Kyushu Institute of Technology Academic Repository
Kyutacarは九州工業大学で生産された研究成果を オープンアクセスで提供する機関リポジトリシステムです。 Kyutacar is open-access repository of research by members of the Kyushu Institute of Technology.
Graduate School of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
Graduate School of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
Graduate School of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
Graduate School of Engineering, Kyushu Institute of Technology, Kitakyushu 804-8550, Japan
Center for Scientific Instrument Renovation and Manufacturing Support, Osaka University, Toyonaka 560-8531, Japan
Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
Department of Chemistry, University of Waterloo, Waterloo, Ontario, Canada N2L 3G1
抄録
The high-pressure magnetic properties of the iodo-substituted bisdiselenazolyl radical ferromagnet IBPSSEt have been studied by vibrating-coil SQUID magnetometry. The magnetic state at a pressure (P) of approximately 2 GPa has the highest Curie temperature (TC) of 27.5 K, and displays an ideal three-dimensional (3D) ferromagnetic interaction network. The value of TC observed by ac magnetic susceptibility measurements is consistent with that obtained from dc measurements below approximately 4 GPa. Field-cooled dc measurements at more elevated pressures reveal a slow evolution of magnetic ordering, so that atP >6 GPa the structure may be described in terms of a 1D ferromagnetic chain with predominantly antiferromagnetic lateral (interchain) interactions, in accord with the results of density functional theory calculations.
High-pressure dc magnetic measurements on a bisdiselenazolyl radical ferromagnet using a vibrating-coil SQUID magnetometer
scunit-2018_19.pdf
(1.38MB)
