• Artículo
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      Electronic structure of Ca Cu2 O3: Spin ladder versus one-dimensional spin chain 

      Bordas, Esther; Graaf, Coen de; Caballol, Rosa; Jiménez Calzado, Carmen (American Physical Society, 2005)
      Quantum chemical calculations on embedded cluster models have been performed to extract accurate estimates of the magnetic ...
    • Artículo
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      Four-spin cyclic exchange in spin ladder cuprates 

      Jiménez Calzado, Carmen; Graaf, Coen de; Bordas, Esther; Caballol, Rosa; Malrieu, J.P. (American Physical Society, 2003)
      The four-spin cyclic exchange term Jring of three spin-ladder cuprates (SrCu2O3, Sr2Cu3O5, and CaCu2O3) has been calculated ...