The magnetization, crystal structure, and thermal expansion of a nearly stoichiometric Sr1.04(3)Er2.09(6)O4.00(1) single crystal have been studied by PPMS measurements and in-house and high-resolution synchrotron X-ray powder diffraction. No evidence was detected for any structural phase transitions even up to 500 K. The average thermal expansions of lattice constants and unit-cell volume are consistent with the first-order Gr\"uneisen approximations taking into account only the phonon contributions for an insulator, displaying an anisotropic character along the crystallographic \emph{a}, \emph{b}, and \emph{c} axes. Our magnetization measurements indicate that obvious magnetic frustration appears below ∼15 K, and antiferromagnetic correlations may persist up to 300 K.
@article{arxiv.1410.6688,
title = {Magnetization, crystal structure and anisotropic thermal expansion of single-crystal SrEr2O4},
author = {Hai-Feng Li and Andrew Wildes and Binyang Hou and Cong Zhang and Berthold Schmitz and Paul Meuffels and Georg Roth and Thomas Brückel},
journal= {arXiv preprint arXiv:1410.6688},
year = {2014}
}