Go to ScienceDirect® Home Skip Main Navigation Links Register or Login: Password: Home Search Browse Journals Browse Book Series and Reference Works Browse Abstract Databases My Profile Alerts Help (Opens New Window) Quick Search: within Quick Search searches abstracts, titles, keywords, and authors. Click here for more information. Results List Previous 29 of 31 Next Journal of Magnetism and Magnetic Materials Volume 234, Issue 3 , September 2001, Pages 584-595 This Document SummaryPlus Full Text + Links PDF (202 K) Actions Cited By Save as Citation Alert E-mail Article Export Citation doi:10.1016/S0304-8853(01)00421-8 How to Cite or Link Using DOI (Opens New Window) Copyright © 2001 Elsevier Science B.V. All rights reserved. Topical review Exchange bias theory Miguel KiwiCorresponding Author Contact Information <#m4.cor*>, E-mail The Corresponding Author Facultad de Física, Pontificia Universidad Católica de Chile, Casilla 306, Santiago de Chile 6904411, Chile Received 8 March 2001; revised 1 June 2001. Available online 19 September 2001. Abstract Research on the exchange bias (EB) phenomenon has witnessed a flurry of activity during recent years, which stems from its use in magnetic sensors and as stabilizers in magnetic reading heads. EB was discovered in 1956 but it attracted only limited attention until these applications, closely related to giant magnetoresistance, were developed during the last decade. In this review, I initially give a short introduction, listing the most salient experimental results and what is required from an EB theory. Next, I indicate some of the obstacles in the road towards a satisfactory understanding of the phenomenon. The main body of the text reviews and critically discusses the activity that has flourished, mainly during the last 5 years, in the theoretical front. Finally, an evaluation of the progress made, and a critical assessment as to where we stand nowadays along the road to a satisfactory theory, is presented. Author Keywords: Exchange bias; Magnetic multilayers; Interfaces; Nanostructures; Magnetic devices PACS classification codes: 75.70.i; 75.60.Ej; 75.70.Cn; 75.60.Ch; 75.30.Gw Article Outline 1. Introduction 2. Interface structure: a hard nut to crack 3. Theoretical models 3.1. Early work 3.2. The ground breaking contribution of Néel 3.3. Early random interface model 3.4. AF domain wall models 3.5. Orthogonal F and AF magnetic lattices 3.6. Random interface field models 3.7. The frozen interface model 3.8. Local pinning field variation 4. Summary and discussion Acknowledgements References Enlarge Image (2K) Fig. 1. Magnetically collinear interface configuration. (a) Ferromagnetic coupling across the interface: JF/AF>0; and (b) AF coupling: JF/AF<0. Enlarge Image (3K) Fig. 2. Two examples of possible noncollinear interface configurations. Enlarge Image (2K) Fig. 3. AF rough interface with frustrated interactions marked by full dots. The dashed line marks the boundary between the F and the AF. Enlarge Image (7K) Fig. 4. Illustration of the perpendicular F and AF magnetic interface configuration, with spin canting in the first AF layer. Table 1. Full Size Table References 1. W.P. Meiklejohn and C.P. Bean. Phys. Rev. 102 (1956), p. 1413. Full Text via CrossRef 2. J. Nogués and I. K. Schuller. J. Magn. Magn. Mater. 192 (1999), p. 203 and references therein. Abstract | PDF (383 K) 3. A.E. Berkowitz and K. Takano. J. Magn. Magn. Mater. 200 (1999), p. 552 and references therein. SummaryPlus | Full Text + Links | PDF (433 K) 4. R.L. Stamps. J. Phys. D: Appl. Phys. 33 (2000), p. R247 and references therein. 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Abstract-INSPEC | $Order Document | APS full text | Full Text via CrossRef Corresponding Author Contact Information <#m4.bcor*> Corresponding author. Tel.: +56-2-354-4476; fax: +56-2-553-6468; email: mkiwi@puc.cl This Document SummaryPlus Full Text + Links PDF (202 K) Actions Cited By Save as Citation Alert E-mail Article Export Citation Journal of Magnetism and Magnetic Materials Volume 234, Issue 3 , September 2001, Pages 584-595 Results List Previous 29 of 31 Next Home Search Browse Journals Browse Book Series and Reference Works Browse Abstract Databases My Profile Alerts Help (Opens New Window) Feedback | Terms & Conditions | Privacy Policy Copyright © 2005 Elsevier B.V. All rights reserved. ScienceDirect® is a registered trademark of Elsevier B.V.