2 papers
cond-mat.str-el1997
Enhancement of Antiferromagnetic Correlations Induced by Nonmagnetic Impurities: Origin and Predictions for NMR Experiments
Markus Laukamp, George Balster Martins, Claudio J. Gazza +5
Spin models that have been proposed to describe dimerized chains, ladders, two dimensional antiferromagnets, and other compounds are here studied when some spins are replaced by sp…
cond-mat.str-el1997
Local Enhancement of Antiferromagnetic Correlations by Nonmagnetic Impurities
George Balster Martins, Markus Laukamp, Jose Riera +1
The local enhancement of antiferromagnetic correlations near vacancies observed in a variety of spin systems is analyzed in a single framework. Variational calculations suggest tha…