Tailoring structure and magnetic properties of NixCo1−x(N(CN)2)2 molecular magnets

Dooyong Lee, D. J. Williams, S. C. Vogel, Th Proffen, J. D. Thompson, L. L. Daemen, Sungkyun Park

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A series of transition metal NixCo1−x(N(CN)2)2 dicyanamide molecular magnet, 0 ≤ x ≤ 1, was chemically synthesized. Structure and magnetic properties were investigated by IR spectroscopy, neutron powder diffraction and temperature-dependent magnetization measurement. The neutron powder diffraction measurement established that all samples showed the rutile structure with Pnnm space group. The detailed Rietveld refinement results revealed a systematic decrease of unit-cell volume with increasing Ni content. We also observed a concurrent increase of the Curie temperature with Ni content due to the increase of superexchange interaction.

Original languageEnglish
Pages (from-to)1100-1104
Number of pages5
JournalCurrent Applied Physics
Volume16
Issue number9
DOIs
StatePublished - Sep 1 2016

Funding

This study is supported in part by NRF Korea ( NRF-2011-0031933 , NRF-2015R1D1A1A01058672 ) and Korea Atomic Energy Research Institute . The Lujan Neutron Scattering Center at the Los Alamos Neutron Science Center is funded by the U.S. Department of Energy’s Office of Basic Energy Science. The Los Alamos National Laboratory is operated by the Los Alamos National Security LLC under the DOE Contract DE-AC52-06NA25396 .

Keywords

  • Molecular magnets
  • Neutron diffraction
  • Transition metal dicyanamide

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