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- W2044875892 abstract "We have measured the magnetic field dependence of the ordered antiferromagnetic moment and the magnetic excitations in the heavy-fermion superconductor URu2Si2 for fields up to 17 T applied along the tetragonal c axis, using neutron scattering. The decrease of the magnetic intensity of the tiny moment with increasing field does not follow a simple power law, but shows a clear inflection point, indicating that the moment disappears first at the metamagnetic transition at approximately 40 T. This suggests that the moment m is connected to a hidden order parameter psi which belongs to the same irreducible representation breaking time-reversal symmetry. The magnetic excitation gap at the antiferromagnetic zone center Q = (1,0,0) increases continuously with increasing field, while that at Q = (1.4,0,0) is nearly constant. This field dependence is opposite to that of the gap extracted from specific-heat data." @default.
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- W2044875892 date "2003-02-12" @default.
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- W2044875892 title "Inflection Point in the Magnetic Field Dependence of the Ordered Moment of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:msub><mml:mrow><mml:mi mathvariant=normal>U</mml:mi><mml:mi mathvariant=normal>R</mml:mi><mml:mi mathvariant=normal>u</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mi mathvariant=normal>S</mml:mi><mml:mi mathvariant=normal>i</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math>Observed by Neutron …" @default.
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- W2044875892 doi "https://doi.org/10.1103/physrevlett.90.067203" @default.
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