Structural properties of YBa2Cu3O7-/PrBa2Cu3O7- heterointerfaces have been investigated by aberration-corrected electron microscopy. Experimental evidence shows that c-axis-oriented YBa2Cu3O7-/PrBa2Cu3O7- heterostructures with atomically sharp interface epitaxially grow on SrTiO3(001) substrates. In terms of the contrast analysis, no apparent interdiffusion between YBa2Cu3O7- and PrBa2Cu3O7- occurs at the interface. In addition, stand-off misfit dislocations and planar faults appear within PrBa2Cu3O7- layer near the interface. Both misfit dislocations and interfacial dislocations resulting from the termination of planar faults contribute to misfit relaxation at the YBa2Cu3O7-/PrBa2Cu3O7- interface. The defect configuration of planar faults and stand-off misfit dislocations is explored. Copyright (c) 2013 John Wiley & Sons, Ltd.
部门归属
[mi, shao-bo] chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china. [mi, shao-bo] xi an jiao tong univ, int ctr dielect res, xian 710049, peoples r china.
; mi, sb (reprint author), chinese acad sci, inst met res, shenyang natl lab mat sci, shenyang 110016, peoples r china.
; sbmi@imr.ac.cn
S. B. Mi. Interface structure and misfit relaxation in YBa2Cu3O7-delta/PrBa2Cu3O7-delta heterostructures on SrTiO3(001) substrates[J]. Surface and Interface Analysis,2014,46(2):102-105.
APA
S. B. Mi.(2014).Interface structure and misfit relaxation in YBa2Cu3O7-delta/PrBa2Cu3O7-delta heterostructures on SrTiO3(001) substrates.Surface and Interface Analysis,46(2),102-105.
MLA
S. B. Mi."Interface structure and misfit relaxation in YBa2Cu3O7-delta/PrBa2Cu3O7-delta heterostructures on SrTiO3(001) substrates".Surface and Interface Analysis 46.2(2014):102-105.
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