Conventional Hall devices are widely employed to measure magnetic fields produced by millimetre sized (or larger) current-caring conductors or permanent magnets with a standard active area of about (100 μm). Micro-Hall sensors have recently emerged as a powerful and sensitive tool for the investigation of local magnetic field properties of the micro and nanostructures. The conventional Hall eff...

Skomski, Ralph, "Berry phase from a randomly fluctuating magnetic field" (2012). Ralph Skomski Publications. Paper 69. The quantum-mechanical Berry phase due to a randomly fluctuating magnetic field is calculated by exploiting an analogous random-walk problem in polymer physics. The phase depends on the time correlations of the magnetic field, despite the adiabatic nature of the Berry phase. A ...

This article provides a comprehensive review of the current research activities that focus on the ZnO nanostructure materials and their physical property characterizations. It begins with the synthetic methods that have been exploited to grow ZnO nanostructures. A range of remarkable characteristics are then presented, organized into sections describing the mechanical, electrical, optical, magn...

A potentiometric aptasensing assay that couples the DNA nanostructure-modified magnetic beads with a solid-contact polycation-sensitive membrane electrode for the detection of Vibrio alginolyticus is herein described. The DNA nanostructure-modified magnetic beads are used for amplification of the potential response and elimination of the interfering effect from a complex sample matrix. The soli...

We investigate the dynamic nuclear polarization (DNP) caused by hyperfine coupling between nonequilibrium electronic spins and nuclear spins in semiconductor nanostructures. We derive the time and position dependence of the resulting hyperfine and dipolar magnetic fields. In GaAs quantum wells the induced nuclear spin polarization greatly exceeds the polarization of the electronic system that c...

The magnetic response of most natural materials, characterized by permeability, is generally weak. Particularly, in the optical range, weakness effects directly related to asymmetry between electric and charges. Harnessing artificial magnetism started with a pursuit metamaterial design exhibiting properties. first demonstration was given plasmonic nanostructure called split-ring resonators. Eng...

A Stranski–Krastanow (SK)-like growth mode is shown for GaN nanostructures on AlN template layers grown by metalorganic chemical vapor deposition on sapphire substrates. A wide temperature range from 800 to 1100 1C and V/III ratios ranging from 4.5 to 3500 were explored to determine the optimal growth conditions. Silicon was used as an anti-surfactant to enhance the nucleation. Further, an acti...