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Magnetic configurations in heterostructures are often difficult to probe when the magnetic entities are buried inside. In this study we have captured magnetic and magnetoresistance "fingerprints" of Co nanodiscs embedded in Co/Cu…

材料科学 · 物理学 2009-01-21 Jared Wong , Peter Greene , Randy K. Dumas , Kai Liu

We present a study on the static magnetic properties of individual $\text{GaAs}$-$\text{Fe}_{\text{33}}\text{Co}_{\text{67}}$ core-shell nanorods. X-ray Magnetic Circular Dichroism combined with Photoemission Electron Microscopy (XMCD-PEEM)…

The yet virtually unexplored class of soft colloidal rods with small aspect ratio is investigated and shown to exhibit a very rich phase and dynamic behavior, spanning from liquid to nearly melt state. Instead of nematic order, these short…

The elaboration of multimodal nanoparticles stimulates tremendous interest owing to their numerous potentialities in many applicative fields like optoelectronics, photonics and especially bioimaging. The concomitant association of various…

材料科学 · 物理学 2016-01-05 Jerome Fresnais , Elena Ishow , Olivier Sandre , Jean-Francois Berret

Tunable nanopores in elastomeric membranes have been used to study the dependence of ionic current blockade rate on the concentration and electrophoretic mobility of particles in aqueous suspensions. A range of nanoparticle sizes, materials…

软凝聚态物质 · 物理学 2010-05-25 G R Willmott , R Vogel , S S C Yu , L G Groenewegen , G S Roberts , D Kozak , W Anderson , M Trau

Ferrofluids are strongly paramagnetic liquids. We study the behavior of ferrofluid droplets confined between two parallel plates with a weak applied field parallel to the plates. The droplets elongate under the applied field to reduce their…

软凝聚态物质 · 物理学 2009-10-31 S. Banerjee , M. Fasnacht , S. Garoff , M. Widom

Understanding the motion of particles on an air-liquid interface can impact a wide range of scientific fields and applications. Diamagnetic particles floating on an air-paramagnetic-liquid interface are previously known to have a repulsive…

应用物理 · 物理学 2021-09-10 Zoran Cenev , Alois Würger , Quan Zhou

Strongly-interacting nanomagnetic arrays are crucial across an ever-growing suite of technologies. Spanning neuromorphic computing, control over superconducting vortices and reconfigurable magnonics, the utility and appeal of these arrays…

介观与纳米尺度物理 · 物理学 2020-12-18 J. C. Gartside , S. G. Jung , S. Y. Yoo , D. M. Arroo , A. Vanstone , T. Dion , K. D. Stenning , W. R. Branford

We consider strongly stratified forced turbulence in a plane-parallel layer with helicity and corresponding large-scale dynamo action in the lower part and non-helical turbulence in the upper. The magnetic field is found to develop strongly…

太阳与恒星天体物理 · 物理学 2016-05-23 Sarah Jabbari , Axel Brandenburg , Dhrubaditya Mitra , Nathan Kleeorin , Igor Rogachevskii

Starting from a two-dimensional theory of magneto-elasticity for fiber-reinforced magnetic elastomers we carry out a rigorous dimension reduction to derive a rod model that describes a thin magneto-elastic strip undergoing planar…

软凝聚态物质 · 物理学 2021-08-17 Jacopo Ciambella , Martin Kružík , Giuseppe Tomassetti

We study the orientation statistics of spheroidal, axisymmetric microswimmers, with shapes ranging from disks to rods, swimming in chaotic, moderately turbulent flows. Numerical simulations show that rod-like active particles preferentially…

流体动力学 · 物理学 2019-10-02 M. Borgnino , K. Gustavsson , F. De Lillo , G. Boffetta , M. Cencini , B. Mehlig

Studies of nanoparticle-based optical matter have only considered spherical constituents. Yet nanoparticles with other shapes are expected to have different local electromagnetic field distributions and therefore interactions with neighbors…

介观与纳米尺度物理 · 物理学 2018-08-01 Delphine Coursault , Nishant Sule , John Parker , Ying Bao , Norbert F. Scherer

We report on the structural properties of mixed aggregates made from rare-earth inorganic nanoparticles (radius 20 Angstroms) and polyelectrolyte-neutral block copolymers in aqueous solutions. Using scattering experiments and Monte Carlo…

软凝聚态物质 · 物理学 2021-09-27 K. Yokota , M. Morvan , J. -F. Berret , J. Oberdisse

Applying the analytical closed-form solutions of the 'quasi-static' potential distribution around two conjoined resonant half-cylinders with different permittivities, reported in the first part of our manuscript, here we interpret these…

材料科学 · 物理学 2009-11-13 Andrea Alu , Alessandro Salandrino , Nader Engheta

Solid-state programmable metallization cells have attracted considerable attention as memristive elements for Redox-based Resistive Random Access Memory (ReRAM) for low-power and low-voltage applications. In principle, liquid-state…

化学物理 · 物理学 2016-08-26 Ji-Hyung Han , Ramachandran Muralidhar , Rainer Waser , Martin Z. Bazant

This work is devoted to experimental study of influence of superconductivity (S) on ferromagnetism (FM) (inverse proximity effects) with the help of Polarized Neutron Reflectivity. Combining meausurements of specular and diffuse intensities…

超导电性 · 物理学 2008-01-28 Yu. N. Khaidukov , Yu. V. Nikitenko , V. L. Aksenov

Large scale molecular dynamics simulations are used to investigate the structural and dynamical modifications of supercooled water when confined inside an hydrophilic nanopore. We then investigate the evolution of the auto-organization of…

无序系统与神经网络 · 物理学 2015-06-25 Victor Teboul

Nanoconfined water plays a key role in nanofluidics, electrochemistry, and catalysis, yet its reactivity remains a matter of debate. Prior studies have reported both enhanced and suppressed water self-dissociation relative to the bulk, but…

We present numerical simulations of reorienting oblique shocks that form in the collision layer between magnetized colliding flows. Reorientation aligns parsec-scale post-shock filaments normal to the background magnetic field. We find that…

星系天体物理 · 物理学 2017-07-26 Erica L. Fogerty , Jonathan Carroll-Nellenback , Adam Frank , Fabian Heitsch , Andy Pon

We deposit droplets of nanorods dispersed in solvents on substrate surfaces and let the solvent evaporate. We find that strong contact line pinning leads to dense nanorod deposition inside coffee stain fringes, where we observe large-scale…