Eur. Phys. J. B 7, 5-8 (1999)
https://doi.org/10.1007/s100510050584

A new model to describe the physics of (VO)₂P₂O₇

¹ Physikalisches Institut, Universität Bayreuth, 95440 Bayreuth, Germany
² Institut für Theoretische Physik, Universität zu Köln, 50937 Köln, Germany

Received: 29 May 1998
Revised: 25 September 1998
Accepted: 30 September 1998
Published online: 15 January 1999

Abstract

In the past different models for the magnetic salt vanadyl pyrophosphate (VO)₂P₂O₇ were discussed. Neither a spin ladder nor an alternating chain are capable to describe recently measured magnetic excitations. In this paper we propose a 2D model that fits better to experimental observations.