Incommensurate spin resonance in URu2Si2

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We propose to search for the spin resonance in URu{sub 2}Si{sub 2} at {omega}{sub res} = 4-6meV at the incommensurate wavector Q* = (1 {+-} 0.4, 0, 0). We expect that this spin resonance will set in at temperatures below HO transition and the intensity of this peak will scale as {approx} {Delta}{sub HO} {approx} (T{sub HO} - T). The resonance peak is know to occur in the states with superconducting gap and results in the gapping of the electronic spectrum add ref on SrruO and cel 15. In the case of HO the gap {Delta}{sub HO} results in the ... continued below

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Balatsky, A V; Chantis, A; Dahal, Hari; Zhu, J X & Parker, David January 1, 2008.

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We propose to search for the spin resonance in URu{sub 2}Si{sub 2} at {omega}{sub res} = 4-6meV at the incommensurate wavector Q* = (1 {+-} 0.4, 0, 0). We expect that this spin resonance will set in at temperatures below HO transition and the intensity of this peak will scale as {approx} {Delta}{sub HO} {approx} (T{sub HO} - T). The resonance peak is know to occur in the states with superconducting gap and results in the gapping of the electronic spectrum add ref on SrruO and cel 15. In the case of HO the gap {Delta}{sub HO} results in the partially gapped electron spectrum. That appears to be a sufficient condition, as shown by Wiebe et al to produce a gap in spin excitation spectrum. In addition, we predict a peak in the spin excitation spectrum, as spectral weight redistribution produces the resonance feature. To the best of our knowledge, if the predicted resonance peak indeed occurs, it would be the first case where the spin resonance occurs at an incommensurate vector Q*.

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  • Journal Name: Physical Review B

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  • Report No.: LA-UR-08-07907
  • Report No.: LA-UR-08-7907
  • Grant Number: AC52-06NA25396
  • Office of Scientific & Technical Information Report Number: 956647
  • Archival Resource Key: ark:/67531/metadc934203

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  • January 1, 2008

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  • Nov. 13, 2016, 7:26 p.m.

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  • Dec. 12, 2016, 12:15 p.m.

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Balatsky, A V; Chantis, A; Dahal, Hari; Zhu, J X & Parker, David. Incommensurate spin resonance in URu2Si2, article, January 1, 2008; [New Mexico]. (digital.library.unt.edu/ark:/67531/metadc934203/: accessed April 27, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.