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Transparent, Superparamagnetic K ${{{\rm I}\hfill \atop x\hfill}}$ Co ${{{\rm II}\hfill \atop y\hfill}}$ [Fe III (CN) 6 ]–Silica Nanocomposites with Tunable Photomagnetism
Author(s) -
Moore Joshua G.,
Lochner Eric J.,
Ramsey Chris,
Dalal Naresh S.,
Stiegman A. E.
Publication year - 2003
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200250409
Subject(s) - prussian blue , superparamagnetism , materials science , nanocomposite , ferrimagnetism , magnetism , ferromagnetism , magnetization , curie temperature , hybrid material , nanotechnology , chemical engineering , condensed matter physics , magnetic field , chemistry , physics , quantum mechanics , engineering , electrode , electrochemistry
Moldable magnetism : Tunable photomagnetism is exhibited by homogeneous, optically transparent, moldable silica xerogel nanocomposites containing the ferromagnetic Prussian blue analogue K x Co ${{{{\rm {\rm II}}\hfill \atop {\rm y}\hfill}}}$ [Fe III (CN) 6 ] z . These materials also show a blue‐shifted intervalence charge‐transfer band and superparamagnetic behavior. The picture shows the temperature dependence of the field‐cooled (FC) and zero‐field‐cooled (ZFC) dc magnetization μ of a xerogel sample (inset).