Sektion Kristallographie

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Investigations of the process of crystal growth from a liquid zone by Seebeck measurements

Crystal Research and Technology 19(8): 1073-1078

Autoren/Herausgeber: Rudolph P
Gille P
Genzel CH
Boeck T
Erschienen: 1984

An arrangement for measuring the thermoelectric voltage (Seebeck signal) during the crystal growth from a liquid zone is described. Using the example of growing PbTe single crystals by THM it is shown that different equilibrium temperatures at both phase boundaries provide a differential Seekeck voltage depending on the crystal growth rate. Relaxation times which are needed to reach steady-state conditions with respect to the concentration difference between the growing and solving interface in the case of a start or sudden stop of the heater motion can be obtained.

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