scholarly journals Optical properties of plasmonic nanopore arrays prepared by electron beam and colloidal lithography

2019 ◽  
Vol 1 (11) ◽  
pp. 4282-4289
Author(s):  
Bita Malekian ◽  
Kunli Xiong ◽  
Evan S. H. Kang ◽  
John Andersson ◽  
Gustav Emilsson ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electron Beam ◽  
Long Range ◽  
Short Range ◽  
Colloidal Lithography ◽  
Nanopore Arrays ◽  
Long Range Ordering

We present new plasmonic nanopore arrays and their optical properties, in particular the influence from short-range vs. long-range ordering.

Relation Between Short-Range and Long-Range Ordering and Physical Properties of Corrosion-Resistant Alloys of the Ni – Cr – Mo System

2020 ◽  
Vol 61 (11-12) ◽  
pp. 792-797
Author(s):  
A. Yu. Zhilyakov ◽  
S. V. Belikov ◽  
A. F. Gibadullina ◽  
I. B. Polovov ◽  
I. V. Ilikbaev
Keyword(s):  
Physical Properties ◽  
Long Range ◽  
Short Range ◽  
Corrosion Resistant ◽  
Long Range Ordering

Large Magnetic Anisotropy in Co3Pt Ordered Phase Thin Films

1998 ◽  
Vol 517 ◽  
Author(s):  
Yoshiyasu Yamada ◽  
Takao Suzuki
Keyword(s):  
Thin Films ◽  
Activation Energy ◽  
Magnetic Anisotropy ◽  
Long Range ◽  
Deposition Temperature ◽  
Short Range ◽  
Room Temperature ◽  
Perpendicular Magnetic Anisotropy ◽  
Fept Alloy ◽  
Long Range Ordering

AbstractThe very large perpendicular magnetic anisotropy of the order of 2 x 107 erg/cm3 at room temperature was found in CoJ-x Ptx(0<x<0.5) alloy thin films made by e-beam evaporation. The large magnetic anisotropy is likely related to the anisotropic Co-Co bonding distribution, which is similar to the cases of Co/Pt multilayers and FePt alloy thin films. The activation energy estimated for the ordering is approximately 0.3 eV, which is preferably compared to 0.2 eV for FePt. A model is proposed, for which both a short range and long range ordering are present, depending on substrate deposition temperature.

The transition from short-range to long-range ordering of oxygen vacancies in CaFexTi1-xO3-x/2 perovskites

2000 ◽  
Vol 2 (17) ◽  
pp. 3933-3941 ◽  
Author(s):  
Ana I. Becerro ◽  
Falko Langenhorst ◽  
Ross J. Angel ◽  
Stefan Marion ◽  
Catherine A. McCammon ◽  
...  
Keyword(s):  
Long Range ◽  
Short Range ◽  
Oxygen Vacancies ◽  
Long Range Ordering

scholarly journals Gold nanoholes fabricated by colloidal lithography: novel insights into nanofabrication, short-range correlation and optical properties

Nanoscale ◽  
2019 ◽  
Vol 11 (17) ◽  
pp. 8416-8432 ◽  
Author(s):  
Maura Cesaria ◽  
Antonietta Taurino ◽  
Maria Grazia Manera ◽  
Maria Minunni ◽  
Simona Scarano ◽  
...  
Keyword(s):  
Optical Properties ◽  
Short Range ◽  
Colloidal Lithography ◽  
Short Range Correlation ◽  
Sem Images ◽  
Range Correlation ◽  
Fft Analysis

A simplified colloidal lithography protocol (polyelectrolyte monolayer) for Au nanohole fabrication and autocorrelation/FFT analysis of SEM images to disclose hidden short-range periodicities.

Short-range and long-range scattering in electron beam lithography

1993 ◽  
Vol 20 (3) ◽  
pp. 241-253 ◽  
Author(s):  
G. Messina ◽  
A. Paoletti ◽  
S. Santangelo ◽  
A. Tucciarone
Keyword(s):  
Electron Beam ◽  
Long Range ◽  
Electron Beam Lithography ◽  
Short Range

scholarly journals A simple model for vacancy order and disorder in defective half-Heusler systems

IUCrJ ◽  
2020 ◽  
Vol 7 (4) ◽  
pp. 673-680
Author(s):  
Nikolaj Roth ◽  
Tiejun Zhu ◽  
Bo B. Iversen
Keyword(s):  
Thermal Conductivity ◽  
Simple Model ◽  
Long Range ◽  
Electron Scattering ◽  
Short Range ◽  
Bragg Diffraction ◽  
Order And Disorder ◽  
System A ◽  
Vacancy Ordering ◽  
Long Range Ordering

Defective half-Heusler systems X 1−x YZ with large amounts of intrinsic vacancies, such as Nb1−x CoSb, Ti1−x NiSb and V1−x CoSb, are a group of promising thermoelectric materials. Even with high vacancy concentrations they maintain the average half-Heusler crystal structure. These systems show high electrical conductivity but low thermal conductivity arising from an ordered YZ substructure, which conducts electrons, while the large amounts of vacancies in the X substructure effectively scatters phonons. Using electron scattering, it was recently observed that, in addition to Bragg diffraction from the average cubic half-Heusler structure, some of these samples show broad diffuse scattering indicating short-range vacancy order, while other samples show sharp additional peaks indicating long-range vacancy ordering. Here it is shown that both the short- and long-range ordering can be explained using the same simple model, which assumes that vacancies in the X substructure avoid each other. The samples showing long-range vacancy order are in agreement with the predicted ground state of the model, while short-range order samples are quenched high-temperature states of the system. A previous study showed that changes in sample stoichiometry affect whether the short- or long-range vacancy structure is obtained, but the present model suggests that thermal treatment of samples should allow controlling the degree of vacancy order, and thereby the thermal conductivity, without changes in composition. This is important as the composition also dictates the amount of electrical carriers. Independent control of electrical carrier concentration and degree of vacancy order should allow further improvements in the thermoelectric properties of these systems.

Short-range and long-range ordering in ferromagnetic binary alloys

1978 ◽  
Vol 11 (13) ◽  
pp. 2815-2822 ◽  
Author(s):  
L Billard ◽  
P Villemain ◽  
A Chamberod
Keyword(s):  
Long Range ◽  
Short Range ◽  
Binary Alloys ◽  
Long Range Ordering

Spontaneous Lateral Composition Modulation in III-V Semiconductor Alloys

MRS Bulletin ◽  
1997 ◽  
Vol 22 (7) ◽  
pp. 38-43 ◽  
Author(s):  
J. Mirecki Millunchick ◽  
R.D. Twesten ◽  
S.R. Lee ◽  
D.M. Follstaedt ◽  
E.D. Jones ◽  
...  
Keyword(s):  
Long Range ◽  
High Speed ◽  
Short Range ◽  
Carrier Mobility ◽  
Alloy System ◽  
Semiconductor Alloys ◽  
Chemical Ordering ◽  
Short Range Ordering ◽  
Device Structures ◽  
Long Range Ordering

The application of III-V semiconductor alloys in device structures is of importance for high-speed microelectronics and optoelectronics. These alloys have allowed the device engineer to tailor material parameters such as the bandgap and carrier mobility to the need of the device by altering the alloy composition. When using ternary or quaternary materials, the device designer presumes that the alloy is completely disordered, without any correlation between the atoms on the cation (anion) sublattice. However the thermodynamics of the alloy system often produce material that has some degree of macroscopic or microscopic ordering. Short-range ordering occurs when atoms adopt correlated neighboring positions over distances of the order of a few lattice spacings. This can be manifested as the preferential association of like atoms, as in clustering, or of unlike atoms, as in chemical ordering (e.g., CuPt ordering). Long-range ordering occurs over many tens of lattice spacings, as in the case of phase separation. In either short-range or long-range ordering, the band structure and the crystal symmetry are greatly altered. Therefore it is absolutely critical that the mechanisms be fully understood to prevent ordering when necessary or to exploit it when possible.

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