Low temperature magnetic properties of a molecular compound (abstract) : The 40th annual conference on magnetism and magnetic materials
Tholence, J. L. ; Novak, M. ; Luneau, D. ; Rey, P. ; Belorisky, E.
[S.l.] : American Institute of Physics (AIP)
Published 1996
[S.l.] : American Institute of Physics (AIP)
Published 1996
| ISSN: |
1089-7550
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| Source: |
AIP Digital Archive
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| Topics: |
Physics
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| Notes: |
In molecular compounds, the magnetic properties depend on the coupling between the magnetic moments of transition metal ions, rare earth ions, and/or free radicals. This coupling is often antiferromagnetic, but can give a high spin moment in some particular cases. When organic molecules form crystals, again the coupling between molecules can be antiferromagnetic or ferromagnetic like. In a few cases the ferromagnetism, only due to nitroxide radicals, has been observed at low temperature. We present here a more general case of a manganese(II) derivative of an "imidazole substituted nitronyl nitroxide'' with complex behavior. The high temperature properties can be explained by ferrimagnetic coupling between the Mn and nitroxide spins. At low temperature a weak intermolecular coupling appears below 10 K, as well as a weak ferromagnetic component below 4.5 K. These low temperature properties might be due to the canting of antiferromagnetically coupled spins. © 1996 American Institute of Physics.
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| Type of Medium: |
Electronic Resource
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| URL: |