https://doi.org/10.1007/s100510050448
Magnetic properties of the low dimensional spin system (VO)2P2O7: ESR and susceptibility*
Physikalisches Institut, Universität Frankfurt,
Robert Mayer Strasse 2-4, 60054 Frankfurt, Germany
Corresponding author: a schwenk@physik.uni-frankfurt.de
Received:
22
December
1997
Accepted:
17
March
1998
Published online: 15 October 1998
Experimental results on magnetic resonance (ESR)
and magnetic susceptibility are given for single crystalline
(VO)2P2O7. The crystal growth procedure is briefly
discussed. The susceptibility is interpreted numerically
using a model with alternating spin chains. We determine J=51 K and
. Furthermore we find a spin gap of 
meV from our
ESR measurements. Using elastic constants no indication of a phase
transition forcing the dimerization is seen below 300 K.
PACS: 75.10.Jm – Quantized spin models / 76.30.-v – Electron paramagnetic resonance and relaxation / 75.40.Cx – Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.)
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 1998
