A note on the e–a histogram Kirschenmann, T.H.; Damien, P.; Walker, S.G.
Statistics & probability letters,
August 2015, 2015-08-00, Letnik:
103
Journal Article
Recenzirano
The e–a histogram dominates, under square error loss, a fixed bin width histogram when both are assigned the same number of bins. That is, the fixed bin width histogram is inadmissible and the ...dominating alternative is the e–a histogram.
Spin excitations from a partially populated composite fermion level are studied above and below $\nu=1/3$. In the range $2/7<\nu<2/5$ the experiments uncover significant departures from the ...non-interacting composite fermion picture that demonstrate the increasing impact of interactions as quasiparticle Landau levels are filled. The observed onset of a transition from free to interacting composite fermions could be linked to condensation into the higher order states suggested by transport experiments and numerical evaluations performed in the same filling factor range.
Spin excitations from a partially populated composite fermion level are studied above and below nu=1/3. In the range 2/7<nu<2/5, the experiments uncover significant departures from the noninteracting ...composite fermion picture that demonstrate the increasing impact of interactions as quasiparticle Landau levels are filled. The observed onset of a transition from free to interacting composite fermions could be linked to condensation into the higher order states suggested by transport experiments and numerical evaluations performed in the same filling factor range.
We report inelastic light scattering experiments in the fractional quantum Hall regime at filling factors $\nu\lesssim1/3$. A spin mode is observed below the Zeeman energy. The filling factor ...dependence of the mode energy is consistent with its assignment to spin flip excitations of composite fermions with four attached flux quanta ($\phi$=4). Our findings reveal a composite fermion Landau level structure in the $\phi$=4 sequence.
Physica E 34, 144 (2006) We report inelastic light scattering experiments in the fractional quantum
Hall regime at filling factors $\nu\lesssim1/3$. A spin mode is observed below
the Zeeman energy. ...The filling factor dependence of the mode energy is
consistent with its assignment to spin flip excitations of composite fermions
with four attached flux quanta ($\phi$=4). Our findings reveal a composite
fermion Landau level structure in the $\phi$=4 sequence.
Phys. Rev. Lett. 97, 036804 (2006) Spin excitations from a partially populated composite fermion level are
studied above and below $\nu=1/3$. In the range $2/7<\nu<2/5$ the experiments
uncover ...significant departures from the non-interacting composite fermion
picture that demonstrate the increasing impact of interactions as quasiparticle
Landau levels are filled. The observed onset of a transition from free to
interacting composite fermions could be linked to condensation into the higher
order states suggested by transport experiments and numerical evaluations
performed in the same filling factor range.
We report inelastic light scattering experiments in the fractional quantum Hall regime at filling factors \(\nu\lesssim1/3\). A spin mode is observed below the Zeeman energy. The filling factor ...dependence of the mode energy is consistent with its assignment to spin flip excitations of composite fermions with four attached flux quanta (\(\phi\)=4). Our findings reveal a composite fermion Landau level structure in the \(\phi\)=4 sequence.
Spin excitations from a partially populated composite fermion level are studied above and below \(\nu=1/3\). In the range \(2/7<\nu<2/5\) the experiments uncover significant departures from the ...non-interacting composite fermion picture that demonstrate the increasing impact of interactions as quasiparticle Landau levels are filled. The observed onset of a transition from free to interacting composite fermions could be linked to condensation into the higher order states suggested by transport experiments and numerical evaluations performed in the same filling factor range.
Central focus of the MPMIB project – funded via the Academy of Finland’s RADDESS 2018–2021 programme – has been research towards a next-generation radiation detection system operating in a ...photon-counting (PC) multispectral mode: The extraction of energy spectrum per detector pixel data will lead to better efficacy in medical imaging with ionizing radiation. Therefore, it can be an important asset for diagnostic imaging and radiotherapy, enabling better diagnostic outcome with lower radiation dose as well as more versatile characterization of the radiation beam, leading for example to more accurate patient dosimetry.
We present our approach of fabricating direct-conversion detectors based on cadmium telluride (CdTe) semiconductor material hybridized with PC mode capable application-specific integrated circuits (ASICs), and will give a review on our achievements, challenges and lessons learned. The CdTe crystals were processed at Micronova, Finland’s national research infrastructure for micro- and nanotechnology, employing techniques such as surface passivation via atomic layer deposition, and flip chip bonding of processed sensors to ASIC. Although CdTe has excellent photon radiation absorption properties, it is a brittle material that can include large concentrations of defects. We will therefore also emphasize our quality assessment of CdTe crystals and processed detectors, and present experimental data obtained with prototype detectors in X-ray and Co-60 beams at a standards laboratory.
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