Quantum phase transition in the itinerant antiferromagnet (V0.9Ti0.1)2O3
Journal Article
·
· Physical Review Letters
- ORNL
- Tokyo University of Science, Japan
- National Institute of Standards and Technology (NIST)
- Meiji University, Kawasaki
Quantum-critical behavior of the itinerant electron antiferromagnet (V{sub 0.9}Ti{sub 0.1}){sub 2}O{sub 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{sub 1}+c{sub 2}T{sup 3/2}, where c{sub 1} and c{sub 2} are constants. This T{sup 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.
- Research Organization:
- Oak Ridge National Laboratory (ORNL); High Flux Isotope Reactor
- Sponsoring Organization:
- SC USDOE - Office of Science (SC)
- DOE Contract Number:
- AC05-00OR22725
- OSTI ID:
- 979098
- Journal Information:
- Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 9 Vol. 101; ISSN 0031-9007; ISSN PRLTAO
- Country of Publication:
- United States
- Language:
- English
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