Abstract
By fitting the temperature-dependent magnetic susceptibility of single-crystal C for applied magnetic fields parallel and perpendicular to the c axis, the crystalline electric-field (CEF) parameters , and the CEF energy levels and eigenstates of were determined. Approximate values of the anisotropic exchange constants between the ions in C were also estimated. Our CEF parameters were checked by calculating magnetization versus field isotherms and good agreement with experiment was found. The energy-level scheme shows two singlets and a doublet below 10 K and a large energy gap (∼90 K) between these levels and the next excited states. © 1996 The American Physical Society.
- Received 21 April 1995
DOI:https://doi.org/10.1103/PhysRevB.53.2217
©1996 American Physical Society