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Magnetic properties of quasi one-dimensional vanadium-benzene nanowires (VBNW) are investigated theoretically with the absorption of gas molecules-NO and NO2. With the increase adsorption of NO on VBNW, the phase transition from half metal…

Materials Science · Physics 2017-07-25 Min Wang , Yan Zhou , Sui Kong Hark , Xi Zhu

We examine the possibility of using graphene nanoribbons (GNRs) with directly substituted chromium atoms as spintronic device. Using density functional theory, we simulate a voltage bias across a constructed GNR in a device setup, where a…

We propose a review of the current knowledge about the synthesis, magnetic properties and applications of magnetic cylindrical nanowires and nanotubes. By "nano" we consider diameters reasonably smaller than a micrometer. At this scale,…

Mesoscale and Nanoscale Physics · Physics 2018-12-19 Michal Stano , Olivier Fruchart

Since the invention of the atomic force microscope (AFM) in 1986, there has been a drive to apply this scanning probe technique or a form of this technique to various disciplines in nanoscale science. Magnetic force microscopy (MFM) is a…

Instrumentation and Detectors · Physics 2017-04-28 Gustavo Cordova , Brenda Yasie Lee , Zoya Leonenko

A topological modulation of magnetic thin films can induce a magnetic anisotropy of magnetostatic origin. In this letter, we report on the magnetic properties of NiFe layers deposited on wavy shaped Si substrates. Without any modulation,…

Materials Science · Physics 2009-01-20 J. Briones , F. Montaigne , G. Lengaigne , D. Lacour , M. Hehn

Magnetic force microscopy (MFM) is long established as a powerful tool for probing the local manifestation of magnetic nanostructures across a range of temperatures and applied stimuli. A major drawback of the technique, however, is that…

Instrumentation and Detectors · Physics 2023-08-21 Jori F. Schmidt , Lukas M. Eng , Samuel D. Seddon

To investigate structure-property correlations, high-coercivity MnxGa nanoparticles were synthesized by the method of sequential deposition of Ga and Mn fluxes using molecular beam epitaxy. Spontaneous nanostructuring was assisted by the…

Materials Science · Physics 2014-02-21 Michelle E. Jamer , Badih A. Assaf , Steven P. Bennett , Laura H. Lewis , Don Heiman

We show how a scanning probe microscope (SPM) can be used to image electron flow through InAs nanowires, elucidating the physics of nanowire devices on a local scale. A charged SPM tip is used as a movable gate. Images of nanowire…

Single-wall carbon nanotube (SWNT) nanofibrils were assembled onto a variety of conductive scanning probes including atomic force microscope (AFM) tips and scanning tunnelling microscope (STM) needles using positive dielectrophoresis (DEP).…

Materials Science · Physics 2011-06-21 Haoyan Wei , Anna Craig , Bryan D Huey , Fotios Papadimitrakopoulos , Harris Marcus

We exploit the intrinsic structural instability of the Fe70Pd30 magnetic shape memory alloy to obtain functional epitaxial films exhibiting a self-organized nanostructure. We demonstrate that coherent epitaxial straining by 54% is possible.…

Mesoscale and Nanoscale Physics · Physics 2012-05-30 Sandra Kauffmann-Weiss , Markus E. Gruner , Anja Backen , Ludwig Schultz , Peter Entel , Sebastian Fähler

X-ray diffraction, transmission electron microscopy, and magnetization measurements are employed to study the structural and magnetic properties of Mn-rich (Mn,Ga)As nanocrystals embedded in GaAs. These nanocomposites are obtained by…

We present a detailed modeling and characterization of our scalable microwave nanoprobe, which is a micro-fabricated cantilever-based scanning microwave probe with separated excitation and sensing electrodes. Using finite-element analysis,…

Other Condensed Matter · Physics 2008-09-24 K. Lai , W. Kundhikanjana , M. Kelly , Z. X. Shen

We have synthesized nanoscale magnetic compasses with high yield. These ferromagnetic iron carbide nano-particles, which are encapsulated in a pair of parallel carbon needles, change their direction in response to an external magnetic…

Mesoscale and Nanoscale Physics · Physics 2017-10-11 Hidetsugu Shiozawa , Desai Zhang , Michael Eisterer , Paola Ayala , Thomas Pichler , Martha R. McCartney , David J. Smith

Most conventional magnetic materials used in the electronic devices are ferrites, which are composed of micrometer-size grains. But ferrites have small saturation magnetization, therefore the performance at GHz frequencies is rather poor.…

Materials Science · Physics 2015-03-19 J. V. I. Timonen , R. H. A. Ras , O. Ikkala , M. Oksanen , E. Seppala , K. Chalapat , J. Li , G. S. Paraoanu

A novel method for controlling nanowire magnetic properties and growth from filling time profile is presented. The wires are grown with an electrodeposition method ("Template synthesis") with a wide selection of pore diameters. We show that…

Materials Science · Physics 2016-09-08 A. Ghaddar , F. Gloaguen , J. Gieraltowski

We reported a systematic study of spin-orbit torque biased magnetic sensors based on NiFe/Pt bilayers through both macro-spin modeling and experiments. The simulation results show that it is possible to achieve a linear sensor with a…

Mesoscale and Nanoscale Physics · Physics 2017-12-13 Yanjun Xu , Yumeng Yang , Ziyan Luo , Baoxi Xu , Yihong Wu

Detection of vector magnetic fields at nanoscale dimensions is critical in applications ranging from basic material science, to medical diagnostic. Meanwhile, an all-electric operation is of great significance for achieving a simple and…

One of the critical milestones in the intensive pursuit of quantitative nanoscale magnetic imaging tools is achieving the level of sensitivity required for detecting the field generated by the spin magnetic moment {\mu}B of a single…

Planar magnetic nanoelements, either single- or multi-layered, are exploited in a variety of current or forthcoming spintronic and/or ICT devices, such as read heads, magnetic memory cells, spin-torque nano-oscillators, nanomagnetic logic…

Applied Physics · Physics 2019-08-30 Giovanni Carlotti

Correlated-electron systems support a wealth of magnetic excitations, ranging from conventional spin waves to exotic fractional excitations in low-dimensional or geometrically-frustrated spin systems. Probing such excitations on nanometre…

Mesoscale and Nanoscale Physics · Physics 2015-08-12 Toeno van der Sar , Francesco Casola , Ronald Walsworth , Amir Yacoby
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