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The microscopic electric environment surrounding a spin defect in a wide-bandgap semiconductor plays a determining role in the spin coherence and charge stability of a given qubit and has an equally important role in defining the electrical…

Mesoscale and Nanoscale Physics · Physics 2024-10-28 R. M. Goldblatt , N. Dontschuk , D. J. McCloskey , A. M. Martin , A. A. Wood

Charge traps in the semiconductor bulk (bulk charge traps) make it difficult to predict the electric field within wide-bandgap semiconductors. The issue is the daunting number of bulk charge-trap candidates which means the treatment of bulk…

The NV$^-$ color center in diamond has been extensively investigated for quantum sensing, computation, and communication applications. Nonetheless, charge-state decay from the NV$^-$ to its neutral counterpart the NV$^0$ detrimentally…

Materials Science · Physics 2023-12-22 Rodrick Kuate Defo , Alejandro W. Rodriguez , Steven L. Richardson

We propose a theory of optically-induced currents in dielectrics and wide-gap semiconductors exposed to a non-resonant ultrashort laser pulse with a stabilized carrier-envelope phase. In order to describe strong-field electron dynamics,…

Materials Science · Physics 2016-08-05 Stanislav Yu. Kruchinin , Michael Korbman , Vladislav S. Yakovlev

Undesired unintentional doping and doping limits in semiconductors are typically caused by compensating defects with low formation energies. Since the formation energy of a charged defect depends linearly on the Fermi level, doping limits…

Materials Science · Physics 2017-03-13 Kirstin Alberi , Michael A. Scarpulla

Charge control of color centers in semiconductors promises opportunities for novel forms of sensing and quantum information processing. Here, we articulate confocal fluorescence microscopy and magnetic resonance protocols to induce and…

The application of color centers in wide-bandgap semiconductors to nanoscale sensing and quantum information processing largely rests on our knowledge of the surrounding crystalline lattice, often obscured by the countless classes of point…

Materials Science · Physics 2022-01-17 Artur Lozovoi , Gyorgy Vizkelethy , Edward Bielejec , Carlos A. Meriles

Carrier conduction in wide bandgap semiconductors (WBS) often exhibits velocity saturation at the high-electric field regime. How such effect influences the transition between contact-limited and space-charge-limited current in a…

Applied Physics · Physics 2023-08-03 Kok Wai Lee , Yee Sin Ang

Band bending is a central concept in solid-state physics that arises from local variations in charge distribution especially near semiconductor interfaces and surfaces. Its precision measurement is vital in a variety of contexts from the…

Control over the charge states of color centers in solids is necessary in order to fully utilize them in quantum technologies. However, the microscopic charge dynamics of deep defects in wide-bandgap semiconductors are complex, and much…

Mesoscale and Nanoscale Physics · Physics 2021-09-08 A. Gardill , I. Kemeny , M. C. Cambria , Y. Li , H. T. Dinani , A. Norambuena , J. R. Maze , V. Lordi , S. Kolkowitz

Characterising charge transport in a material is central to the understanding of its electrical properties, and can usually only be inferred from bulk measurements of derived quantities such as current flow. Establishing connections between…

The transfer of charge between different regions of a phase-coherent mesoscopic sample is investigated. Charge transfer from a side branch quantum dot into a ring changes the persistent current through a sequence of plateaus of diamagnetic…

Condensed Matter · Physics 2007-05-23 M. Büttiker , C. A. Stafford

A standard drift-diffusion model of space charge wave propagation in semiconductors has been studied numerically and analytically under dc voltage bias. For sufficiently long samples, appropriate contact resistivity and applied voltage -…

Condensed Matter · Physics 2009-10-31 I. R. Cantalapiedra , M. J. Bergmann , L. L. Bonilla , S. W. Teitsworth

It is shown that the traditional approach for consideration of recombination under condition of steady-state current in the absence of external carrier generation is internally contradictory. Sometimes the approach leads to obviously…

Condensed Matter · Physics 2009-11-07 I. N. Volovichev , G. Espejo , Yu. G. Gurevich , O. Yu. Titov , A. Meriuts

We demonstrate the application of two-photon absorption transient current technique to wide bandgap semiconductors. We utilize it to probe charge transport properties of single-crystal Chemical Vapor Deposition (scCVD) diamond. The charge…

Instrumentation and Detectors · Physics 2021-01-22 C. Dorfer , D. Hits , L. Kasmi , G. Kramberger , M. Lucchini , M. Mikuz , R. Wallny

A self-consistent model of bipolar charge-carrier injection and transport processes in a semiconductor/insulator/conductor system is developed which incorporates space-charge effects in the description of the injection process. The amount…

Materials Science · Physics 2008-11-27 S. V. Yampolskii , Yu. A. Genenko , C. Melzer , K. Stegmaier , H. von Seggern

Modern bandgap engineered electronic devices are typically made of multi-semiconductor multi-layer heterostructures that pose a major challenge to silicon-era characterization methods. As a result, contemporary bandgap engineering relies…

Applied Physics · Physics 2018-01-18 Yury Turkulets , Ilan Shalish

A system very similar to a dielectric barrier discharge, but with a simple stationary DC voltage, can be realized by sandwiching a gas discharge and a high-ohmic semiconductor layer between two planar electrodes. In experiments this system…

Pattern Formation and Solitons · Physics 2011-11-10 I. R. Rafatov , D. D. Sijacic , U. Ebert

Optically-active spin qubits in wide-bandgap semiconductors exist in several charge states, though typically only specific charge states exhibit desirable spin or photonic properties. An understanding of how interconversion between…

Applied Physics · Physics 2024-05-03 A. A. Wood , A. Lozovoi , R. M. Goldblatt , C. A. Meriles , A. M. Martin

A theoretical investigation is made of the dispersion characteristics of plasmons in a two-dimensional periodic system of semiconductor (dielectric) cylinders embedded in a dielectric (semiconductor) background. We consider both square and…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Manvir S. Kushwaha
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