کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1666400 | 1518065 | 2013 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
On the conductive properties of MgO films grown on ultrathin hexagonal close-packed Co(0001) layer
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: On the conductive properties of MgO films grown on ultrathin hexagonal close-packed Co(0001) layer On the conductive properties of MgO films grown on ultrathin hexagonal close-packed Co(0001) layer](/preview/png/1666400.png)
چکیده انگلیسی
Here we present a scanning tunneling microscopy study of electrical conductivity of (110)-oriented MgO ultrathin films grown on hexagonal close-packed Co(0001) surface by molecular beam epitaxy, being a good candidate for tunneling barrier for future-generation spintronic devices. Three-dimensional growth of the tunneling barrier, expected for compressive strains emerging at the Co/MgO interface, is demonstrated by reflection high-energy electron diffraction and atomic force microscopy. The 5Â eV height of the full barrier of MgO is reached at a layer thickness of 4Â nm. Thinner MgO layers exhibit randomly distributed spots of the high conductance on the tunneling current map. The current-voltage curves indicate the existence of vacancies in MgO crystal lattice, lowering the resistivity of the tunneling barrier.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 539, 31 July 2013, Pages 372-376
Journal: Thin Solid Films - Volume 539, 31 July 2013, Pages 372-376
نویسندگان
L. Gladczuk, M. Aleszkiewicz,