Lattice strain and heat capacity anomalies at the spin reorientation transitions of ErFeO3 orthoferrite

R. P. Chaudhury, B. Lorenz, C. W. Chu, Ya B. Bazaliy, L. T. Tsymbal

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

We have investigated the thermal expansivities of an ErFeO3 single crystal along the three crystallographic orientations using a high-resolution capacitance dilatometer and found clear signatures of lattice distortions in the spin rotation region as evidence for strong spin-lattice coupling. The observed lattice strain is consistent with the smooth rotation of the magnetization and it reveals the importance of the magnetoelastic interaction. Heat capacity measurements show a well-defined plateau-like enhancement in the spin re-orientation regime as predicted by the Landau theory of second order phase transitions. The data are used to estimate microscopic anisotropy parameters. Heat capacity is also measured near the low-temperature erbium magnetic ordering transition.

原文English
文章編號042014
期刊Journal of Physics: Conference Series
150
發行號4
DOIs
出版狀態Published - 2009

All Science Journal Classification (ASJC) codes

  • 物理與天文學 (全部)

指紋

深入研究「Lattice strain and heat capacity anomalies at the spin reorientation transitions of ErFeO3 orthoferrite」主題。共同形成了獨特的指紋。

引用此