213 citations · 1.3k across the 34 of their papers we have counts for
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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…
High-field Electron Spin Resonance of Cu_{1-x}Zn_{x}GeO_{3}
A. K. Hassan, L. A. Pardi, G. B. Martins +2
High-Field Electron Spin Resonance measurements were made on powder samples of Cu_{1-x}Zn_{x}GeO_{3} (x=0.00, 0.01, 0.02, 0.03 and 0.05) at different frequencies (95, 110, 190, 220…
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…