Magnetic properties of the low-doped high-T-c cuprates are investigated based on the numerical diagonalization of the finite cluster t-J model. We show the pseudogap behavior of the temperature dependence of the NMR relaxation rate, neutron scattering intensity and magnetic susceptibility. We also discuss on the origin of the gap-like behavior based on the calculated spin correlation functions. (C) 2000 Elsevier Science B.V. All rights reserved.
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, RJ, Brazil
Univ Utrecht, Inst Theoret Phys, Ctr Extreme Matter & Emergent Phenomena, Princetonpl 5, NL-3584 CC Utrecht, NetherlandsUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, RJ, Brazil
Arouca, R.
Marino, E. C.
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Univ Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Inst Fis, CP 68528, BR-21941972 Rio De Janeiro, RJ, Brazil
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Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil
Marino, E. C.
Correa Jr, Reginaldo O.
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Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil
Correa Jr, Reginaldo O.
Arouca, R.
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Univ Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, BrazilUniv Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil
Arouca, R.
Nunes, Lizardo H. C. M.
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Univ Fed Sao Joao del Rei, Dept Ciencias Nat, BR-36301000 Sao Joao Del Bei, MG, BrazilUniv Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil
Nunes, Lizardo H. C. M.
Sergio Alves, Van
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Univ Fed Para, Fac Fis, BR-66075110 Belem, Para, BrazilUniv Fed Rio de Janeiro, Inst Fis, BR-21941972 Rio De Janeiro, RJ, Brazil