Journal ArticleDOI
Thermodynamic measurements of magnetic ordering in antiferromagnetic superlattices
TLDR
Direct measurements of heat capacity from 80 to 540 K of antiferromagnetic superlattices of NiO, CoO, and MgO are used to study the effect of exchange coupling and layer thickness on magnetic ordering.Abstract:
Direct measurements of heat capacity from 80 to 540 K of antiferromagnetic superlattices of NiO (high Neel temperature TN ), CoO (low TN ), and MgO (nonmagnetic) are used to study the effect of exchange coupling and layer thickness on magnetic ordering. NiOyCoO superlattices with thin layers show a single heat capacity peak similar to a Ni0.5Co0.5O alloy; with increasing layer thickness, the peak splits into two maxima. Finite size effects are seen in uncoupled NiO and CoO. Observed shifts in TN show the importance of correlation lengths and spin fluctuations in the ordering. [S0031-9007(96)01343-9]read more
Citations
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Journal ArticleDOI
Antiferromagnetic spintronics
TL;DR: A review of the most prominent spintronic effects described based on theoretical and experimental analysis of antiferromagnetic materials can be found in this article, where the authors discuss some of the remaining bottlenecks and suggest possible avenues for future research.
Journal ArticleDOI
Exchange anisotropy — a review
Ami E. Berkowitz,Kentaro Takano +1 more
TL;DR: In this article, the unidirectional anisotropy of a ferromagnetic bilayer coupled to an antiferromagnetic film was studied. But the authors focused on the unideal anismotropy produced by the exchange bias field produced by a metal and an oxide bilayer.
Journal ArticleDOI
Interface-induced phenomena in magnetism
Frances Hellman,Axel Hoffmann,Yaroslav Tserkovnyak,Geoffrey S. D. Beach,Eric E. Fullerton,Chris Leighton,Allan H. MacDonald,Daniel C. Ralph,Dario Arena,Hermann A. Dürr,Peter Fischer,Julie Grollier,Joseph P. Heremans,Tomas Jungwirth,Tomas Jungwirth,Alexey Kimel,B Bert Koopmans,Ilya Krivorotov,Steven J. May,Amanda K. Petford-Long,James M. Rondinelli,Nitin Samarth,Ivan K. Schuller,Ivan K. Schuller,Andrei Slavin,Mark D. Stiles,Oleg Tchernyshyov,André Thiaville,Barry L. Zink +28 more
TL;DR: This article reviews static and dynamic interfacial effects in magnetism, focusing on interfacially-driven magnetic effects and phenomena associated with spin-orbit coupling and intrinsic symmetry breaking at interfaces, identifying the most exciting new scientific results and pointing to promising future research directions.
Journal ArticleDOI
Observation of antiferromagnetic domains in epitaxial thin films
Andreas Scholl,Joachim Stöhr,Jan Lüning,Jin Won Seo,Jean Fompeyrine,Heinz Siegwart,Jean-Pierre Locquet,Frithjof Nolting,Simone Anders,Eric E. Fullerton,M. R. Scheinfein,Howard A. Padmore +11 more
TL;DR: These studies open the door for a microscopic understanding of the magnetic coupling across antiferromagnetic-ferromagnetic interfaces.
Journal ArticleDOI
Two interface effects: Exchange bias and magnetic proximity
P. K. Manna,S. M. Yusuf +1 more
TL;DR: In this article, the magnetic proximity effect is used to enhance the operating temperature of an exchange biased device by exploiting its magnetic proximity properties, and the authors conclude that one can enhance the operation temperature of a magnetically coupled system by exploiting magnetic proximity effects.
References
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Journal ArticleDOI
Design and read performance of GMR heads with NiO
Kazuhiro Nakamoto,Yoshiaki Kawato,Yoshio Suzuki,Yoshihiro Hamakawa,Takashi Kawabe,K. Fujimoto,Moriaki Fuyama,Yutaka Sugita +7 more
TL;DR: In this article, the NiO/NiFe/Co/CuNiFe films have been designed, fabricated, and their read performance was tested, and it was shown that output was reduced significantly when the exchange coupling field on the pinned layer was smaller than 200 Oe due to tilting of the magnetization of the NiFe layer.