate organic-inorganic compound with phenanthroline organic linkers. Journal of Magnetism and Magnetic Materials, 508

Scopus Eid


  • 2-s2.0-85083035183

Volume


  • 508

Place Of Publication


  • Netherlands

Abstract


  • A three-dimensional (3D) framework of covalently-bonded layers of bimetallic inorganic oxide, CuMoO4, interlinked by electron-rich organic ligands, which is semiconducting and also ferromagnetic, has been prepared. The structure [Cu(3,8-phenanthroline)0.5MoO4] consists of molybdate tetrahedra corner-shared with clusters of edge-sharing {CuO5N} octahedra. The injection of charge carriers into the inorganic layers by phenanthroline induces different magnetic orderings at different temperatures, orderings which are not found in the structurally-similar [Cu(4,4ʹ-bipyridine)0.5MoO4]. The temperature dependence of the susceptibility shows two low temperature magnetic transitions: weakly ferromagnetic-coupled spins below 15 K coexisting with an antiferromagnetic structure below 10 K. Specific heat capacity shows a finite ground-state electronic specific heat coefficient, γ = 0.094 J/mol·K2, that is higher than that of the bipyridine counterpart (0.068 J/mol·K2), confirming an increase in the electronic density-of-states in the phenanthroline system.

Authors


  •   Islah-U-Din, - (external author)
  •   Cong, Shen V. (external author)
  •   Jameson, Geoffrey B. (external author)
  •   Raymond, Sebastiampillai G. (external author)
  •   Lee, Geunsik (external author)
  •   Park, In K. (external author)
  •   Wang, Xiaolin
  •   Waterland, Mark R. (external author)
  •   Tallon, Jeffrey L. (external author)

Publication Date


  • 2020

Citation


  • Islah-U-Din, , Cong, S. V., Jameson, G. B., Raymond, S. G., Lee, G., Park, I. K., Wang, X., Waterland, M. R. & Tallon, J. L. (2020). A new class of ferromagnetic semiconductor: Copper molybdate organic-inorganic compound with phenanthroline organic linkers. Journal of Magnetism and Magnetic Materials, 508

Scopus Eid


  • 2-s2.0-85083035183

Volume


  • 508

Place Of Publication


  • Netherlands