35 research outputs found
Direct observation by resonant tunneling of the B^+ level in a delta-doped silicon barrier
Full text linkWe observe a resonance in the conductance of silicon tunneling devices with a
delta-doped barrier. The position of the resonance indicates that it arises
from tunneling through the B^+ state of the boron atoms of the delta-layer.
Since the emitter Fermi level in our devices is a field-independent reference
energy, we are able to directly observe the diamagnetic shift of the B^+ level.
This is contrary to the situation in magneto-optical spectroscopy, where the
shift is absorbed in the measured ionization energy.Comment: submitted to PR
Remoção de matéria orgânica, de nutrientes e de coliformes no processo anaeróbio em dois estágios (reator compartimentado seguido de reator UASB) para o tratamento de águas residuárias de suinocultura
Full text linkOptical crop sensor for variable-rate nitrogen fertilization in corn: i - plant nutrition and dry matter production
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Thinking about artworlds in a global flow: Some major disparities in dealing with visual culture
No full textResearch on treatment of printing and dyeing wastewater by hybrid anaerobic baffled reactor
No full textInfestation of improved grasslands by Juncus effusus L. in the catchment of the River Tyne, Northern England: a field survey
No full textLoss of hill activity in isolated chloroplasts is not directly related to free fatty acid release during ageing
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