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Resultats globals: 12 registres trobats en 0.02 segons.
Articles, 12 registres trobats
Articles 12 registres trobats  1 - 10següent  anar al registre:
1.
4 p, 346.4 KB Large exchange bias and its connection to interface structure in FeF2-Fe bilayers / Nogués, Josep (University of California-San Diego. Physics Department) ; Lederman, D. (University of California, San Diego. Department of Physics) ; Moran, T. J.. (University of California, San Diego. Department of Physics) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; Rao, K. V. (Kungl. Tekniska högskolan. Department of Condensed Matter Physics) ; American Physical Society
Large exchange bias effects (ΔE 1. 1 erg/cm2) were observed in antiferromagnetic (FeF2)-ferromagnetic (Fe) bilayers grown on MgO. The FeF2 grows along the spin-compensated (110) direction. The FeF2-Fe interface roughness was characterized using specular and diffuse x-ray diffraction and atomic force microscopy. [...]
1996 - 10.1063/1.115819
Applied physics letters, Vol. 68, Issue 22 (May 1996) , p. 3186-3188  
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2.
4 p, 491.6 KB Magnetization reversal in long chains of submicrometric Co dots / Martín, J. I. (University of California, San Diego. Department of Physics) ; Nogués, Josep (University of California-San Diego. Physics Department) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; Van Bael, M. J. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme) ; Temst, Kristiaan (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme) ; Van Haesendonck, C. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme) ; Moshchalkov, V. V. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme) ; Bruynseraede, Y. (Katholieke Universiteit Leuven. Laboratorium voor Vaste-Stoffysica en Magnetisme) ; American Physical Society
Long chains of 400 nm diam Co dots prepared by combined electron-beam lithography exhibit interesting magnetotransport properties. The magnetoresistance of the chains of dots is markedly different from single Co films, indicating a strongly modified magnetization reversal process. [...]
1998 - 10.1063/1.120702
Applied physics letters, Vol. 72, Issue 2 (January 1998) , p. 255-257  
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3.
4 p, 311.7 KB Perpendicular coupling at Fe-FeF2 interfaces / Moran, T. J.. (University of California at San Diego. Physics Department) ; Nogués, Josep (University of California San Diego. Physics Department) ; Lederman, D. (University of California at San Diego. Physics Department) ; Schuller, Ivan K. (University of California at San Diego. Physics Department) ; American Physical Society
We have studied the exchange anisotropy of ferromagnetic Fe filmsgrown on antiferromagneticFeF2single crystals. The behavior of the hysteresis loops of the Fe above and below the Néel temperature TN of FeF2 indicates a 90° rotation of the ferromagnetic easy axis due to the antiferromagnetic ordering. [...]
1998 - 10.1063/1.120823
Applied physics letters, Vol. 72, Issue 5 (February 1998) , p. 617-619  
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4.
4 p, 299.5 KB Tuning exchange bias / Miltenyi, P. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Gierlings, M. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Bamming, M. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; May, U. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Güntherodt, G. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ; Gruyters, M. (Hahn-Meitner Institut Berlin) ; Leighton, C. (University of California, San Diego. Department of Physics) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; American Physical Society
The exchange bias shift of the hysteresis loop, HE, in antiferromagnetic/ferromagnetic layer systems can be easily controlled (within certain limits) by cooling in zero field from different magnetization states above the antiferromagnetic Néel temperature, TN. [...]
1999 - 10.1063/1.124998
Applied physics letters, Vol. 75, Issue 15 (October 1999) , p. 2304-2306  
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5.
4 p, 497.0 KB Magnetic domain and domain-wall imaging of submicron Co dots by probing the magnetostrictive response using atomic force microscopy / Wittborn, J. (Kungl. Tekniska högskolan. Department of Materials Science) ; Rao, K. V. (Kungl. Tekniska högskolan. Department of Materials Science) ; Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; American Physical Society
An approach to image the domains and domain walls of small ferromagnetic entities using atomic force microscopy(AFM), with a nonmagnetic AFM probe, has been developed. Exciting the sample in an external acmagnetic field, the distribution of magnetostrictive response at the surface is detected. [...]
2000 - 10.1063/1.126520
Applied physics letters, Vol. 76, Issue 20 (May 2000) , p. 2931-2933  
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6.
4 p, 306.1 KB Fabrication and thermal stability of arrays of Fe nanodots / Liu, Kai (University of California, San Diego. Department of Physics) ; Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ; Leighton, C. (University of Minnesota. Department of Chemical Engineering and Materials Science) ; Masuda, H. (Tōkyō Toritsu Daigaku. Department of Applied Chemistry) ; Nishio, K. (Tōkyō Toritsu Daigaku. Department of Applied Chemistry) ; Roshchin, I. V. (University of California, San Diego. Department of Physics) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; American Physical Society
We have fabricated arrays of 60-nm-size magnetic Fe nanodots over a 1-cm2 -size area using nanoporous alumina membranes as shadow masks. The size and size distribution of the nanodots correlate very well with that of the membrane pores. [...]
2002 - 10.1063/1.1526458
Applied physics letters, Vol. 81, Num. 23 (November 2002) , p. 4434-4436  
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7.
4 p, 394.7 KB Magneto-optical study of magnetization reversal asymmetry in exchange bias / Tillmanns, A. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Oertker, S. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Beschoten, Bernd (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Güntherodt, G. (Rheinisch-Westfälische Technische Hochschule Aachen. Institut für physikalisches) ; Leighton, C. (University of California, San Diego. Department of Physics) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ; American Physical Society
The asymmetric magnetization reversal in exchange biased Fe/MnF2 involves coherent (Stoner-Wohlfarth) magnetization rotation into an intermediate, stable state perpendicular to the applied field. We provide here the experimentally tested analytical conditions for the unambiguous observation of both longitudinal and transverse magnetization components using the magneto-optical Kerr effect. [...]
2006 - 10.1063/1.2392283
Applied physics letters, Vol. 89, Issue 20 (November 2006) , p. 202512  
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8.
4 p, 128.4 KB Positive exchange bias in FeF2-Fe bilayers / Nogués, Josep (University of California-San Diego. Physics Department) ; Lederman, D. (West Virginia University. Physics Department) ; Moran, T. J.. (University of California, San Diego. Department of Physics) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; American Physical Society
We have discovered a positive unidirectional exchange anisotropy in antiferromagnetic (FeF2) and ferromagnetic (Fe) bilayers cooled through the antiferromagnetic critical temperature TN in large magnetic fields. [...]
1996 - 10.1103/PhysRevLett.76.4624
Physical review letters, Vol. 76, Issue 24 (June 1996) , p. 4624-4627  
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9.
4 p, 174.7 KB Flux pinnig in a superconductor by an array of submicrometer magnetic dots / Martín, J. I. (University of California, San Diego. Department of Physics) ; Vélez, M. (University of California, San Diego. Department of Physics) ; Nogués, Josep (University of California-San Diego. Physics Department) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; American Physical Society
Triangular arrays of submicrometer magnetic dots, with typical spacing of 400-600 nm and diameters close to 200 nm, have been fabricated by electron beam lithography to study pinning effects on Nb thin films. [...]
1997 - 10.1103/PhysRevLett.79.1929
Physical review letters, Vol. 79, Issue 10 (September 1997) , p. 1929-1932  
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10.
4 p, 78.3 KB Asymmetric magnetization reversal in exchange-biased hysteresis loops / Fitzsimmons, M. R. (Los Alamos National Laboratory) ; Yashar, P. (Los Alamos National Laboratory) ; Leighton, C. (University of California, San Diego. Department of Physics) ; Schuller, Ivan K. (University of California, San Diego. Department of Physics) ; Nogués, Josep (Universitat Autònoma de Barcelona. Departament de Física) ; Majkrzak, C. F. (National Institute of Standards and Technology (Estats Units d'Amèrica)) ; Dura, J. (National Institute of Standards and Technology (Estats Units d'Amèrica)) ; American Physical Society
Polarized neutron reflectometry is used to probe the in-plane projection of the net-magnetization vector M of polycrystalline Fe films exchange coupled to twinned (110) MnF2 or FeF2 antiferromagnetic (AF) layers. [...]
2000 - 10.1103/PhysRevLett.84.3986
Physical review letters, Vol. 84, Issue 17 (April 2000) , p. 3986-3989  
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Articles : 12 registres trobats   1 - 10següent  anar al registre:
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1 Schuller, I. K.
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