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Suppression of Antiferromagnetic Order by Light Hole Doping in La2Cu1-xLixO4: A L139a NQR Study
Abstract
139La nuclear quadrupole resonance measurements in lightly doped La2Cu1-xLixO4 have been performed to reveal the dependence of the magnetic properties of the antiferromagnetic CuO2 planes on the character of the doped holes and their interactions with the dopant. A detailed study shows that the magnetic properties are remarkably insensitive to the character of the dopant impurity. This indicates that the added holes form previously unrecognized collective structures. © 1998 The American Physical Society.
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