Quantum Phase Transition in the Itinerant Antiferromagnet (V0.9Ti0.1)2O3
Strongly Correlated Electrons
2008-09-02 v3
Abstract
Quantum-critical behavior of the itinerant electron antiferromagnet (V0.9Ti0.1)2O3 has been studied by single-crystal neutron scattering. By directly observing antiferromagnetic spin fluctuations in the paramagnetic phase, we have shown that the characteristic energy depends on temperature as c_1 + c_2 T^{3/2}, where c_1 and c_2 are constants. This T^{3/2} dependence demonstrates that the present strongly correlated d-electron antiferromagnet clearly shows the criticality of the spin-density-wave quantum phase transition in three space dimensions.
Keywords
Cite
@article{arxiv.0805.1363,
title = {Quantum Phase Transition in the Itinerant Antiferromagnet (V0.9Ti0.1)2O3},
author = {Hiroaki Kadowaki and Kiyoichiro Motoya and Taku J. Sato and J. W. Lynn and J. A. Fernandez-Baca and Jun Kikuchi},
journal= {arXiv preprint arXiv:0805.1363},
year = {2008}
}
Comments
4 pages, 4 figures