Results 251 to 260 of about 52,373 (281)
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Electrodeposited Ceramic Superlattices
Science, 1990Ceramic superlattices have been produced by electrodeposition with modulation wavelengths in the range from 5 to 10 nanometers. The Tl a Pb b O c /Tl d Pb e O f superlattices were deposited from a ...
J A, Switzer, M J, Shane, R J, Phillips
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International Journal of Modern Physics C, 2010
A new family of superlattice structures modulated by the pseudo-Gaussian potential is proposed. The correlation between the configuration of minibands and the superlattice geometry is revealed using the transfer matrix approach.
Paulescu, Marius +2 more
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A new family of superlattice structures modulated by the pseudo-Gaussian potential is proposed. The correlation between the configuration of minibands and the superlattice geometry is revealed using the transfer matrix approach.
Paulescu, Marius +2 more
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ACS Applied Materials & Interfaces, 2015
We studied experimentally and theoretically the direction-dependent elastic and electromagnetic wave propagation in a supported film of hybrid PMMA (poly[methyl-methacrylate])-TiO2 superlattice (SL). In the direction normal to the layers, this one-dimensional periodic structure opens propagation band gaps for both hypersonic (GHz) phonons and near-UV ...
Alonso-Redondo, E. +6 more
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We studied experimentally and theoretically the direction-dependent elastic and electromagnetic wave propagation in a supported film of hybrid PMMA (poly[methyl-methacrylate])-TiO2 superlattice (SL). In the direction normal to the layers, this one-dimensional periodic structure opens propagation band gaps for both hypersonic (GHz) phonons and near-UV ...
Alonso-Redondo, E. +6 more
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Gold nanoparticle superlattices
Chemical Society Reviews, 2008Ordered metal nanoparticle assemblies--superlattices--have captivated and stirred the imagination of scientists and engineers alike and promise great prospect for future technologies. This potential though will greatly be determined by the understanding and control that can be exerted on the assembling processes.
B L V, Prasad +2 more
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Superlattice magnetoroton bands
Physical Review Letters, 1987We present a theory for the effect of interlayer coupling in a superlattice on the magnetoroton modes of a two-dimensional electron gas in a strong magnetic field. We find that for typical fields and layer spacings the modes broaden into bands. For sufficiently small layer spacings, the gap necessary for the occurrence of the fractional quantum Hall ...
, Oji, , MacDonald, , Girvin
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Applied Physics Letters, 1992
Si-GaAs(001) superlattices have been grown by molecular beam epitaxy. X-ray interference measurements and Raman spectroscopy studies in the acoustic range for (Si)2(GaAs)28 and (Si)3(GaAs)50 superlattice structures demonstrate that pseudomorphic growth conditions were achieved.
Sorba, L. +6 more
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Si-GaAs(001) superlattices have been grown by molecular beam epitaxy. X-ray interference measurements and Raman spectroscopy studies in the acoustic range for (Si)2(GaAs)28 and (Si)3(GaAs)50 superlattice structures demonstrate that pseudomorphic growth conditions were achieved.
Sorba, L. +6 more
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Calculated superlattice and interface phonons of InAs/GaSb superlattices
Physical Review B, 1986The phonon spectrum of InAs/GaSb superlattices is calculated with a linear-chain model with interplanar force constants. Apart from confined and extended modes, as found also in GaAs/GaAlAs superlattices, this system shows new modes localized at the interface. These latter modes depend crucially on the nature (InSb or GaAs) of the interface and some of
A. Fasolino, MOLINARI, Elisa, J. C. Maan
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Hydrodynamic moiré superlattice
ScienceThe structural periodicity in photonic crystals guarantees the crystal’s effective energy band structure, which is the fundamental cornerstone of topological and moiré physics. However, the shear modulus in most fluids is close to zero, which makes it challenging for fluids to maintain spatial periodicity akin to photonic crystals. We realized periodic
Guoqiang Xu +7 more
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2020
This chapter gives an overview of nanoparticle superlattices (NSLs) research mainly from the last decade focusing on NSLs made from 1 to 20 nm nanoparticles in a size range where electronic, magnetic, and optical properties are prominent. Nanostructured and nanopatterned materials have multiple uses in technological applications and in many research ...
Thomas Steffi S, Meder Fabian
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This chapter gives an overview of nanoparticle superlattices (NSLs) research mainly from the last decade focusing on NSLs made from 1 to 20 nm nanoparticles in a size range where electronic, magnetic, and optical properties are prominent. Nanostructured and nanopatterned materials have multiple uses in technological applications and in many research ...
Thomas Steffi S, Meder Fabian
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MRS Proceedings, 1995
ABSTRACTCoNiCu/Cu superlattice nanowires have been grown by electrodeposition in nuclear tracketched nanoporous membranes. Transmission electron microscopy (TEM) images show a good layer structure and allow an estimate of the current efficiency. Current perpendicular to plane (CPP) giant magnetoresistance of up to 22%, at ambient temperature, has been ...
Attenborough, K +6 more
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ABSTRACTCoNiCu/Cu superlattice nanowires have been grown by electrodeposition in nuclear tracketched nanoporous membranes. Transmission electron microscopy (TEM) images show a good layer structure and allow an estimate of the current efficiency. Current perpendicular to plane (CPP) giant magnetoresistance of up to 22%, at ambient temperature, has been ...
Attenborough, K +6 more
openaire +1 more source