Realization of a magnet using an antiferromagnetic phase of single-chain magnets.
A system presenting an antiferromagnetic (AF) phase of single-chain magnets (SCMs) is studied at low temperatures. The phase diagram is first discussed to specify the magnitude of the interchain couplings. Then, we show experimentally and theoretically that slow relaxation of the magnetization can still be observed in the AF phase, with a maximum of the relaxation time close to the AF-paramagnetic phase transition. This counterintuitive result shows that materials presenting such an ordered state can be used to design high temperature magnets using SCM-based materials.
Coulon
Claude
C
CNRS, UPR 8641, Centre de Recherche Paul Pascal (CRPP), Equipe "Matériaux Moléculaires Magnétiques", 115 Avenue du Dr. Albert Schweitzer, Pessac, F-33600, France.
Clérac
Rodolphe
R
Wernsdorfer
Wolfgang
W
Colin
Thierry
T
Miyasaka
Hitoshi
H