نتایج جستجو برای: hall mobility
تعداد نتایج: 163617 فیلتر نتایج به سال:
Crystallization of a-Ge was performed on flexible plastic substrates at temperatures as low as 130 8C. Copper has been primarily used as the seed of crystallization, while an external stress was applied onto the flexible substrate to enhance the crystallization. The substrates used for this study were mainly 0.1 mm thick Polyethylene terephthalate (PET) films, which remain flexible during post ...
Ohmic contact electrodes for four-wire resistance and Hall measurements were fabricated on an individual single-crystal bismuth nanowire encapsulated in a cylindrical quartz template. Focused ion beam processing was utilized to expose the side surfaces of the bismuth nanowire in the template, and carbon and tungsten electrodes were deposited on the bismuth nanowire in situ to achieve electrical...
We study topological indices of Fermionic time-reversal invariant insulators in two dimensions, the regime strong Anderson localization. devise a method to interpolate between certain Fredholm operators arising context these systems. use this technique prove bulk-edge correspondence for mobility-gapped 2D possessing (Fermionic) symmetry (class AII) and provide an alternative route theorem by El...
This paper is a review article covering our work in recent years on PbTe and the alloy semiconductor CdXPbl-,Te. It shows how measurements of the transport and optical properties of these materials support (1) the two valence band model for PbTe in which the principal light mass band is highly non-parabolic and the secondary heavy mass band is parabolic and (2) a value for the Hall-anisotropy f...
In order to study Hall effect in pure and CNT doped YBCO polycrystalline samples, we have measured longitudinal and transverse voltages at the different magnetic field (0-9T) in the vortex state. We found a sign reversal for pure sample near 3T and double sign reversal of the Hall coefficient for CNT doped sample near 3 and 5T. It can be deduced that CNT doping caused strong flux pinning and H...
background: construction work (building houses, roads, workplaces, and repairing and maintaining infrastructures) is a dangerous land-based job. this includes many hazardous tasks and conditions such as working at the following conditions: height, excavation, noise, dust, power tools and equipment. construction work has been increased in developed and underdeveloped countries over the past few ...
We estimate the effect of extreme weather on life expectancy in the US. Using high frequency mortality data, we find that both extreme heat and extreme cold result in immediate increases in mortality. However, the increase in mortality following extreme heat appears entirely driven by temporal displacement, while the increase in mortality following extreme cold is long lasting. The aggregate ef...
The electron mobility is one of the key parameters that characterize the charge-carrier transport properties of materials, as exemplified by the quantum Hall effect as well as high-efficiency thermoelectric and solar energy conversions. For thermoelectric applications, introduction of chemical disorder is an important strategy for reducing the phonon-mediated thermal conduction, but is usually ...
Achieving higher carrier mobility plays a pivotal role for obtaining potentially high thermoelectric performance. In principle, the carrier mobility is governed by the band structure as well as by the carrier scattering mechanism. Here, we demonstrate that by manipulating the carrier scattering mechanism in n-type Mg3Sb2-based materials, a substantial improvement in carrier mobility, and hence ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید