Eur. Phys. J. B 84, 391-395 (2011)
https://doi.org/10.1140/epjb/e2011-20263-2

Regular Article

Magnetization and specific heat of the dimer system CuTe₂O₅

¹ E. K. Zavoisky Physical-Technical Institute, 420029 Kazan, Russia
² Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg, 86135 Augsburg, Germany
³ Department of Physics, The Hong Kong University of Science & Technology, Clear Water Bay, Kowloon, Hong Kong
⁴ Department of Materials and Environmental Chemistry, Stockholm University, 10691 Stockholm, Sweden
⁵ Institute de Physique de la Matière Complexe, EPFL, 1015 Lausanne, Switzerland

^a e-mail: hans-albrecht.krug@physik.uni-augsburg.de

Received: 1 April 2011
Received in final form: 7 October 2011
Published online: 30 November 2011

Abstract

We report on magnetization and specific heat measurements on single-crystalline CuTe₂O₅. The experimental data are directly compared to theoretical results for two different spin structures, namely an alternating spin-chain and a two-dimensional (2D) coupled dimer model, obtained by Das et al. [Phys. Rev. B 77, 224437 (2008)]. While the analysis of the specific heat does not allow to distinguish between the two models, the magnetization data is in good agreement with the 2D coupled dimer model.