English
Related papers

Related papers: Superparamagnetism in Nanocrystalline Copper Ferri…

200 papers

The high frequency magnetic permeability of nanocomposite film consisting of the single-domain spherical ferromagnetic particles in the dielectric matrix is studied. The permeability is assumed to be determined by rotation of the…

Other Condensed Matter · Physics 2009-11-10 N. A. Buznikov , I. T. Iakubov , A. L. Rakhmanov , A. O. Sboychakov

Occurrence of room temperature ferromagnetism is demonstrated in pulsed laser deposited thin films of Sn1-xCoxO2-d (x<0.3). Interestingly, films of Sn0.95Co0.05O2-d grown on R-plane sapphire not only exhibit ferromagnetism with a Curie…

It was predicted long ago that ultra-thin metallic films must exhibit unusual optical properties for radiation frequencies from rf to infrared domain. A film would remain highly reflective even when it is orders of magnitude thinner than a…

Optics · Physics 2018-06-19 Alexander E. Kaplan

The existence of semiconductors exhibiting long-range ferromagnetic ordering at room temperature still is controversial. One particularly important issue is the presence of secondary magnetic phases such as clusters, segregations, etc...…

Defect induced magnetism is reported in undoped aluminium nitride thin films deposited using reactive ion beam sputtering of aluminium in nitrogen plasma. The films have been deposited on silicon substrate at different temperatures.…

Strongly Correlated Electrons · Physics 2017-06-15 Shilpam Sharma , E. P. Amaladass , Awadhesh Mani

With purpose to investigate influence of magnetically non-active metal layers on the Faraday effect in multilayer Ferromagnetic/Normal metal films, dependences of the Faraday rotation angles of the light polarization plane on magnetic field…

A surface magnetoelectric effect is revealed by density-functional calculations that are applied to ferromagnetic Fe(001), Ni(001) and Co(0001) films in the presence of external electric field. The effect originates from spin-dependent…

Nanocrystalline FeCuNbSiB thin films were fabricated through magnetron sputtering followed by heat treatment, resulting in samples characterized by low coercivity and high effective magnetization. Comprehensive microstructural analysis,…

Materials Science · Physics 2024-01-30 J. M. Alves , D. E. Gonzalez-Chavez , N. R. Checca , B. G. Silva , R. L. Sommer

A modeling approach, based on an analytical solution of the semiclassical multi-subband Boltzmann transport equation, is presented to study resistivity scaling in metallic thin films and nanowires due to grain boundary and surface roughness…

Mesoscale and Nanoscale Physics · Physics 2017-01-26 Kristof Moors , Bart Sorée , Wim Magnus

Inertial magnetization dynamics have been predicted at ultrahigh speeds, or frequencies approaching the energy relaxation scale of electrons, in ferromagnetic metals. Here we identify inertial terms to magnetization dynamics in thin…

Materials Science · Physics 2016-01-26 Yi Li , Anne-Laure Barra , Stephane Auffret , Ursula Ebels , William E. Bailey

We present magnetoresistance (MR) measurements performed on quench condensed granular Ni thin films which are on the verge of electric continuity. In these systems the electric conductivity is believed to be governed by the resistance…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 A. Cohen , A. Frydman , R. Berkovits

We report on magnetron deposition of thin superconducting rhenium films on sapphire substrates. During the deposition, substrates were held at ambient temperature. Critical temperature of the films is Tc~3.6 K. Films have polycrystalline…

Superconductivity · Physics 2024-04-30 Serafim Teknowijoyo , Armen Gulian

First principles calculations of the magnetic properties and the magneto-optical Kerr effect (MOKE) of iron thin films epitaxially grown on the [001] surface of paramagnetic metals: copper, silver, gold, palladium, and platinum are…

Condensed Matter · Physics 2016-08-31 A. Debernardi , I. Galanakis , M. Alouani , H. Dreysse

Amorphous sputtered Co-based thin films are widely used as soft magnetic materials in applications such as sensors, inductors and magnetic flux concentrators. The magnetic properties of these films can be controlled by deposition parameters…

Materials Science · Physics 2025-05-29 Indujan Sivanesarajaha , Leon Abelmann , Uwe Hartmann

The magnetization of thin films of cobalt ferrite frequently falls far below the bulk value of 455 kAm-1, which corresponds to an inverse cation distribution in the spinel structure with a significant orbital moment of about 0.6 muB that is…

Materials Science · Physics 2018-01-03 F. Eskandari , S. B. Porter , M. Venkatesan , P. Kameli , K. Rode , J. M. D. Coey

Due to their large electric conductivity, stand-alone metallic films are highly reflective at microwave frequencies. For this reason, it is nearly impossible to observe Faraday rotation in ferromagnetic metal layers, even in films just tens…

Thin films grown by pulsed-laser deposition from targets of Sn0.95Fe0.05O2 are transparent ferromagnets with Curie temperature and spontaneous magnetization of 610 K and 2.2 Am2kg-1, respectively. The 57Fe Mossbauer spectra show the iron is…

Condensed Matter · Physics 2009-11-10 J. M. D. Coey , A. P. Douvalis , C. B. Fitzgerald , M. Venkatesan

We have identified ferromagnetic- and superconducting-like magnetization hysteresis loops in highly oriented pyrolytic graphite samples below and above room temperature. We also found that both behaviors are very sensitive to…

Strongly Correlated Electrons · Physics 2007-05-23 Y. Kopelevich , P. Esquinazi , J. H. S. Torres , S. Moehlecke

We have investigated the magnetic properties of (Ga,Mn)As thin films with Mn concentration between 1 and 9%. Ferromagnetic transition temperatures TC of up to 173K are observed. The results are compared to the predictions of the Zener…

Strongly Correlated Electrons · Physics 2009-11-10 K. Y. Wang , R. P. Campion , K. W. Edmonds , M. Sawicki , T. Dietl , C. T. Foxon , B. L. Gallagher

Ferromagnetic substrate influences the electromagnetic response of a type-II superconducting film to the applied magnetic field. We present a two-dimensional integrodifferential model for the magnetization of a flat…

Superconductivity · Physics 2024-02-12 Leonid Prigozhin , Vladimir Sokolovsky