Slow magnetic relaxation and hysteresis effects of dynamic origin have been observed above liquid helium temperature in a chain compound (see picture), comprising ConII centers and organic radicals, without any evidence of phase transition to three-dimensional magnetic order. These results are the first evidence of the slow dynamics predicted for one-dimensional magnetic systems with Ising anisotropy, and they open the possibility of storing information in a single magnetic nanowire.
Cobalt(II)-nitronyl nitroxide chains as molecular magnetic nanowires / Caneschi A.; Gatteschi D.; Lalioti N.; Sangregorio C.; Sessoli R.; Venturi G.; Vindigni A.; Rettori A.; Pini M.G.; Novak M.A.. - In: ANGEWANDTE CHEMIE. INTERNATIONAL EDITION. - ISSN 1433-7851. - STAMPA. - 40:(2001), pp. 1760-1763. [10.1002/1521-3773(20010504)40:9<1760::AID-ANIE17600>3.0.CO;2-U]
Cobalt(II)-nitronyl nitroxide chains as molecular magnetic nanowires
CANESCHI, ANDREA;GATTESCHI, DANTE;SANGREGORIO, CLAUDIO;SESSOLI, ROBERTA;VENTURI, GIAN ANTONIO;VINDIGNI, ALESSANDRO;RETTORI, ANGELO;
2001
Abstract
Slow magnetic relaxation and hysteresis effects of dynamic origin have been observed above liquid helium temperature in a chain compound (see picture), comprising ConII centers and organic radicals, without any evidence of phase transition to three-dimensional magnetic order. These results are the first evidence of the slow dynamics predicted for one-dimensional magnetic systems with Ising anisotropy, and they open the possibility of storing information in a single magnetic nanowire.
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