METAL-SEMICONDUCTOR INTERFACES - MAGNETIC AND ELECTRONIC-PROPERTIES AND SCHOTTKY-BARRIER IN FEN/(ZNSE)M (001) SUPERLATTICES

被引：17

作者：

CONTINENZA, A ^{[1
]}

MASSIDDA, S ^{[1
]}

FREEMAN, AJ ^{[1
]}

机构：

[1] NORTHWESTERN UNIV,DEPT PHYS & ASTRON,EVANSTON,IL 60208

来源：

PHYSICAL REVIEW B | 1990年 / 42卷 / 05期

关键词：

D O I：

10.1103/PhysRevB.42.2904

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Results of a systematic local-density study of the electronic and magnetic properties of Fen/(ZnSe)m [namely, Fe1/(ZnSe)1, Fe3/(ZnSe)1, and Fe3/(ZnSe)2] superlattices are presented. The effects of varying Fe and semiconductor layer thicknesses on the magnetic and electronic properties of the superlattice are analyzed. In particular, we found that (i) the enhanced Fe magnetism that characterizes the Fe-monolayer superlattice is suppressed as the Fe thickness is increased; (ii) some charge is transferred from the Fe layers into the ZnSe region; (iii) the interface effects are rapidly screened in the inner Fe layers; and (iv) a significant role on the Fe magnetism is played by the geometrical site coordination. Finally, for the thickest superlattice, the Schottky-barrier height is estimated. © 1990 The American Physical Society.

引用

页码：2904 / 2913

页数：10

共 37 条

[1] SCHOTTKY-BARRIER FORMATION AND ATOMIC MIXING AT AU/ZNSE(100) AND CO/ZNSE(100) INTERFACES WITH CO AND AU INTERLAYERS [J].

ANDERSON, SG ;

XU, F ;

VOS, M ;

WEAVER, JH ;

CHENG, H .

PHYSICAL REVIEW B, 1989, 39 (08) :5079-5090

[2] THE STRUCTURE AND PROPERTIES OF METAL-SEMICONDUCTOR INTERFACES [J].

Brillson, L. J. .

SURFACE SCIENCE REPORTS, 1982, 2 (02) :123-326

[3] TRANSITION IN SCHOTTKY-BARRIER FORMATION WITH CHEMICAL REACTIVITY [J].

BRILLSON, LJ .

PHYSICAL REVIEW LETTERS, 1978, 40 (04) :260-263

[4] STRUCTURAL AND ELECTRONIC-PROPERTIES OF BULK ZNSE [J].

CONTINENZA, A ;

MASSIDDA, S ;

FREEMAN, AJ .

PHYSICAL REVIEW B, 1988, 38 (18) :12996-13001

[5]

CONTINENZA A, 1988, J MAGN MAGN MATER, V78, P195

[6] ELECTRONIC-STRUCTURE AND SCHOTTKY-BARRIER HEIGHTS OF (111) NISI2/SI A-TYPE AND B-TYPE INTERFACES [J].

DAS, GP ;

BLOCHL, P ;

ANDERSEN, OK ;

CHRISTENSEN, NE ;

GUNNARSSON, O .

PHYSICAL REVIEW LETTERS, 1989, 63 (11) :1168-1171

[7]

FREEMAN AJ, 1966, MAGNETISM A, V2

[8] SCHOTTKY BARRIERS - AN EFFECTIVE WORK FUNCTION MODEL [J].

FREEOUF, JL ;

WOODALL, JM .

APPLIED PHYSICS LETTERS, 1981, 39 (09) :727-729

[9] TOTAL-ENERGY LOCAL-SPIN-DENSITY APPROACH TO STRUCTURAL AND ELECTRONIC-PROPERTIES OF FERROMAGNETIC IRON [J].

HATHAWAY, KB ;

JANSEN, HJF ;

FREEMAN, AJ .

PHYSICAL REVIEW B, 1985, 31 (12) :7603-7611

[10] STRUCTURE DETERMINATION OF METASTABLE COBALT FILMS [J].

IDZERDA, YU ;

ELAM, WT ;

JONKER, BT ;

PRINZ, GA .

PHYSICAL REVIEW LETTERS, 1989, 62 (21) :2480-2483

← 1 2 3 4 →