Search Results - "SINGH, David J"
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Structure and optical properties of high light output halide scintillators
Published in Physical review. B, Condensed matter and materials physics (29-10-2010)“…Structural and optical properties of several high light output halide scintillators and closely related materials are presented based on first-principles…”
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2
Light scattering and surface plasmons on small spherical particles
Published in Light, science & applications (06-06-2014)“…Light scattering by small particles has a long and interesting history in physics. Nonetheless, it continues to surprise with new insights and applications…”
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3
Complex Band Structures and Lattice Dynamics of Bi2Te3‐Based Compounds and Solid Solutions
Published in Advanced functional materials (11-07-2019)“…Bi2Te3‐based compounds and derivatives are milestone materials in the fields of thermoelectrics (TEs) and topological insulators (TIs). They have highly…”
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4
Thermoelectrics by Computational Design: Progress and Opportunities
Published in Annual review of materials research (26-07-2021)“…The performance of thermoelectric materials is determined by their electrical and thermal transport properties that are very sensitive to small modifications…”
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5
Electronic, transport, and optical properties of bulk and mono-layer PdSe2
Published in Applied physics letters (12-10-2015)“…The electronic and optical properties of bulk and monolayer PdSe2 are investigated using first-principles calculations. Using the modified Becke-Johnson…”
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6
Second Harmonic Generation Susceptibilities from Symmetry Adapted Wannier Functions
Published in Physical review letters (30-10-2020)“…Elucidating the orbital level origin of second harmonic generation (SHG) in materials and identifying the local contributions is a long-standing challenge. We…”
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7
High three-dimensional thermoelectric performance from low-dimensional bands
Published in Physical review letters (02-04-2013)“…Reduced dimensionality has long been regarded as an important strategy for increasing thermoelectric performance, for example, in superlattices and other…”
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8
Phase-transition temperature suppression to achieve cubic GeTe and high thermoelectric performance by Bi and Mn codoping
Published in Proceedings of the National Academy of Sciences - PNAS (22-05-2018)“…Germanium telluride (GeTe)-based materials, which display intriguing functionalities, have been intensively studied from both fundamental and technological…”
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9
Room-temperature intrinsic ferromagnetism in epitaxial CrTe2 ultrathin films
Published in Nature communications (03-05-2021)“…While the discovery of two-dimensional (2D) magnets opens the door for fundamental physics and next-generation spintronics, it is technically challenging to…”
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10
Discovery of ZrCoBi based half Heuslers with high thermoelectric conversion efficiency
Published in Nature communications (27-06-2018)“…Thermoelectric materials are capable of converting waste heat into electricity. The dimensionless figure-of-merit (ZT), as the critical measure for the…”
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11
Importance of non-parabolic band effects in the thermoelectric properties of semiconductors
Published in Scientific reports (07-11-2013)“…We present an analysis of the thermoelectric properties of of n -type GeTe and SnTe in relation to the lead chalcogenides PbTe and PbSe. We find that the…”
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12
Manipulation of ionized impurity scattering for achieving high thermoelectric performance in n-type Mg₃Sb₂-based materials
Published in Proceedings of the National Academy of Sciences - PNAS (03-10-2017)“…Achieving higher carrier mobility plays a pivotal role for obtaining potentially high thermoelectric performance. In principle, the carrier mobility is…”
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13
Discovery of TaFeSb-based half-Heuslers with high thermoelectric performance
Published in Nature communications (17-01-2019)“…Discovery of thermoelectric materials has long been realized by the Edisonian trial and error approach. However, recent progress in theoretical calculations,…”
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14
Large thermoelectric power factor from crystal symmetry-protected non-bonding orbital in half-Heuslers
Published in Nature communications (30-04-2018)“…Modern society relies on high charge mobility for efficient energy production and fast information technologies. The power factor of a material—the combination…”
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15
Valence Band Splitting on Multilayer MoS2: Mixing of Spin–Orbit Coupling and Interlayer Coupling
Published in The journal of physical chemistry letters (16-06-2016)“…Understanding the origin of valence band splitting is important because it governs the unique spin and valley physics in few-layer MoS2. We explore the effects…”
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16
Bandgap Control via Structural and Chemical Tuning of Transition Metal Perovskite Chalcogenides
Published in Advanced materials (Weinheim) (01-03-2017)“…Transition metal perovskite chalcogenides are a new class of versatile semiconductors with high absorption coefficient and luminescence efficiency…”
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17
High-Throughput Screening for Advanced Thermoelectric Materials: Diamond-Like ABX2 Compounds
Published in ACS applied materials & interfaces (17-07-2019)“…High-throughput (HTP) calculations are a highly promising direction for the discovery of novel functional materials. Here we use an HTP framework to…”
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18
Electronic structure, disconnected Fermi surfaces and antiferromagnetism in the layered pnictide superconductor NaxBa1−xTi2Sb2O
Published in New journal of physics (07-12-2012)“…We report electronic structure calculations for BaTi2Sb2O and discuss the results in relation to the observed superconductivity of this material when hole…”
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19
Strain effects on the band gap and optical properties of perovskite SrSnO3 and BaSnO3
Published in Applied physics letters (06-01-2014)“…We report calculations of the band gaps and optical spectra of perovskite BaSnO3 and SrSnO3 as a function of strain. We find that the behavior of these…”
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20
Optical and electronic properties of semiconducting Sn2S3
Published in Applied physics letters (18-07-2016)“…We report the electronic and optical properties of Sn2S3 as obtained from first principles calculations with the modified Becke-Johnson potential. The…”
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