Oscillations of the Curie temperature and interlayer exchange coupling in magnetic trilayers

被引：58

作者：

Ney, A ^{[1
]}

Wilhelm, F ^{[1
]}

Farle, M ^{[1
]}

Poulopoulos, P ^{[1
]}

Srivastava, P ^{[1
]}

Baberschke, K ^{[1
]}

机构：

[1] Free Univ Berlin, Inst Expt Phys, D-14195 Berlin, Germany

来源：

PHYSICAL REVIEW B | 1999年 / 59卷 / 06期

关键词：

D O I：

10.1103/PhysRevB.59.R3938

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The onset of long-range magnetic order in exchange-coupled epitaxial Co/Cu/Ni trilayers, 2-4 monolayers (ML) each, on Cu(001) is studied by element-specific x-ray magnetic circular dichroism between 30 and 300 K in ultrahigh vacuum. Oscillations of the enhancement of the ordering temperature of Ni (Delta T (Ni)) by more than 40 K are measured as a function of interlayer exchange interaction by varying the Cu(001) spacer thickness. Below a Cu thickness of 2.3 ML antiferromagnetic coupling is measured. The period, phase, and amplitude of the Delta T (Ni) oscillations an in excellent agreement with the theoretical prediction for the short- and long-period oscillations of the interlayer exchange coupling.

引用

页码：R3938 / R3940

页数：3

共 23 条

[1] Quantum oscillations of properties in magnetic multilayers [J].

Bayreuther, G ;

Bensch, F ;

Kottler, V .

JOURNAL OF APPLIED PHYSICS, 1996, 79 (08) :4509-4514

[2] COMPLEX AF COUPLINGS FOR CU-CO MULTILAYERS WITH LOW COPPER THICKNESS [J].

BOBO, JF ;

PIECUCH, M ;

SNOECK, E .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1993, 126 (1-3) :440-442

[3] The Curie temperature in ultrathin Ni/Cu(001) films determined by AC susceptibility and MOKE [J].

Bovensiepen, U ;

Poulopoulos, P ;

Farle, M ;

Baberschke, K .

SURFACE SCIENCE, 1998, 402 (1-3) :396-400

[4] Two susceptibility maxima and element specific magnetizations in indirectly coupled ferromagnetic layers [J].

Bovensiepen, U ;

Wilhelm, F ;

Srivastava, P ;

Poulopoulos, P ;

Farle, M ;

Ney, A ;

Baberschke, K .

PHYSICAL REVIEW LETTERS, 1998, 81 (11) :2368-2371

[5] OSCILLATORY COUPLING BETWEEN FERROMAGNETIC LAYERS SEPARATED BY A NONMAGNETIC METAL SPACER [J].

BRUNO, P ;

CHAPPERT, C .

PHYSICAL REVIEW LETTERS, 1991, 67 (12) :1602-1605

[6]

DUNN JH, 1995, J PHYS C SOLID STATE, V7, P1111

[7] OSCILLATIONS OF THE EXCHANGE IN MAGNETIC MULTILAYERS AS AN ANALOG OF DEHAAS-VANALPHEN EFFECT [J].

EDWARDS, DM ;

MATHON, J ;

MUNIZ, RB ;

PHAN, MS .

PHYSICAL REVIEW LETTERS, 1991, 67 (04) :493-496

[8] LAYERED MAGNETIC-STRUCTURES - INTERLAYER EXCHANGE COUPLING AND GIANT MAGNETORESISTANCE [J].

FERT, A ;

GRUNBERG, P ;

BARTHELEMY, A ;

PETROFF, F ;

ZINN, W .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1995, 140 :1-8

[9]

Hathaway K.B., 1994, ULTRATHIN MAGNETIC S, P45

[10] STRUCTURAL DEPENDENCE OF THE OSCILLATORY EXCHANGE INTERACTION ACROSS CU LAYERS [J].

JOHNSON, MT ;

PURCELL, ST ;

MCGEE, NWE ;

COEHOORN, R ;

DESTEGGE, J ;

HOVING, W .

PHYSICAL REVIEW LETTERS, 1992, 68 (17) :2688-2691

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