Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)]n (Ln=Sm, La) using implanted muons [dataset]

Schlueter, J.A.  (Argonne National Laboratory, US); Preuss, K.E.  (University of Guelph, Canada); Maahs, A.C.  (University of Guelph, Canada); Mills, M.B. (University of Guelph, Canada); Blundell, S.J. (University of Oxford, UK); Huddart, B.M. (Durham University, UK); Baker, P.J. (STFC-ISIS Facility, UK); Pratt, F.L. (STFC-ISIS Facility, UK); Xiao, F. (Durham University, UK); Franke, K.J.A.  (Durham University, UK); Lancaster, T. (Durham University, UK); Williams, R.C. (Durham University, UK)

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Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)]n (Ln=Sm, La) using implanted muons [dataset] Open Access

We present the results of muon-spin relaxation (μSR) measurements on antiferromagnetic and ferromagnetic spin chains. In antiferromagnetic CuF2(pyz) we identify a transition to long range magnetic order taking place at TN=0.6(1) K, allowing us to estimate a ratio with the intrachain exchange of TN/|J|=0.1 and the ratio of interchain to intrachain exchange coupling as |J/J|=0.05. The ferromagnetic chain [Sm(hfac)3(boaDTDA)]n undergoes an ordering transition at Tc=2.8(1) K, seen via a broad freezing of dynamic fluctuations on the muon (microsecond) timescale and implying Tc/|J|=0.6. The ordered radical moment continues to fluctuate on this timescale down to 0.3 K, while the Sm moments remain disordered. In contrast, the radical spins in [La(hfac)3(boaDTDA)]n remain magnetically disordered down to T=0.1 K suggesting Tc/|J|<0.17.

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Resource type: Dataset
Contributors: Creator: Lancaster, T. ¹
Creator: Huddart, B.M. ¹
Creator: Williams, R.C. ¹
Creator: Xiao, F. ¹
Creator: Franke, K.J.A. ¹
Creator: Baker, P.J. ²
Creator: Pratt, F.L. ²
Creator: Blundell, S.J. ³
Creator: Schlueter, J.A. ⁴
Creator: Mills, M.B. ⁵
Creator: Maahs, A.C. ⁵
Creator: Preuss, K.E. ⁵

¹ Durham University, UK
² STFC-ISIS Facility, UK
³ University of Oxford, UK
⁴ Argonne National Laboratory, US
⁵ University of Guelph, Canada
Funder: Engineering and Physical Sciences Research Council
Science and Technology Facilities Council
Natural Sciences and Engineering Research Council of Canada
National Science Foundation
Research methods
Other description
Keyword: Muon-spin relaxation
One-dimensional magnetism
Radical magnetism
Subject
Location
Language
Cited in: doi:10.1088/1361-648X/ab2cb6
Identifier: ark:/32150/r16108vb28d
doi:10.15128/r16108vb28d
Rights: Creative Commons Attribution 4.0 International (CC BY)
Publisher: Durham University
Date Created

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User N. Syrotiuk has updated Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)]n (Ln=Sm, La) using implanted muons [dataset]	about 3 years ago
User N. Syrotiuk has updated Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)]n (Ln=Sm, La) using implanted muons [dataset]	about 3 years ago
User T. Lancaster has updated Probing magnetic order and disorder in the one-dimensional molecular spin chains CuF2(pyz) and [Ln(hfac)3(boaDTDA)]n (Ln=Sm, La) using implanted muons [dataset]	about 3 years ago