Magnetic order and enhanced exchange in the quasi-one-dimensional molecule-based antiferromagnet Cu(NO3)2(pyz)3

Benjamin M Huddart; Jamie Brambleby; Tom Lancaster; Paul A Goddard; Fan Xiao; Stephen J Blundell; Francis L Pratt; John Singleton; Piero Macchi; Rebecca Scatena; Alyssa M Barton; Jamie L Manson

doi:10.1039/c8cp07160h

Magnetic order and enhanced exchange in the quasi-one-dimensional molecule-based antiferromagnet Cu(NO₃)₂(pyz)₃

Phys Chem Chem Phys. 2019 Jan 21;21(3):1014-1018. doi: 10.1039/c8cp07160h. Epub 2018 Dec 21.

Authors

Affiliations

¹ Centre for Materials Physics, Durham University, South Road, Durham DH1 3LE, UK. benjamin.m.huddart@durham.ac.uk.
² Department of Physics, University of Warwick, Gibbet Hill Road, Coventry, CV4 7AL, UK.
³ Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern, 3012, Switzerland and Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
⁴ Department of Physics, Clarendon Laboratory, University of Oxford, Parks Road, Oxford OX1 3PU, UK.
⁵ ISIS Pulsed Muon Facility, STFC Rutherford Appleton Laboratory, Chilton, Didcot OX11 0QX, UK.
⁶ National High Magnetic Field Laboratory, Los Alamos National Laboratory, MS-E536, Los Alamos, New Mexico 87545, USA.
⁷ Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern, 3012, Switzerland and Polytechnic of Milan, Department of Chemistry, Materials and Chemical Engineering, via Mancinelli 7 20131, Milan, Italy.
⁸ Department of Chemistry and Biochemistry, University of Bern, Freiestrasse 3, Bern, 3012, Switzerland.
⁹ Department of Chemistry and Biochemistry, Eastern Washington University, Cheney, Washington 99004, USA. jmanson@ewu.edu.

PMID: 30574636
DOI: 10.1039/c8cp07160h

Abstract

The quasi-one-dimensional molecule-based Heisenberg antiferromagnet Cu(NO₃)₂(pyz)₃ has an intrachain coupling J = 13.7(1) K () and exhibits a state of long-range magnetic order below T_N = 0.105(1) K. The ratio of interchain to intrachain coupling is estimated to be |J'/J| = 3.3 × 10^-3, demonstrating a high degree of isolation for the Cu chains.