Abstract
AbstractYBa2Cu3O7‐δ films were grown by liquid phase epitaxy in Y‐ZrO2 crucibles on (110)NdGaO3 substrates. A change in the preferred crystallographic growth direction was observed reproducibly. The growth mode changes from pure c‐axis oriented over mixed c/a‐axis oriented films to pure a‐axis oriented films with increasing undercooling. X‐ray diffraction measurements and atomic force microscopy investigations with c‐axis oriented as well as a‐axis oriented films are presented. It will be shown that atomically smooth steps with 0.2‐0.8 μM width can be achieved by LPE, which are free from melt remnants. Furthermore the values for the enthalpy of dissolution from literature, which are varying in a wide range, will be combined and a new value will be calculated in terms of a multi particle model.
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