A new low-cost, high throughput method was developed for fabricating large area quantized magnetic disks ~QMDs! using nanoimprint lithography ~NIL!, electroplating, and chemical mechanical polishing. Perpendicular QMDs with a density of 18 Gbit/in. and good uniformity over an area of 4 cm34 cm ~total 45 Gbit! have been achieved, as well as longitudinal QMDs of 30 Gbit/in. The NIL molds for the ...

Since the invention of scanning tunnelling microscopy (STM) [1] and atomic force microscopy (AFM) [2], a new class of local probe microscopes has entered the laboratories around the world. Scanning probe microscopy (SPM) uses probing tips to map properties, such as topography, local adhesive forces, elasticity, friction or magnetic properties. In the emerging fields of nanoscience and nanotechn...

Control of the motion of domain walls in magnetic nanowires is at the heart of various recently proposed three-dimensional (3D) memory devices. However, fabricating 3D nanostructures is extremely complicated using standard lithography techniques. Here we show that highly pure 3D magnetic nanowires with aspect-ratios of ~100 can be grown using focused electron-beam-induced-deposition. By combini...

A uniform array of single-grain Au nanodots, as small as 5-8 nm, can be formed on silicon using e-beam lithography. The as-fabricated nanodots are amorphous, and thermal annealing converts them to pure Au single crystals covered with a thin SiO(2) layer. These findings are based on physical measurements, such as atomic force microscopy (AFM), atomic-resolution scanning transmission electron mic...

This article presents an investigation of antiadhesive coatings for nanoimprinting lithography. To get the optimum parameters of the coating process, a surface-contact angle goniometer and an atomic force microscope were used for detailed comparison of the coated surfaces produced with different process parameters. With the antiadhesive coating, the contact angle of deionized water on the mold ...

Submicron particles such as latex spheres and viruses can be manipulated and characterized using dielectrophoresis. By the use of appropriate microelectrode arrays, particles can be trapped or moved between regions of high or low electric fields. The magnitude and direction of the dielectrophoretic force on the particle depends on its dielectric properties, so that a heterogeneous mixture of pa...

We have grown high-quality magnetite micrometric islands on ruthenium stripes sapphire through a combination of magnetron sputtering (Ru film), high-temperature molecular beam epitaxy (oxide islands), and optical lithography. The samples been characterized by atomic force microscopy, Raman spectroscopy, X-ray absorption magnetic circular dichroism in photoemission microscope. domains the can be...

Fabrication of nanostructured metasurfaces poses a significant technological and fundamental challenge. Despite developing novel systems that support reversible elongation distortion, their nanoscale patterning control optical properties remain an open problem. Herein we report the atomic force microscope lithography (AFML) application for single-walled carbon nanotube films associated reflecti...

Electronic confinement at nanoscale dimensions remains a central means of science and technology. We demonstrate nanoscale lateral confinement of a quasi-two-dimensional electron gas at a lanthanum aluminate-strontium titanate interface. Control of this confinement using an atomic force microscope lithography technique enabled us to create tunnel junctions and field-effect transistors with char...

Nano-graphene ribbons are promising in many electronic applications, as their bandgaps can be opened by reducing the widths, e.g. below 20 nm. However, a high-throughput method to pattern large-area nano-graphene features is still not available. Here we report a fabrication method of sub-20 nm ribbons on graphite stamps by nanoimprint lithography and a transfer-printing of the graphene ribbons ...