Magnetic tunneling junctions with the Heusler compound   Co_2Cr_{0.6}Fe_{0.4}Al
  The Heusler alloy is used as an electrode of magnetic tunneling junctions. The junctions are deposited by magnetron dc sputtering using shadow mask techniques with AlO_{x} as a barrier and cobalt as counter electrode. Measurements of the magnetoresistive differential conductivity in a temperature range between 4K and 300K are shown. An analysis of the barrier properties applying the Simmons model to the bias dependent junction conductivity is performed. VSM measurements were carried out to examine the magnetic properties of the samples. 
A. Conca, S. Falk, G. Jakob, M. Jourdan, and H. Adrian