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Current flowing is studied in magnetic junctions consisting of a ferromagnetic metal (FM), antiferromagnetic conductor (AFM) and a nonmagnetic metal closing the electric circuit. The FM layer with high anisotropy and pinned spins of the…

Materials Science · Physics 2010-11-22 Yu. V. Gulyaev , P. E. Zilberman , E. M. Epshtein

Magnetic torque is used to actuate nano-torsional resonators, which are fabricated by focused-ion-beam milling of permalloy coated silicon nitride membranes. Optical interferometry is used to measure the mechanical response of two torsion…

Mesoscale and Nanoscale Physics · Physics 2010-03-09 J. P. Davis , D. Vick , D. C. Fortin , J. A. J. Burgess , W. K. Hiebert , M. R. Freeman

We use macroscopic holes drilled in a bulk YBCO superconductor to probe its magnetic properties in the volume of the sample. The sample is subjected to an AC magnetic flux with a density ranging from 30mT to 130mT and the flux in the…

In this work, we present a detailed investigation of the magnetic properties of cobalt nanospheres grown on cantilever tips by Focused Electron Beam Induced Deposition (FEBID). The cantilevers are extremely soft and the cobalt nanospheres…

Understanding the multiferroic coupling is one of the key issues in the feld of multiferroics. As shown here theoretically, the ferromagnetic resonance (FMR) renders possible an access to the magnetoelectric coupling coefficient in…

Materials Science · Physics 2013-09-17 A. Sukhov , P. P. Horley , C. -L. Jia , J. Berakdar

The in-plane correlation lengths and magnetic disorder of magnetic domains in a transition metal multilayer have been studied using neutron scattering techniques. A new theoretical framework is presented connecting the observed scattering…

Materials Science · Physics 2014-12-24 Sean Langridge , Joerg Schmalian , C. H. Marrows , D. T. Dekadjevi , B. J. Hickey

The transverse anisotropy constant and the related D\"oring mass density are key parameters of the one-dimensional model to describe the motion of magnetic domain walls. So far, no general framework is available to determine these…

Mesoscale and Nanoscale Physics · Physics 2015-08-12 Felix Büttner , Benjamin Krüger , Stefan Eisebitt , Mathias Kläui

We study the effect of dipolar interactions on a magnetic striped monolayer with a microscopic unit cell of square symmetry, and of size $(N_x\times N_y)$ spins. Even if the aspect ratio $r=N_x/N_y$ is very large, an in-plane shape…

Condensed Matter · Physics 2007-05-23 Paolo Politi , Maria Gloria Pini

Films of oxides doped with transition metals are frequently believed to have magnetic inclusions. Magnetic methods to determine the amount of nanophases and their magnetic characteristics are described. The amount of the sample that is…

We implemented radio frequency-assisted electrostatic force microscopy (RF-EFM) to investigate the electric field response of biaxially strained molybdenum disulfide (MoS2) monolayers (MLs) in the form of mesoscopic bubbles, produced via…

Mn doping of group-IV semiconductors (Si/Ge) is achieved by embedding a thin Mn-film as a {\delta}-doped layer in group-IV matrix. The Mn-layer consists of a dense layer of monoatomic Mn-wires, which are oriented perpendicular to the…

Materials Science · Physics 2017-07-04 K. R. Simov , P. -A. Glans , C. A. Jenkins , M. Liberati , P. Reinke1

A model for single-domain uniaxial ferromagnetic particles with high anisotropy, the Ising model, is studied. Recent experimental observations have been made of the probability that the magnetization has not switched. Here an approach is…

Materials Science · Physics 2009-10-30 M. A. Novotny , M. Kolesik , P. A. Rikvold

Spin wave spectra of perpendicularly magnetized disks with trilayers consisting of a 100 nm permalloy (Py) layer sandwiched by two Cu layers of 30 nm, are measured individually with a Magnetic Resonance Force Microscope (MRFM). It is…

Materials Science · Physics 2015-06-25 G. De Loubens , V. V. Naletov , Olivier Klein , J. Ben Youssef , F. Boust , N. Vukadinovic

The laser-induced precession of magnetization in (Ga,Mn)As samples with different magnetic anisotropy was studied by the time-resolved magneto-optical method. We observed that the dependence of the precession amplitude on the external…

Materials Science · Physics 2012-12-06 N. Tesarova , E. Rozkotova , H. Reichlova , P. Maly , V. Novak , M. Cukr , T. Jungwirth , P. Nemec

Individual Fe atoms on a Cu2N/Cu(100) surface exhibit strong magnetic anisotropy due to the crystal field. Using atom manipulation in a low-temperature STM we demonstrate that the anisotropy of one Fe atom is significantly influenced by…

Mesoscale and Nanoscale Physics · Physics 2014-03-26 B. Bryant , A. Spinelli , J. J. T. Wagenaar , M. Gerrits , A. F. Otte

We present an all-optical method to measure and compensate for residual magnetic fields present in a cloud of ultracold atoms trapped in an optical dipole trap. Our approach leverages the increased loss from the trapped atomic sample…

Atomic Physics · Physics 2024-04-18 Suthep Pomjaksilp , Sven Schmidt , Aaron Thielmann , Thomas Niederprüm , Herwig Ott

The interlayer magnetoresistance of a quasi-two-dimensional layered metal with a d-wave pseudogap is calculated semiclassically. An expression for the interlayer resistivity as a function of the strength and direction of the magnetic field,…

Strongly Correlated Electrons · Physics 2009-06-08 M. F. Smith , Ross H. McKenzie

Magnetically levitated superconducting microparticles offer a promising path to quantum experiments with picogram to microgram objects. In this work, we levitate a 700ng $\sim 10^{17}$amu superconducting microsphere in a magnetic chip trap…

The magnetic properties of densely packed magnetic nanoparticles (MNP) assemblies are investigated from Monte Carlo simulations. The case of iron oxide nanoparticles is considered as a typical example of MNP. The main focus is put on…

Materials Science · Physics 2013-03-11 Vincent Russier , Caroline de Montferrand , Yoann Lalatonne , Laurence Motte

Atomic Force Microscopy (AFM) allows to probe matter at atomic scale by measuring the perturbation of a nanomechanical oscillator induced by near-field interaction forces. The quest to improve sensitivity and resolution of AFM has forced…

Mesoscale and Nanoscale Physics · Physics 2017-05-25 Alessandro Siria , Antoine Niguès