Search Results - "Hellberg, C. Stephen"
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Twist Angle-Dependent Atomic Reconstruction and Moiré Patterns in Transition Metal Dichalcogenide Heterostructures
Published in ACS nano (28-04-2020)“…Van der Waals layered materials, such as transition metal dichalcogenides (TMDs), are an exciting class of materials with weak interlayer bonding, which…”
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Double Indirect Interlayer Exciton in a MoSe2/WSe2 van der Waals Heterostructure
Published in ACS nano (22-05-2018)“…An emerging class of semiconductor heterostructures involves stacking discrete monolayers such as transition metal dichalcogenides (TMDs) to form van der Waals…”
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3
What superconducts in sulfur hydrides under pressure and why
Published in Physical review. B, Condensed matter and materials physics (27-02-2015)“…The recent discovery of superconductivity at 190 K in highly compressed H sub(2)S is spectacular not only because it sets a record high critical temperature,…”
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Nanoscale stacking fault-assisted room temperature plasticity in flash-sintered TiO2
Published in Science advances (20-09-2019)“…Ceramic materials have been widely used for structural applications. However, most ceramics have rather limited plasticity at low temperatures and fracture…”
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Efficiency of Multiexciton Generation in Colloidal Nanostructures
Published in Accounts of chemical research (18-06-2013)“…Solar energy production, one of the world’s most important unsolved problems, has the potential to be a source of clean, renewable energy if scientists can…”
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LaAlO3 stoichiometry is key to electron liquid formation at LaAlO3/SrTiO3 interfaces
Published in Nature communications (22-08-2013)“…Emergent phenomena, including superconductivity and magnetism, found in the two-dimensional electron liquid (2-DEL) at the interface between the insulators…”
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Anomalous temperature-dependent spin-valley polarization in monolayer WS2
Published in Scientific reports (05-01-2016)“…Single layers of transition metal dichalcogenides (TMDs) are direct gap semiconductors with nondegenerate valley indices. An intriguing possibility for these…”
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Demonstration of the Effectiveness of the Cascaded Variational Quantum Eigensolver Using the Jastrow Ansatz for Molecular Calculations
Published in ACS omega (14-05-2024)“…We demonstrate how the cascaded variational quantum eigensolver (CVQE) can be applied to study molecular systems for the family of Jastrow ansatzes…”
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Quantum simulation of multiple-exciton generation in a nanocrystal by a single photon
Published in Physical review letters (22-09-2010)“…We have shown theoretically that efficient multiple-exciton generation (MEG) by a single photon can be observed in small nanocrystals. Our quantum simulations…”
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Asymmetric photoelectric effect: Auger-assisted hot hole photocurrents in transition metal dichalcogenides
Published in Nanophotonics (Berlin, Germany) (01-01-2021)“…Transition metal dichalcogenide (TMD) semiconductor heterostructures are actively explored as a new platform for quantum optoelectronic systems. Most state of…”
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Electron pairing without superconductivity
Published in Nature (London) (14-05-2015)“…Evidence is presented for electron pairing in strontium titanate far above the superconducting transition temperature; such pairs are thought to be the…”
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Preparing quantum statistical ensembles using mid-circuit measurements
Published in Quantum information processing (31-05-2024)“…We explore the relationship between entropy and quantum measurements and present a variational algorithm for preparing statistical ensembles on quantum…”
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Emergent Moiré Phonons Due to Zone Folding in WSe2–WS2 Van der Waals Heterostructures
Published in ACS nano (25-10-2022)“…Bilayers of 2D materials offer opportunities for creating devices with tunable electronic, optical, and mechanical properties. In van der Waals…”
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Correction to Twist Angle-Dependent Atomic Reconstruction and Moiré Patterns in Transition Metal Dichalcogenide Heterostructures
Published in ACS nano (27-10-2020)Get full text
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Cascaded variational quantum eigensolver algorithm
Published in Physical review research (01-03-2024)“…We present a cascaded variational quantum eigensolver algorithm that only requires the execution of a set of quantum circuits once rather than at every…”
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Structure of SrTiO3 films on Si
Published in Physical review letters (20-04-2012)“…The epitaxial deposition of oxides on silicon opens the possibility of incorporating their diverse properties into silicon-device technology. Deposition of…”
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Double Indirect Interlayer Exciton in a MoSe 2 /WSe 2 van der Waals Heterostructure
Published in ACS nano (22-05-2018)“…An emerging class of semiconductor heterostructures involves stacking discrete monolayers such as transition metal dichalcogenides (TMDs) to form van der Waals…”
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Entanglement generation of nearly random operators
Published in Physical review letters (15-07-2005)“…We study the entanglement generation of operators whose statistical properties approach those of random matrices but are restricted in some way. These include…”
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Multiple time scale blinking in InAs quantum dot single-photon sources
Published in Physical review. B, Condensed matter and materials physics (16-04-2014)“…We use photon correlation measurements to study blinking in single, epitaxially grown self-assembled InAs quantum dots situated in circular Bragg grating and…”
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Stripes and the t-J Model
Published in Physical review letters (05-07-1999)Get full text
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