Interlayer magnetic coupling: Effect of interface roughness

被引：73
作者：
Kudrnovsky, J
Drchal, V
Turek, I
Sob, M
Weinberger, P
机构：
[1] VIENNA TECH UNIV,INST TECH ELECTROCHEM,A-1060 VIENNA,AUSTRIA
[2] ACAD SCI CZECH REPUBL,INST PHYS MAT,CR-61662 BRNO,CZECH REPUBLIC
来源：
PHYSICAL REVIEW B | 1996年 / 53卷 / 09期
关键词：
D O I：
10.1103/PhysRevB.53.5125
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The effect of structural interface imperfections on the interlayer magnetic coupling is studied theoretically by considering (i) a macroscopic model of roughness for possible fluctuations of spacer thickness, and (ii) a microscopic model of interdiffusion at ideal interfaces. For the Co/Cu/Co(001) system, we found a dramatic decrease of the amplitudes of the oscillations even for a small amount of interface imperfections, particularly strong for the short period oscillations,and thus indicating a possible source of discrepancy between ab initio calculations and experiment.
引用
收藏
页码：5125 / 5128
页数：4
相关论文
共 21 条
[1]   EXPLICIT, 1ST-PRINCIPLES TIGHT-BINDING THEORY [J].
ANDERSEN, OK ;
JEPSEN, O .
PHYSICAL REVIEW LETTERS, 1984, 53 (27) :2571-2574
[2]   OSCILLATORY COUPLING BETWEEN INTERFACES IN METALLIC MULTILAYERS [J].
BRUNO, E ;
GYORFFY, BL .
JOURNAL OF PHYSICS-CONDENSED MATTER, 1993, 5 (14) :2109-2136
[3]   INTERLAYER EXCHANGE COUPLING - A UNIFIED PHYSICAL PICTURE [J].
BRUNO, P .
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 121 (1-3) :248-252
[4]   OSCILLATORY COUPLING BETWEEN FERROMAGNETIC LAYERS SEPARATED BY A NONMAGNETIC METAL SPACER [J].
BRUNO, P ;
CHAPPERT, C .
PHYSICAL REVIEW LETTERS, 1991, 67 (12) :1602-1605
[5]  
GUERNEY BA, 1990, IEEE T MAGN, V26, P2747
[6]  
Hathaway K.B., 1994, ULTRATHIN MAGNETIC S, P45
[7]   EFFECTS OF RANDOMNESS AT INTERFACES ON THE EXCHANGE COUPLING IN MAGNETIC MULTILAYERS [J].
INOUE, J .
PHYSICAL REVIEW B, 1994, 50 (18) :13541-13546
[8]   MAGNETIC COUPLING OF INTERFACES - A SURFACE GREENS-FUNCTION APPROACH [J].
KUDRNOVSKY, J ;
DRCHAL, V ;
TUREK, I ;
WEINBERGER, P .
PHYSICAL REVIEW B, 1994, 50 (21) :16105-16108
[9]   SELF-CONSISTENT GREENS-FUNCTION METHOD FOR RANDOM OVERLAYERS [J].
KUDRNOVSKY, J ;
TUREK, I ;
DRCHAL, V ;
WEINBERGER, P ;
CHRISTENSEN, NE ;
BOSE, SK .
PHYSICAL REVIEW B, 1992, 46 (07) :4222-4228
[10]   AB-INITIO CALCULATIONS OF THE EXCHANGE COUPLING OF FE AND CO MONOLAYERS IN CU [J].
LANG, P ;
NORDSTROM, L ;
ZELLER, R ;
DEDERICHS, PH .
PHYSICAL REVIEW LETTERS, 1993, 71 (12) :1927-1930
123