A new single-tilt technique for performing TEM stereomicroscopy
of strain fields in crystalline materials has been developed. The
technique is a weak beam technique that involves changing the value
of g and/or sg while
tilting across a set of Kikuchi bands. The primary benefit of
the technique is it can be used with single-tilt TEM specimen
holders including many specialty holders such as in situ
straining, heating, and cooling holders. Standard stereo-TEM
techniques are almost always limited to holders allowing two
degrees of rotational freedom (i.e., double-tilt or
tilt/rotation holders). An additional benefit of the new
technique is that it eliminates the need to focus with the specimen
height control. These advantages make it useful for stereo viewing
or for quantitative stereomicroscopy provided necessary
consideration is given to errors that may result from the technique.