Growth of crystalline praseodymium oxide on silicon

被引:37
作者
Osten, HJ [1 ]
Liu, JP [1 ]
Bugiel, E [1 ]
Müssig, HJ [1 ]
Zaumseil, P [1 ]
机构
[1] IHP, D-15236 Frankfurt, Germany
关键词
molecular beam epitaxy; oxides; rare earth compounds; dielectric materials;
D O I
10.1016/S0022-0248(01)01777-8
中图分类号
O7 [晶体学];
学科分类号
0702 ; 070205 ; 0703 ; 080501 ;
摘要
We present the results for crystalline growth of praseodymium oxide on Si as a potential high-K dielectric with promising electrical properties. All layer growth experiments were performed using solid source molecular beam epitaxy. The initial stages of growth were studied by scanning tunneling microscopy. On Si(0 0 1) surfaces, crystalline Pr2O3 grows as (1 1 0)-domains, with two orthogonal in-plane orientations. Epitaxial silicon overgrowth seems to be impossible. We obtain perfect epitaxial growth on Si(1 1 1). These layers can also be overgrown epitaxially with silicon. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:229 / 234
页数:6
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