Abstract
Materials with one-dimensional (1D) chains of magnetic ions with reduced spin provide a platform for enhanced quantum behavior. Coordination polymers, or equivalently magnetic metal-organic frameworks (MOFs), with both organic and inorganic building blocks offer the ability to design these tailored structural motifs due to the versatility and predictability of organic chemistry. Here we focus on a series of compounds M(N2H5)2(SO4)2, where M is the transition metal ion Cu2+, Co2+, or Mn2+, that forms isolated 1D spin chains within the bulk crystalline lattice. The behavior of the S = 1/2 Cu compound is compared with higher spin Mn and Co based materials through low temperature elastic and inelastic neutron scattering measurements. These provide insights into the magnetic interactions and structure in these materials. In addition, polarized neutron powder diffraction measurements were utilized to determine the site susceptibility tensor in all compounds that provides further insight into the magnetic interactions.
Original language | English |
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Article number | 124407 |
Journal | Physical Review Materials |
Volume | 6 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2022 |
Funding
We gratefully thank Iurii Kibalin for discussions on the polarized powder neutron data analysis. This research used resources at the High Flux Isotope Reactor and Spallation Neutron Source, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. This research used resources at the Missouri University Research Reactor (MURR). This work was supported in part by a University of Missouri Research Council Grant (No. URC-22-021). This manuscript has been authored by UT-Battelle, LLC under Contract No. DE-AC05-00OR22725 with the U.S. Department of Energy.