| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|---|---|---|
| Page(s) | C8-1469 - C8-1470 | |
| DOI | https://doi.org/10.1051/jphyscol:19888675 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-1469-C8-1470
DOI: 10.1051/jphyscol:19888675
1 Institut für Physikalische Chemie der Universität Hamburg, Bundesstrasse 45, D-2000 Hamburg 13, F.R.G.
2 Hahn-Meitner-Institut Berlin GmbH, Glienicker Strasse 100, D-1000 Berlin 39, F.R.G.
J. Phys. Colloques 49 (1988) C8-1469-C8-1470
DOI: 10.1051/jphyscol:19888675
MAGNETIC PROPERTIES OF TRANSITION-METAL TETRAMETAPHOSPHATES
W. Gunsser1, D. Fruehauf1, K. Rohwer1 et Wiedenmann21 Institut für Physikalische Chemie der Universität Hamburg, Bundesstrasse 45, D-2000 Hamburg 13, F.R.G.
2 Hahn-Meitner-Institut Berlin GmbH, Glienicker Strasse 100, D-1000 Berlin 39, F.R.G.
Abstract
We investigated powder samples of the tetrametaphosphates M2P4O12 (M = Mn, Co, Ni, Cu) by magnetic measurements and neutron diffraction down to 1.7 K. Except for the Cu compound we found Néel temperatures and overall antiferromagnetic LRO. The Mn isomorph shows 1D-Heisenberg behaviour. Ni2P4O12 undergoes a spin-flop, Co2P4O12 a two-step metamagnetic transition.