Evolution of microstructure and magnetoresistance in Co/Cu multilayers during annealing

被引：37

作者：

Rätzke, K

Hall, MJ

Jardine, DB

Shih, WC

Somekh, RE

Greer, AL

机构：

[1] Univ Cambridge, Dept Mat Sci & Met, Cambridge CB2 3QZ, England

[2] Univ Kiel, Tech Fak, Lehrstuhl Mat Verbunde, D-24143 Kiel, Germany

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 204卷 / 1-2期

关键词：

multilayers; annealing; structural changes; giant magnetoresistance;

D O I：

10.1016/S0304-8853(99)00448-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Co/Cu multilayers [Co (1.5 nm)/Cu (4 nm)](35) made by magnetron sputtering have been investigated by vibrating-sample magnetometry, electrical resistance measurements and low-angle X-ray diffractometry before and after annealing at 275 degrees C < T < 350 degrees C for selected times. The observed changes in electrical and magnetic properties are small and consistent with a break-up of the Co layers by diffusion of Cu along the grain boundaries within them. The study of the early stages of break-up is facilitated by choosing layer thicknesses greater than would be optimal for GMR. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

收藏

页码：61 / 67

页数：7

相关论文

共 26 条

[1] GIANT MAGNETORESISTANCE OF (001)FE/(001) CR MAGNETIC SUPERLATTICES [J].

BAIBICH, MN ;

BROTO, JM ;

FERT, A ;

VANDAU, FN ;

PETROFF, F ;

EITENNE, P ;

CREUZET, G ;

FRIEDERICH, A ;

CHAZELAS, J .

PHYSICAL REVIEW LETTERS, 1988, 61 (21) :2472-2475

[2] GIANT MAGNETORESISTANCE IN HETEROGENEOUS CU-CO ALLOYS [J].

BERKOWITZ, AE ;

MITCHELL, JR ;

CAREY, MJ ;

YOUNG, AP ;

ZHANG, S ;

SPADA, FE ;

PARKER, FT ;

HUTTEN, A ;

THOMAS, G .

PHYSICAL REVIEW LETTERS, 1992, 68 (25) :3745-3748

[3] Giant magnetoresistance in magnetic nanostructures [J].

Fert, A ;

Morel, R ;

Barthelemy, A ;

Cros, V ;

Duvail, JL ;

George, JM ;

Parent, F ;

Petroff, F ;

Vouille, C .

JOURNAL DE PHYSIQUE IV, 1997, 7 (C6) :151-161

[4] FORMATION OF THERMODYNAMICALLY UNSTABLE SOLID-SOLUTIONS IN THE CU-CO SYSTEM BY MECHANICAL ALLOYING [J].

GENTE, C ;

OEHRING, M ;

BORMANN, R .

PHYSICAL REVIEW B, 1993, 48 (18) :13244-13252

[5] The giant magnetoresistance and magnetisation of sputter deposited Co/Cu multilayers [J].

Hall, MJ ;

Whitton, ED ;

Jardine, DB ;

Somekh, RE ;

Evetts, JE ;

Leake, JA .

THIN SOLID FILMS, 1996, 275 (1-2) :195-198

[6] SPUTTER DEPOSITION OF GIANT MAGNETORESISTIVE CO-CU MULTILAYERS [J].

HIGHMORE, RJ ;

SHIH, WC ;

SOMEKH, RE ;

EVETTS, JE .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1992, 116 (1-2) :249-258

[7] DIFFERENTIAL SCANNING CALORIMETRY STUDY OF SOLID-STATE AMORPHIZATION IN MULTILAYER THIN-FILM NI/ZR [J].

HIGHMORE, RJ ;

EVETTS, JE ;

GREER, AL ;

SOMEKH, RE .

APPLIED PHYSICS LETTERS, 1987, 50 (10) :566-568

[8] GIANT MAGNETORESISTANCE AT LOW FIELDS IN DISCONTINUOUS NIFE-AG MULTILAYER THIN-FILMS [J].

HYLTON, TL ;

COFFEY, KR ;

PARKER, MA ;

HOWARD, JK .

SCIENCE, 1993, 261 (5124) :1021-1024

[9] Increased field sensitivity in Co/Cu multilayers with soft adjacent layers [J].

Jardine, DB ;

Mathur, ND ;

Blamire, MG ;

Evetts, JE .

IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (04) :1297-1299

[10] Irreversibility in giant magnetoresistance and its relation to magnetic sub structure [J].

Jardine, DB ;

Hall, MJ ;

Somekh, RE ;

Evetts, JE .

THIN SOLID FILMS, 1996, 275 (1-2) :111-114