Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
In Symposium Q on Magnetic Thin Films, Heterostructures, and Device Materials, spin-dependent tunneling junctions were presented, with a particular focus on Fe/MgO/Fe junctions. Tunneling magnetoresistance values in this system have recently attained up to 350% at room temperature, several times higher than those seen in any other materials system. High magnetoresistance values were presented experimentally, treated through ab initio models, and correlated with MgO barrier structure by in situ STM and XPs characterization. Prospects for incorporation into nonvolatile magnetic RAM devices were also reviewed. Among other highlights were possibilities for novel interactions of ferromagnetic layers with other functional material types; novel rectifying possibilities, predicted theoretically, for the integration of ferroelectric such as SrTiO3, in the tunnel barrier between metallic Co electrodes; unambiguous proof of electrical injection and detection of spin-polarized electrons from metallic ferromagnets through GaAs, through the Hanle effect; and all-oxide magnetic tunneling junctions based on NiMn2O4 barriers. Materials approaches to increasing subnanosecond switching speeds, critical for high-data-rate (>% GHz) information storage, were presented. It was shown that the damping constant for high-speed motion can be predicted from first principles only in layered structures; controlled in epitaxial Fe alloys, potentially reduced below the intrinsic value of pure Fe; correlated with the femtosecond demagnetization process; and understood microscopically through picosecond-scale time-resolved x-ray spectroscopy. Composition spread approaches for the discovery of high-frequency magnetic materials were also reviewed.
Symposium Q: Magnetic Thin Films, Heterostructures, and Device Materials
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
In Symposium Q on Magnetic Thin Films, Heterostructures, and Device Materials, spin-dependent tunneling junctions were presented, with a particular focus on Fe/MgO/Fe junctions. Tunneling magnetoresistance values in this system have recently attained up to 350% at room temperature, several times higher than those seen in any other materials system. High magnetoresistance values were presented experimentally, treated through ab initio models, and correlated with MgO barrier structure by in situ STM and XPs characterization. Prospects for incorporation into nonvolatile magnetic RAM devices were also reviewed. Among other highlights were possibilities for novel interactions of ferromagnetic layers with other functional material types; novel rectifying possibilities, predicted theoretically, for the integration of ferroelectric such as SrTiO3, in the tunnel barrier between metallic Co electrodes; unambiguous proof of electrical injection and detection of spin-polarized electrons from metallic ferromagnets through GaAs, through the Hanle effect; and all-oxide magnetic tunneling junctions based on NiMn2O4 barriers. Materials approaches to increasing subnanosecond switching speeds, critical for high-data-rate (>% GHz) information storage, were presented. It was shown that the damping constant for high-speed motion can be predicted from first principles only in layered structures; controlled in epitaxial Fe alloys, potentially reduced below the intrinsic value of pure Fe; correlated with the femtosecond demagnetization process; and understood microscopically through picosecond-scale time-resolved x-ray spectroscopy. Composition spread approaches for the discovery of high-frequency magnetic materials were also reviewed.
Publisher:
ISBN:
Category :
Languages : en
Pages : 25
Book Description
In Symposium Q on Magnetic Thin Films, Heterostructures, and Device Materials, spin-dependent tunneling junctions were presented, with a particular focus on Fe/MgO/Fe junctions. Tunneling magnetoresistance values in this system have recently attained up to 350% at room temperature, several times higher than those seen in any other materials system. High magnetoresistance values were presented experimentally, treated through ab initio models, and correlated with MgO barrier structure by in situ STM and XPs characterization. Prospects for incorporation into nonvolatile magnetic RAM devices were also reviewed. Among other highlights were possibilities for novel interactions of ferromagnetic layers with other functional material types; novel rectifying possibilities, predicted theoretically, for the integration of ferroelectric such as SrTiO3, in the tunnel barrier between metallic Co electrodes; unambiguous proof of electrical injection and detection of spin-polarized electrons from metallic ferromagnets through GaAs, through the Hanle effect; and all-oxide magnetic tunneling junctions based on NiMn2O4 barriers. Materials approaches to increasing subnanosecond switching speeds, critical for high-data-rate (>% GHz) information storage, were presented. It was shown that the damping constant for high-speed motion can be predicted from first principles only in layered structures; controlled in epitaxial Fe alloys, potentially reduced below the intrinsic value of pure Fe; correlated with the femtosecond demagnetization process; and understood microscopically through picosecond-scale time-resolved x-ray spectroscopy. Composition spread approaches for the discovery of high-frequency magnetic materials were also reviewed.
Magnetic Thin Films, Heterostructures and Device Materials
Author:
Publisher:
ISBN: 9781558998988
Category : Heterostructures
Languages : en
Pages : 79
Book Description
Publisher:
ISBN: 9781558998988
Category : Heterostructures
Languages : en
Pages : 79
Book Description
Magnetic Ultra Thin Films, Multilayers and Surfaces
Author: F. Petroff
Publisher: Elsevier
ISBN: 9780444205032
Category : Science
Languages : en
Pages : 560
Book Description
The Symposium on Magnetic Ultrathin Films, Multilayers and Surfaces, hosted by the European Materials Research Society, was held at the Palais de la Musique et des Congré in Strasbourg, France on June 4-7, 1996. Its central theme was the relationship of magnetic properties and device performance to structure at the nano and micrometer length scale. Research on the magnetism of surfaces, ultrathin films and multilayers has increased dramatically during recent years. This development was triggered by the discovery of coupling between ferromagnetic layers across nonmagnetic spacer layers and of the giant magnetoresistance effect in systems of reduced dimension using various micro and nanofabrication techniques has become a subject of special interest. It is certainly the promising application potential of these effects in new magnetic recording device geometries which causes this intensive research, which is done both by companies and at universities and research institutes. A selection of invited and contributed papers presented at the Symposium and accepted for publication is contained in this volume. The contents of these proceedings are organized into seven sections. A. Nanowires, Nanoparticles, Nanostructuring B. Ultrathin Films and Surfaces, Characterization C. Giant Magnetoresistance D. Coupling, Tunneling E. Growth, Structure, Magnetism F. Growth, Structure, Magnetoresistance G. Coupling, Magnetic processes, Magneto-optics. The first four sections contain invited and oral contributed papers in the listed research domains, while the last three sections contain the contributions presented during three large poster sessions.
Publisher: Elsevier
ISBN: 9780444205032
Category : Science
Languages : en
Pages : 560
Book Description
The Symposium on Magnetic Ultrathin Films, Multilayers and Surfaces, hosted by the European Materials Research Society, was held at the Palais de la Musique et des Congré in Strasbourg, France on June 4-7, 1996. Its central theme was the relationship of magnetic properties and device performance to structure at the nano and micrometer length scale. Research on the magnetism of surfaces, ultrathin films and multilayers has increased dramatically during recent years. This development was triggered by the discovery of coupling between ferromagnetic layers across nonmagnetic spacer layers and of the giant magnetoresistance effect in systems of reduced dimension using various micro and nanofabrication techniques has become a subject of special interest. It is certainly the promising application potential of these effects in new magnetic recording device geometries which causes this intensive research, which is done both by companies and at universities and research institutes. A selection of invited and contributed papers presented at the Symposium and accepted for publication is contained in this volume. The contents of these proceedings are organized into seven sections. A. Nanowires, Nanoparticles, Nanostructuring B. Ultrathin Films and Surfaces, Characterization C. Giant Magnetoresistance D. Coupling, Tunneling E. Growth, Structure, Magnetism F. Growth, Structure, Magnetoresistance G. Coupling, Magnetic processes, Magneto-optics. The first four sections contain invited and oral contributed papers in the listed research domains, while the last three sections contain the contributions presented during three large poster sessions.
Magnetic Surfaces, Thin Films, and Multilayers
Author: Stuart S. P. Parkin
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 536
Book Description
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 536
Book Description
Science
Author: John Michels (Journalist)
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1080
Book Description
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 1080
Book Description
Magnetic Thin Films, Multilayers and Superlattices
Author: A Fert
Publisher:
ISBN: 9780444890696
Category :
Languages : en
Pages :
Book Description
Publisher:
ISBN: 9780444890696
Category :
Languages : en
Pages :
Book Description
R & D
Author:
Publisher:
ISBN:
Category : Research, Industrial
Languages : en
Pages : 818
Book Description
Publisher:
ISBN:
Category : Research, Industrial
Languages : en
Pages : 818
Book Description
Research & Development
Author:
Publisher:
ISBN:
Category : Research, Industrial
Languages : en
Pages : 320
Book Description
Publisher:
ISBN:
Category : Research, Industrial
Languages : en
Pages : 320
Book Description
Proceedings of the International Symposium on Magnetic Ultra Thin Films, Multilayers and Surfaces
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 566
Book Description
Publisher:
ISBN:
Category :
Languages : en
Pages : 566
Book Description
Magnetic Ultrathin Films
Author: Materials Research Society
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 866
Book Description
Publisher:
ISBN:
Category : Technology & Engineering
Languages : en
Pages : 866
Book Description