Rare earth magnetic order in RNi{sub 2}B{sub 2}C and RNiBC

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A review of neutron diffraction experiments on the magnetic order in the RNi{sub 2}B{sub 2}C and RNiBC (R-rare earth) systems is given. The RNi{sub 2}B{sub 2}C materials exhibit a wide variety of commensurate and incommensurate magnetic structures for different rare earths, along with superconductivity that is coupled to the magnetism. Simple commensurate antiferromagnetic structures are observed for R = Pr (T{sub N} = 4.0 K), Nd (T{sub N} = 4.8 K), Ho (T{sub N} = 8.5 K) and Dy (T{sub N} = 4.8 K). In addition, HoNi{sub 2}B{sub 2}C exhibits a c-axis spiral and an a-axis modulated incommensurate structure above ... continued below

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22 p.

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Skanthakumar, S. & Lynn, J.W. July 5, 1998.

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  • Skanthakumar, S. Argonne National Lab., IL (United States). Chemistry Div.
  • Lynn, J.W. National Inst. of Standards, Gaithersburg, MD (United States). Center for Neutron Research

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Description

A review of neutron diffraction experiments on the magnetic order in the RNi{sub 2}B{sub 2}C and RNiBC (R-rare earth) systems is given. The RNi{sub 2}B{sub 2}C materials exhibit a wide variety of commensurate and incommensurate magnetic structures for different rare earths, along with superconductivity that is coupled to the magnetism. Simple commensurate antiferromagnetic structures are observed for R = Pr (T{sub N} = 4.0 K), Nd (T{sub N} = 4.8 K), Ho (T{sub N} = 8.5 K) and Dy (T{sub N} = 4.8 K). In addition, HoNi{sub 2}B{sub 2}C exhibits a c-axis spiral and an a-axis modulated incommensurate structure above 5 K, while both structures collapse in favor of the commensurate structure at low T. A transversely polarized spin density wave (SDW) type incommensurate structure is observed for Er (T{sub N} = 6.8 K) and Tm (T{sub N} = 1.5 K), while a longitudinally polarized SDW structure is observed for Tb (T{sub N} = 15 K). No magnetic ordering of any type is detected for Y, Ce and Yb. HoNiBC is an antiferromagnet (T{sub N} = 9.8 K), ErNiBC is a ferromagnetic (T{sub C} = 4.6 K), while TbNiBC and DyNiBC exhibit both ferromagnetic and antiferromagnetic ordering at 17 K and {approximately} 13 K, respectively.

Physical Description

22 p.

Notes

OSTI as DE98057944

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  • International conference on strongly correlated electron systems, Paris (France), 14-18 Jul 1998

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  • Other: DE98057944
  • Report No.: ANL/CHM/CP--95915
  • Report No.: CONF-980745--
  • Grant Number: W-31109-ENG-38
  • DOI: 10.2172/663578 | External Link
  • Office of Scientific & Technical Information Report Number: 663578
  • Archival Resource Key: ark:/67531/metadc709673

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  • July 5, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Dec. 15, 2015, 12:49 p.m.

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Skanthakumar, S. & Lynn, J.W. Rare earth magnetic order in RNi{sub 2}B{sub 2}C and RNiBC, report, July 5, 1998; Illinois. (digital.library.unt.edu/ark:/67531/metadc709673/: accessed December 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.