Single crystal neutron diffraction study of the magnetic structure of TmNi{sub 2}B{sub 2}C

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Neutron diffraction techniques have been used to study the magnetic structure of single crystals of the magnetic superconductor (T{sub c} {congruent} 11K) TmNi{sub 2}B{sub 2}C. We find that below approximately 1.5K the magnetic moments order in an incommensurate spin wave with propagation vector q{sub m} = q{sub m} (a* +b*) (or q{sub m} = q{sub m} (a* + b*)) with q{sub m} = 0.094 {+-} 0.001. The spin wave is transverse with the moments aligned along the c-axis, and the observation of relatively intense higher order harmonics shows that the modulation is not purely sinusoidal but considerably squared. This incommensurate ... continued below

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14 p.

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Sternlieb, B.; Shapiro, S.; Stassis, C.; Goldman, A.I. & Canfield, P. February 1, 1997.

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  • Ames Laboratory
    Publisher Info: Ames Lab., IA (United States)
    Place of Publication: Iowa

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Neutron diffraction techniques have been used to study the magnetic structure of single crystals of the magnetic superconductor (T{sub c} {congruent} 11K) TmNi{sub 2}B{sub 2}C. We find that below approximately 1.5K the magnetic moments order in an incommensurate spin wave with propagation vector q{sub m} = q{sub m} (a* +b*) (or q{sub m} = q{sub m} (a* + b*)) with q{sub m} = 0.094 {+-} 0.001. The spin wave is transverse with the moments aligned along the c-axis, and the observation of relatively intense higher order harmonics shows that the modulation is not purely sinusoidal but considerably squared. This incommensurate magnetic structure, which coexists with superconductivity below T{sub N} {congruent} 1.5K, is quite different from those observed in the magnetic superconductors HoNi{sub 2}B{sub 2}C and ErNi{sub 2}B{sub 2}C. The origin of diffraction peaks observed in scans parallel to a* is briefly discussed.

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14 p.

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OSTI as DE97002391

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  • 41. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 12-15 Nov 1996

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  • Other: DE97002391
  • Report No.: IS-M--861
  • Report No.: CONF-961141--8
  • Grant Number: W-7405-ENG-82
  • Office of Scientific & Technical Information Report Number: 431163
  • Archival Resource Key: ark:/67531/metadc679607

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  • February 1, 1997

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  • July 25, 2015, 2:20 a.m.

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  • Nov. 6, 2015, 8:59 p.m.

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Sternlieb, B.; Shapiro, S.; Stassis, C.; Goldman, A.I. & Canfield, P. Single crystal neutron diffraction study of the magnetic structure of TmNi{sub 2}B{sub 2}C, article, February 1, 1997; Iowa. (digital.library.unt.edu/ark:/67531/metadc679607/: accessed November 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.