Quantum phase transition in the itinerant antiferromagnet (V0.9Ti0.1)2O3

Hiroaki Kadowaki; Kiyoichiro Motoya; Taku J. Sato; J. W. Lynn; J. A. Fernandez-Baca; Jun Kikuchi

doi:10.1103/PhysRevLett.101.096406

Quantum phase transition in the itinerant antiferromagnet (V0.9Ti0.1)2O3

Hiroaki Kadowaki, Kiyoichiro Motoya, Taku J. Sato, J. W. Lynn, J. A. Fernandez-Baca, Jun Kikuchi

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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 c1+c2T3/2, where c1 and c2 are constants. This T3/2 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.

Original language	English
Article number	096406
Journal	Physical Review Letters
Volume	101
Issue number	9
DOIs	https://doi.org/10.1103/PhysRevLett.101.096406
State	Published - Aug 29 2008

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10.1103/PhysRevLett.101.096406

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title = "Quantum phase transition in the itinerant antiferromagnet (V0.9Ti0.1)2O3",

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 c1+c2T3/2, where c1 and c2 are constants. This T3/2 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.",

author = "Hiroaki Kadowaki and Kiyoichiro Motoya and Sato, {Taku J.} and Lynn, {J. W.} and Fernandez-Baca, {J. A.} and Jun Kikuchi",

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AU - Kadowaki, Hiroaki

AU - Motoya, Kiyoichiro

AU - Sato, Taku J.

AU - Lynn, J. W.

AU - Fernandez-Baca, J. A.

AU - Kikuchi, Jun

PY - 2008/8/29

Y1 - 2008/8/29

N2 - 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 c1+c2T3/2, where c1 and c2 are constants. This T3/2 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.

AB - 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 c1+c2T3/2, where c1 and c2 are constants. This T3/2 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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VL - 101

JO - Physical Review Letters

JF - Physical Review Letters

IS - 9

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ER -

Quantum phase transition in the itinerant antiferromagnet (V0.9Ti0.1)2O3

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