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Ballistic electron transport is a key requirement for existence of a topological phase transition in proximitized InSb nanowires. However, measurements of quantized conductance as direct evidence of ballistic transport have so far been…

Multifunctional three-dimensional (3-D) nano-architectures, integrating all device components within tens of nanometers, offer great promise for next generation electrical energy storage applications, but have remained challenging to…

Chemical Physics · Physics 2017-06-08 Jörg G. Werner , Gabriel G. Rodríguez-Calero , Héctor D. Abruña , Ulrich Wiesner

Bulk samples of carbon multilayer nanotubes with the structure of nested cones (fishbone structure) suitable for transport measurements, were prepared by compressing under high pressure (~25 kbar) a nanotube precursor synthesized through…

Reduced dimensionality and strong electronic correlations, which are among the most important ingredients for cupratelike high-Tc superconductivity, characterize also the physics of nickelate-based heterostructures. Starting from the…

Strongly Correlated Electrons · Physics 2011-11-07 P. Hansmann , A. Toschi , Xiaoping Yang , O. K. Andersen , K. Held

High-density magnetic memories are key components in spintronics, quantum computing, and energy-efficient electronics. Reduced dimensionality and magnetic domain stability at the nanoscale are essential for the miniaturization of magnetic…

Crystalline nanoporous molecular networks are assembled on the Ag(111) surface, where the pores confine electrons originating from the surface state of the metal. Depending on the pore sizes and their coupling, an antibonding level is…

Plasmonic nanopores are extensively investigated as single molecules detectors. The main limitations in plasmonic nanopore technology are the too fast translocation velocity of the molecule through the pore and the consequent very short…

Applied Physics · Physics 2021-05-12 Nicolò Maccaferri , Paolo Vavassori , Denis Garoli

Magnetic domain memory (MDM) is the ability exhibited by certain magnetic materials to reproduce the exact same nanoscale magnetic domain pattern, even after it has been completely erased by an external magnetic field. In this chapter, we…

Mesoscale and Nanoscale Physics · Physics 2020-07-13 Karine Chesnel

Herein, some magnetic nanoparticles (MNP)/clay/polymer nanocomposites have been prepared, whose saturation magnetization is higher than that of pure oleic acid coated MNP component. The existence of unique 'nano-network' structure and tight…

Materials Science · Physics 2012-06-14 Yang Liu , Makoto Takafuji , Hirotaka Ihara , Takeshi Wakiya

We investigate electronic structures of Al quantum wires, both unsupported and supported on the (100) NaCl surface, using the density-functional theory. We confirm that unsupported nanowires, constrained to be linear, show magnetization…

Materials Science · Physics 2009-11-07 A. Ayuela , H. Räbiger , M. J. Puska , R. M. Nieminen

The demand for low-dissipation nanoscale memory devices is as strong as ever. As Moore's Law is staggering, and the demand for a low-power-consuming supercomputer is high, the goal of making information processing circuits out of…

Superconductivity · Physics 2017-07-18 Andrew Murphy , Dmitri Averin , Alexey Bezryadin

The magnetic anisotropy of low-dimensional Mott systems exhibits unexpected magnetotransport behavior useful for spin-based quantum electronics. Yet, the anisotropy of natural materials is inherently determined by the crystal structure,…

In the frame of the 20th Anniversary of the Journal of Nanoparticle Research (JNR), our aim is to start from the historical context twenty, years ago and to give some recent results and perspectives concerning nanomagnets prepared from…

Magnetic dissipative droplets are localized, strongly nonlinear dynamical modes excited in nano-contact spin valves with perpendicular magnetic anisotropy. These modes find potential application in nanoscale structures for magnetic storage…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Ezio Iacocca , Randy K. Dumas , Lake Bookman , Majid Mohseni , Sunjae Chung , Mark A. Hoefer , Johan Åkerman

Spin-orbit interactions are known to have drastic effects on the band structure of heavy-element-based materials. Celebrated examples are the recently identified 3D and 2D topological insulators. In those systems transport takes place at…

We use soft x-ray vector-ptychographic tomography to determine the three-dimensional magnetization field in superparamagnetic nanoparticles self-assembled at the liquid-liquid interface and reveal the magnetic order induced by layered…

The progress of magnetization reversal of weakly packed ferromagnetic Ni80Fe20 nanowire arrays of different diameters (40, 50, 70 and 100 nm) electrodeposited in polycarbonate membranes was studied by magnetic force microscopy (MFM). For…

Materials Science · Physics 2014-07-30 M. R. Tabasum , F. Zighem , J. De La Torre Medina , L. Piraux , B. Nysten

Spin-related effects in thermoelectricity can be used to design more efficient refrigerators and offer novel promising applications for the harvesting of thermal energy. The key challenge is to design structural and compositional magnetic…

Mesoscale and Nanoscale Physics · Physics 2022-07-08 Flavio Abreu Araujo , Tristan da Câmara Santa Clara Gomes , Luc Piraux

The study of strong electron correlations in transition metal oxides with modern microscopy and diffraction techniques unveiled a fascinating world of nanosize textures in the spin, charge, and crystal structure. Examples range from high…

Strongly Correlated Electrons · Physics 2007-05-23 G. Papavassiliou , M. Pissas , M. Belesi , M. Fardis , D. Stamopoulos , A. Kontos , M. Hennion , J. Dolinsek , J. P. Ansermet , C. Dimitropoulos

Electrical conductance through InAs nanowires is relevant for electronic applications as well as for fundamental quantum experiments. Here we employ nominally undoped, slightly tapered InAs nanowires to study the diameter dependence of…

Mesoscale and Nanoscale Physics · Physics 2009-12-23 Marc Scheffler , Stevan Nadj-Perge , Leo P. Kouwenhoven , Magnus T. Borgström , Erik P. A. M. Bakkers