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Akademický článek

Seed layer technique for high quality epitaxial manganite films

Autor: P. Graziosi, A. Gambardella, M. Calbucci, K. O’Shea, D. A. MacLaren, A. Riminucci, I. Bergenti, S. Fugattini, M. Prezioso, N. Homonnay, G. Schmidt, D. Pullini, D. Busquets-Mataix, V. Dediu

Publikováno v: AIP Advances, Vol 6, Iss 8, Pp 085109-085109-9 (2016)

We introduce an innovative approach to the simultaneous control of growth mode and magnetotransport properties of manganite thin films, based on an easy-to-implement film/substrate interface engineering. The deposition of a manganite seed layer and t

Externí odkaz: https://doaj.org/article/2dc1184035924bae843ee52e4fc13115

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Akademický článek

Coherent control of magnetization precession in electrically detected time domain ferromagnetic resonance

Autor: O. Wid, M. Wahler, N. Homonnay, T. Richter, G. Schmidt

Publikováno v: AIP Advances, Vol 5, Iss 11, Pp 117120-117120-8 (2015)

We demonstrate coherent control of time domain ferromagnetic resonance by all electrical excitation and detection. Using two ultrashort magnetic field steps with variable time delay we control the induction decay in yttrium iron garnet (YIG). By sett

Externí odkaz: https://doaj.org/article/f67ccbb7ffe34cd3beb4f138cb02631c

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Resistive Switching and Voltage Induced Modulation of Tunneling Magnetoresistance in Nanosized Perpendicular Organic Spin Valves

Autor: Bodo Fuhrmann, N. Homonnay, Georg Schmidt, Alexander Müller, Robert Göckeritz

Publikováno v: AIP Advances, Vol 6, Iss 4, Pp 045003-045003-7 (2016)

Nanoscale multifunctional perpendicular organic spin valves have been fabricated. The devices based on an La$_{0.7}$Sr$_{0.3}$MnO$_3$/Alq$_3$/Co trilayer show resistive switching of up to 4-5 orders of magnitude and magnetoresistance as high as -70%

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::daf8ce4ae494688be7c14602da20c542
http://arxiv.org/abs/1610.08218

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Advanced colloidal lithography for sub-100 nm lift-off structures

Autor: Hartmut S. Leipner, N. Homonnay, Bodo Fuhrmann, Nadine Geyer

Publikováno v: Vacuum. 86:1232-1234

We report on the fabrication of hexagonally ordered, sub-wavelength hole arrays (SWHA) by colloidal lithography combined with reactive ion etching and a lift-off process, and their characterization with scanning electron microscopy and ellipsometry.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::70ccf5cc76530aa62a1c9e265088e7bf
https://doi.org/10.1016/j.vacuum.2011.04.009

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Voltage-controlled oxide barriers in organic/hybrid spin valves based on tunneling anisotropic magnetoresistance

Autor: M. Grünewald, N. Homonnay, Georg Schmidt, J. Kleinlein

Publikováno v: Physical Review B. 90

A clear interaction between a resistive switching and a magnetoresistance effect is observed in organic semiconductor/ferromagnetic oxide hybrid spin-valve-like structures. The results resolve a longstanding question by clearly locating the origin of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ca49258cdd44c1e1e7fa36f8b919da69
https://doi.org/10.1103/physrevb.90.205208

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Polaron framework to account for transport properties in metallic epitaxial manganite films

Autor: D. Busquets-Mataix, N. Homonnay, Mirko Prezioso, Patrizio Graziosi, Alessandro Gambardella, Georg Schmidt, Alberto Riminucci, Daniele Pullini, Ilaria Bergenti

Publikováno v: RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia
instname
Physical review. B, Condensed matter and materials physics 89 (2014). doi:10.1103/PhysRevB.89.214411
info:cnr-pdr/source/autori:Graziosi, Patrizio; Gambardella, Alessandro; Prezioso, Mirko; Riminucci, Alberto; Bergenti, Ilaria; Homonnay, Nico; Schmidt, Georg Cornelius; Pullini, Daniele; Busquets-Mataix, David/titolo:Polaron framework to account for transport properties in metallic epitaxial manganite films/doi:10.1103%2FPhysRevB.89.214411/rivista:Physical review. B, Condensed matter and materials physics/anno:2014/pagina_da:/pagina_a:/intervallo_pagine:/volume:89

[EN] We propose a model for the consistent interpretation of the transport behavior of manganese perovskites in both the metallic and insulating regimes. The concept of polarons as charge carriers in the metallic ferromagnetic phase of manganites als

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6fe4b3c80905efd70604bb018010aa69
https://hdl.handle.net/10251/62885

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Vertical organic spin valves in perpendicular magnetic fields

Autor: Georg Schmidt, Frank Würthner, M. Grünewald, Robert Göckeritz, N. Homonnay, Laurens W. Molenkamp

Publikováno v: Physical Review B. 88

We report the results of magnetoresistance measurements in vertical organic spin valves with the magnetic field oriented perpendicular to the layer stack. The magnetoresistance measurements were performed after carefully preparing either parallel or

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a48257fb88d6ca9f20975aef7cb35631
https://doi.org/10.1103/physrevb.88.085319

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