Light-induced magnetization reversal of high-anisotropy TbCo alloy films
Sabine Alebrand,Matthias Georg Gottwald,Matthias Georg Gottwald,Michel Hehn,Daniel Steil,Mirko Cinchetti,Daniel Lacour,Eric E. Fullerton,Martin Aeschlimann,Stéphane Mangin +9 more
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TLDR
In this paper, the authors demonstrate all-optical magnetization switching for different TbxCo1-x ferrimagnetic alloy composition and demonstrate alloptical switching for films with anisotropy fields reaching 6 T corresponding to anisotropic constants of 3x106 ergs/cm3.Abstract:
Magnetization reversal using circularly polarized light provides a new way to control magnetization without any external magnetic field and has the potential to revolutionize magnetic data storage. However, in order to reach ultra-high density data storage, high anisotropy media providing thermal stability are needed. Here, we evidence all-optical magnetization switching for different TbxCo1-x ferrimagnetic alloy composition and demonstrate all-optical switching for films with anisotropy fields reaching 6 T corresponding to anisotropy constants of 3x106 ergs/cm3. Optical magnetization switching is observed only for alloys which compensation temperature can be reached through sample heating.read more
Citations
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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
All-optical control of ferromagnetic thin films and nanostructures
C-H Lambert,C-H Lambert,Stéphane Mangin,Stéphane Mangin,B. S. D. Ch. S. Varaprasad,Yukiko Takahashi,Michel Hehn,Mirko Cinchetti,Gregory Malinowski,Kazuhiro Hono,Yeshaiahu Fainman,Martin Aeschlimann,Eric E. Fullerton +12 more
TL;DR: This work demonstrates optical control of ferromagnetic materials ranging from magnetic thin films to multilayers and even granular films being explored for ultra-high-density magnetic recording, and shows that Optical control of magnetic materials is a much more general phenomenon than previously assumed.
Journal ArticleDOI
Engineered materials for all-optical helicity-dependent magnetic switching.
Stéphane Mangin,Stéphane Mangin,Matthias Georg Gottwald,Charles-Henri Lambert,Charles-Henri Lambert,Daniel Steil,V. Uhlíř,L. Pang,Michel Hehn,Sabine Alebrand,Mirko Cinchetti,Gregory Malinowski,Gregory Malinowski,Yeshaiahu Fainman,Martin Aeschlimann,Eric E. Fullerton +15 more
TL;DR: It is demonstrated that all-optical helicity-dependent switching (AO-HDS) can be observed not only in selected rare earth-transition metal alloy films but also in a much broader variety of materials, including RE-TM alloys, multilayers and heterostructures.
Journal ArticleDOI
The 2017 Magnetism Roadmap
D. Sander,Sergio O. Valenzuela,Sergio O. Valenzuela,Denys Makarov,Christopher H. Marrows,Eric E. Fullerton,Peter Fischer,Peter Fischer,Jeffrey McCord,Paolo Vavassori,Stéphane Mangin,Philipp Pirro,Burkard Hillebrands,Andrew D. Kent,Tomas Jungwirth,Tomas Jungwirth,Oliver Gutfleisch,CheolGi Kim,Andreas Berger +18 more
TL;DR: The 2017 Magnetism Roadmap as mentioned in this paper is the most recent edition of the magnetism roadmap, which is intended to provide a reference point and guideline for emerging research directions in modern magnetism.
Journal ArticleDOI
Two types of all-optical magnetization switching mechanisms using femtosecond laser pulses
M. S. El Hadri,Philipp Pirro,Charles-Henri Lambert,Sébastien Petit-Watelot,Yassine Quessab,Michel Hehn,François Montaigne,Gregory Malinowski,Stéphane Mangin +8 more
TL;DR: In this article, a time-dependent electrical investigation of the all-optical switching in ferrimagnetic and ferromagnetic Hall crosses via the anomalous Hall effect is presented.
References
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All-optical magnetic recording with circularly polarized light.
C.D. Stanciu,Fredrik Hansteen,Alexey Kimel,Andrei Kirilyuk,Arata Tsukamoto,Akiyoshi Itoh,Theo Rasing +6 more
TL;DR: It is experimentally demonstrate that the magnetization can be reversed in a reproducible manner by a single 40 femtosecond circularly polarized laser pulse, without any applied magnetic field, revealing an ultrafast and efficient pathway for writing magnetic bits at record-breaking speeds.
Journal ArticleDOI
Current-induced magnetization reversal in nanopillars with perpendicular anisotropy
Stéphane Mangin,Dafiné Ravelosona,Jordan A. Katine,Matthew J. Carey,Bruce D. Terris,Eric E. Fullerton +5 more
TL;DR: In this paper, the authors describe an experimental demonstration of current-induced magnetic reversal of nanopillars with perpendicular anisotropy and high coercive fields, and the best results are observed for Co/Ni multilayers, which have higher giant magnetoresistance values and spin-torque efficiencies than Co/Pt multilayer.
Journal ArticleDOI
Heat Assisted Magnetic Recording
Mark H. Kryder,Edward Charles Gage,Terry McDaniel,William Albert Challener,Robert Earl Rottmayer,Ganping Ju,Yiao-Tee Hsia,Mehmet Fatih Erden +7 more
TL;DR: The challenges for heat-assisted magnetic recording are surveyed and the progress that has been made in addressing them are surveyed.
Journal ArticleDOI
Magnetic vortex core reversal by excitation with short bursts of an alternating field
B. Van Waeyenberge,A. Puzic,Hermann Stoll,Kang Wei Chou,Tolek Tyliszczak,Riccardo Hertel,Manfred Fähnle,H. Bruckl,Karsten Rott,Günter Reiss,Ingo Neudecker,Dieter Weiss,Christian H. Back,Gisela Schütz +13 more
TL;DR: It is demonstrated that the sense of gyration of the vortex structure can be reversed by applying short bursts of the sinusoidal excitation field with amplitude of about 1.5 mT, unambiguously indicates a switching of the out-of-plane core polarization.