Propriétés des ondes de spin stationnaires dans les films minces de permalloy et étude en température de la constante d'échange PDF Download
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Author: Alain Stankoff
Publisher:
ISBN:
Category :
Languages : fr
Pages : 126
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Book Description
Author: Alain Stankoff
Publisher:
ISBN:
Category :
Languages : fr
Pages : 126
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Book Description
Author: Samed Halilov
Publisher: Springer Science & Business Media
ISBN: 1402027087
Category : Science
Languages : en
Pages : 260
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Book Description
Most recent publications on spin-related phenomena focus on technological aspects of spin-dependent transport, with emphasis on the specific needs of spintronics. The present publication targets rather fundamental problems related to the physics of spin in solids, such as: (1) manifestation of spin and orbital polarization in spectroscopy, including valence and X-ray photoemission, magneto-optics, low-energy electron scattering on the surface; (2) application of new methods for interpretation and determination of magnetic low-lying excitations in the bulk and on the surface; (3) recent progress in evaluation of different type of magnetic forces including spin-orbit and exchange interaction, with subsequent determination of anisotropy and spin-ordering structure; (4) general problems of spin-dependent transport in semiconductors and metals, such as current-caused torque effect on spins at interfaces and spin injection in quantum dot systems; (5) problems in understanding the spin-dependent trends in unconventional superconductors; (6) many-body problems in solid state physics and recent progress in evaluation of self-energy effects; (7) fabrication of new magnetic materials with pre-programmed properties based on assembly from nano-particles, etc.
Author: Gabor Suran
Publisher:
ISBN:
Category :
Languages : fr
Pages : 166
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Book Description
DEVELOPPEMENT D'UNE THEORIE NOUVELLE DE LA RESONANCE FERROMAGNETIQUE DES COUCHES MINCES MAGNETOSTRICTIVES POLYCRISTALLINES SOUMISES A UNE DEFORMATION ELASTIQUE ISOTROPE PLANE. SUIVANT LA VALEUR DU CHAMP D'ANISOTROPIE EFFECTIF, ON UTILISE L'APPROXIMATION DES GRAINS INDEPENDANTS OU L'APPROXIMATION DES ONDES DE SPIN. ETUDE TRES DETAILLEE DE LA PREPARATION ET DES PROPRIETES MICROSTRUCTURALES DES COUCHES, MISE EN EVIDENCE DE L'INFLUENCE DE LA T DE FRITTAGE. RESULTATS EXPERIMENTAUX EN POLARISATION PERPENDICULAIRE EN FONCTION DE L'EPAISSEUR DE LA COUCHE. INTERPRETATION. LES MODES OBSERVES SONT DE DEUX TYPES: SINGULARITES DE LA COURBE DE RESONANCE ET MODES D'ONDES DE SPIN STATIONNAIRES PERTURBES PAR L'ENERGIE MAGNETOELASTIQUE. EVOLUTION DU SPECTRE DE RESONANCE QUAND ON SUPPRIME PROGRESSIVEMENT LES CONTRAINTES
Author: Bernard Waksmann
Publisher:
ISBN:
Category :
Languages : fr
Pages : 222
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Book Description
Author: Agnes Buka
Publisher: World Scientific
ISBN: 1848167997
Category : Science
Languages : en
Pages : 299
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Book Description
The book intends to give a state-of-the-art overview of flexoelectricity, a linear physical coupling between mechanical (orientational) deformations and electric polarization, which is specific to systems with orientational order, such as liquid crystals. Chapters written by experts in the field shed light on theoretical as well as experimental aspects of research carried out since the discovery of flexoelectricity. Besides a common macroscopic (continuum) description the microscopic theory of flexoelectricity is also addressed. Electro-optic effects due to or modified by flexoelectricity as well as various (direct and indirect) measurement methods are discussed. Special emphasis is given to the role of flexoelectricity in pattern-forming instabilities. While the main focus of the book lies in flexoelectricity in nematic liquid crystals, peculiarities of other mesophases (bent-core systems, cholesterics, and smectics) are also reviewed. Flexoelectricity has relevance to biological (living) systems and can also offer possibilities for technical applications. The basics of these two interdisciplinary fields are also summarized.
Author: Jerome V. Moloney
Publisher: Springer Science & Business Media
ISBN: 9780387985817
Category : Business & Economics
Languages : en
Pages : 270
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Book Description
Mathematical methods play a significant role in the rapidly growing field of nonlinear optical materials. This volume discusses a number of successful or promising contributions. The overall theme of this volume is twofold: (1) the challenges faced in computing and optimizing nonlinear optical material properties; and (2) the exploitation of these properties in important areas of application. These include the design of optical amplifiers and lasers, as well as novel optical switches. Research topics in this volume include how to exploit the magnetooptic effect, how to work with the nonlinear optical response of materials, how to predict laser-induced breakdown in efficient optical devices, and how to handle electron cloud distortion in femtosecond processes.
