Journal
PHYSICAL REVIEW LETTERS
Volume 101, Issue 9, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.101.096406
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Funding
- US-Japan Cooperative Program on Neutron Scattering
- Scientific User Facilities Division, office of Basic Energy Sciences, US Department of Energy
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Quantum-critical behavior of the itinerant electron antiferromagnet (V0.9Ti0.1)(2)O-3 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.
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