1.
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39 p, 1.5 MB |
Two-dimensional materials prospects for non-volatile spintronic memories
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Yang, Hyunsoo (National University of Singapore. Department of Electrical and Computer Engineering) ;
Valenzuela, Sergio O. (Institut Català de Nanociència i Nanotecnologia) ;
Chshiev, Mairbek (SPINtronique et TEchnologie des Composants) ;
Couet, Sébastien (Imec) ;
Dieny, Bernard (SPINtronique et TEchnologie des Composants) ;
Dlubak, Bruno (Unité Mixte de Physique. CNRS. Thales. Université Paris-Saclay) ;
Fert, Albert (Université Paris-Saclay. Unité Mixte de Physique) ;
Garello, Kevin (SPINtronique et TEchnologie des Composants) ;
Jamet, Matthieu (SPINtronique et TEchnologie des Composants) ;
Jeong, Dae-Eun (Samsung Electronics Co.) ;
Lee, Kangho (Samsung Electronics Co.) ;
Lee, Taeyoung (GLOBALFOUNDRIES Singapore Pte. Ltd.) ;
Martin, Marie-Blandine (Université Paris-Saclay. Unité Mixte de Physique) ;
Kar, Gouri Sankar (Imec) ;
Sénéor, Pierre (Université Paris-Saclay. Unité Mixte de Physique) ;
Shin, Hyeon-Jin (Samsung Advanced Institute of Technology) ;
Roche, Stephan (Institut Català de Nanociència i Nanotecnologia)
Non-volatile magnetic random-access memories (MRAMs), such as spin-transfer torque MRAM and next-generation spin-orbit torque MRAM, are emerging as key to enabling low-power technologies, which are expected to spread over large markets from embedded memories to the Internet of Things. [...]
2022 - 10.1038/s41586-022-04768-0
Nature, Vol. 606, issue 7915 (June 2022) , p. 663-673
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2.
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6 p, 514.5 KB |
Tailoring the magnetization reversal of elliptical dots using exchange bias (invited)
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Sort Viñas, Jordi (Institució Catalana de Recerca i Estudis Avançats) ;
Buchanan, K. S. (Argonne National Laboratory. Materials Science Division) ;
Pearson, J. E. (Argonne National Laboratory. Materials Science Division) ;
Hoffmann, Axel (Argonne National Laboratory. Materials Science Division) ;
Menéndez Dalmau, Enric (Universitat Autònoma de Barcelona. Departament de Física) ;
Salazar Álvarez, Germán (Institut Català de Nanociència i Nanotecnologia) ;
Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física) ;
Miron, M. ((SPINTEC (Spin Electronics Research))) ;
Rodmacq, B. ((SPINTEC (Spin Electronics Research))) ;
Dieny, B. ((SPINTEC (Spin Electronics Research))) ;
Nogués, Josep (Institut Català de Nanociència i Nanotecnologia)
Exchange bias effects have been studied in elliptical dots composed of ferromagnetic Ni80Fe20-antiferromagnetic Ir20Mn80 bilayers. The magnetization reversal mechanisms and magnetic configurations have been investigated by magneto-optic Kerr effect and magnetic force microscopy. [...]
2008 - 10.1063/1.2840467
Journal of applied physics, Vol. 103, Núm. 7 (April 2008) , p. 7C109/1-7C109/5
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3.
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4 p, 325.4 KB |
Using exchange bias to extend the temperature range of square loop behavior in [Pt/Co] multilayers with perpendicular anisotropy
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Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
Suriñach, Santiago (Suriñach Cornet) (Universitat Autònoma de Barcelona. Departament de Física) ;
Garcia, F. (SPINTEC (Spin Electronics Research)) ;
Auffret, Stéphane (SPINTEC (Spin Electronics Research)) ;
Rodmacq, B. (SPINTEC (Spin Electronics Research)) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
Langlais, Veronique (Universitat Autònoma de Barcelona. Departament de Física) ;
Muñoz Domínguez, Juan Santiago (Universitat Autònoma de Barcelona. Departament de Física) ;
Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física) ;
Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física)
The temperature dependence of the magnetic properties of [Pt/Co]multilayers (ML), exhibiting perpendicular anisotropy, with and without exchange biasing with an antiferromagnet(AFM) has been investigated. [...]
2005 - 10.1063/1.2139840
Applied physics letters, Vol. 87, Issue 24 (December 2005) , p. 242504/1-242504/3
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4.
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4 p, 219.8 KB |
Pinned synthetic ferrimagnets with perpendicular anisotropy and tuneable exchange bias
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Sort Viñas, Jordi (SPINTEC (Spin Electronics Research)) ;
Rodmacq, B. (SPINTEC (Spin Electronics Research)) ;
Auffret, Stéphane (SPINTEC (Spin Electronics Research)) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
American Physical Society
Pinned synthetic ferrimagnets (syFerri) with perpendicular-to-plane magnetic anisotropy, of the form AP1/Ru/AP2/FeMn [where AP1 and AP2 are (Co/Pt) multilayers], have been prepared and characterized. [...]
2003 - 10.1063/1.1606495
Applied physics letters, Vol. 83, Issue 9 (August 2003) , p. 1800-1802
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5.
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4 p, 233.4 KB |
Large anomalous enhancement of perpendicular exchange bias by introduction of a nonmagnetic spacer between the ferromagnetic and antiferromagnetic layers
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Garcia, F. (SPINTEC (Spin Electronics Research)) ;
Sort Viñas, Jordi (SPINTEC (Spin Electronics Research)) ;
Rodmacq, B. (SPINTEC (Spin Electronics Research)) ;
Auffret, Stéphane (SPINTEC (Spin Electronics Research)) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
American Physical Society
In (Pt/Co)n/FeMnmultilayers, the magnitude of exchange bias,HE, can be considerably enhanced by placing an ultrathin nonmagnetic Pt spacer between the multilayer (ML) and the antiferromagnetic(AFM) layer. [...]
2003 - 10.1063/1.1619562
Applied physics letters, Vol. 83, Issue 17 (October 2003) , p. 3537-3539
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6.
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4 p, 232.0 KB |
Size effects on exchange bias in sub-100 nm ferromagnetic-antiferromagnetic dots deposited on prepatterned substrates
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Baltz, Vincent (SPINTEC (Spin Electronics Research)) ;
Sort Viñas, Jordi (SPINTEC (Spin Electronics Research)) ;
Rodmacq, B. (SPINTEC (Spin Electronics Research)) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
Landis, S. (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
American Physical Society
Exchange bias effects have been investigated in ferromagnetic (FM)-antiferromagnetic (AFM) square dots, with lateral sizes of 90 nm, sputtered on a prepatterned Si substrate. The magnetic behavior of the dots has been compared with that of a continuous FM-AFM bilayer with the same composition. [...]
2004 - 10.1063/1.1757646
Applied physics letters, Vol. 84, Issue 24 (May 2004) , p. 4923-4925
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7.
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4 p, 386.2 KB |
Perpendicular exchange bias in antiferromagnetic-ferromagnetic nanostructures
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Sort Viñas, Jordi (SPINTEC (Spin Electronics Research)) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
Fraune, M. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ;
Koenig, C. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ;
Lunnebach, F. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ;
Beschoten, Bernd (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ;
Guntherodt, G. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ;
American Physical Society
Exchange bias effects have been induced along the perpendicular-to-film direction in nanostructures prepared by electron beamlithography, consisting of a ferromagnetic [Pt/Co] multilayer exchange coupled to an antiferromagnet (FeMn). [...]
2004 - 10.1063/1.1737484
Applied physics letters, Vol. 84, Issue 18 (April 2004) , p. 3696-3698
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8.
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4 p, 289.4 KB |
Out-of-plane exchange bias in [Pt/Co]-IrMn bilayers sputtered on prepatterned nanostructures
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Bollero, A. (SPINTEC (Spin Electronics Research)) ;
Baltz, Vincent (SPINTEC (Spin Electronics Research)) ;
Rodmacq, B. (SPINTEC (Spin Electronics Research)) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
Landis, S. (Commissariat à l'Énergie Atomique et aux Énergies Alternatives (França)) ;
Sort Viñas, Jordi (Universitat Autònoma de Barcelona. Departament de Física) ;
American Physical Society
Exchange bias effects along the out-of-plane direction have been investigated in arrays of 100nmnanostructures prepared on top of prepatterned substrates, consisting of a ferromagnetic [Pt/Co] multilayer with out-of-plane anisotropy exchange coupled to an antiferromagnetic IrMn layer. [...]
2006 - 10.1063/1.2359429
Applied physics letters, Vol. 89, Issue 15 (October 2006) , p. 152502/1-152502/3
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9.
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4 p, 665.4 KB |
Magnetization reversal, asymmetry, and role of uncompensated spins in perpendicular exchange coupled systems
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Camarero, Julio (Universidad Autónoma de Madrid. Departamento de Física de la Materia Condensada) ;
Miguel, J. (University of Amsterdam. Van der Waals-Zeeman Institute) ;
Goedkoop, J. B. (University of Amsterdam. Van der Waals-Zeeman Institute) ;
Vogel, J. (Laboratoire Louis Neel (Grenoble, França)) ;
Romanens, F. (Laboratoire Louis Neel (Grenoble, França)) ;
Pizzini, S. (Laboratoire Louis Neel (Grenoble, França)) ;
Garcia, F. (SPINTEC (Spin Electronics Research)) ;
Sort Viñas, Jordi (SPINTEC (Spin Electronics Research)) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
Brookes, N. B. (European Synchrotron Radiation Facility) ;
American Physical Society
Soft x-ray resonant magnetic scattering has been used to investigate the element-selective microscopic magnetization reversal behavior of room temperature perpendicular exchange coupled ferromagnetic∕antiferromagnetic (F∕AF) systems and to study the role of the interfacial coupling strength on it. [...]
2006 - 10.1063/1.2402882
Applied physics letters, Vol. 89, Issue 23 (December2006) , p. 232507/1-232507/3
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10.
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4 p, 246.2 KB |
Controlling magnetic vortices through exchange bias
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Sort Viñas, Jordi (Institució Catalana de Recerca i Estudis Avançats) ;
Salazar Álvarez, Germán (Universitat Autònoma de Barcelona. Departament de Física) ;
Baró, M. D.. (Universitat Autònoma de Barcelona. Departament de Física) ;
Dieny, B. (SPINTEC (Spin Electronics Research)) ;
Hoffmann, Axel (Argonne National Laboratory. Materials Science Division) ;
Novosad, V. (Argonne National Laboratory. Materials Science Division) ;
Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ;
American Physical Society
The magnetization reversal in Permalloy (Py) and Py-IrMn disks (1μm diameter) is investigated. The Py disks reverse their magnetization via vortex state formation. Conversely, if the Py-IrMn disks are field cooled from above the blocking temperatureTB, a critical angle with respect to the cooling direction is set, beyond which the vortex no longer nucleates. [...]
2006 - 10.1063/1.2165290
Applied physics letters, Vol. 88, Issue 4 (January 2006) , p. 042502/1-042502/3
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