Observation of superstructures on the surfaces of sputtered YBa[sub 2]Cu[sub 3]O[sub 7-x] thin

Behner, H.; Rauch, W.
September 1992
Applied Physics Letters;9/21/1992, Vol. 61 Issue 12, p1465
Academic Journal
Examines the surface structures of sputtered ytterbium barium copper oxide (YBCO) thin films using low-energy diffraction. Measurement of the critical-current density of YBCO thin films; Loss of oxygen in the YBCO cells; Formation of YBCO overstructures on YBCO thin films; Model of oxygen vacancy ordering in the copper oxide planes of YBCO unit cell in the film surface.


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