An endohedral single-molecule magnet with long relaxation times: DySc2N@C80.
J Am Chem Soc
; 134(24): 9840-3, 2012 Jun 20.
Article
em En
| MEDLINE
| ID: mdl-22582902
ABSTRACT
The magnetism of DySc(2)N@C(80) endofullerene was studied with X-ray magnetic circular dichroism (XMCD) and a magnetometer with a superconducting quantum interference device (SQUID) down to temperatures of 2 K and in fields up to 7 T. XMCD shows hysteresis of the 4f spin and orbital moment in Dy(III) ions. SQUID magnetometry indicates hysteresis below 6 K, while thermal and nonthermal relaxation is observed. Dilution of DySc(2)N@C(80) samples with C(60) increases the zero-field 4f electron relaxation time at 2 K to several hours.
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MEDLINE
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En
Ano de publicação:
2012
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Article