Spin-lattice coupling in the ferrimagnetic semiconductor FeCr2S4 probed   by surface acoustic waves
  Using surface acoustic waves, the elastomagnetic coupling could be studied in thin single crystalline plates of the ferrimagnetic semiconductor FeCr2S4 by measuring the attenuation and the frequency tracking in the temperature range 4.2 K to 200 K. The data clearly display the anomalies found in low-field magnetization measurements. 
C. Mueller (1), V. Zestrea (2), V. Tsurkan (1 and 2), S. Horn (1), R.   Tidecks (1), and A. Wixforth (1) ((1) Institut fuer ...