Size-dependent transport and retention of micron-sized plastic spheres in natural sand saturated with seawater

Grain-size dependence of electronic transport and magnetoresistance (MR) properties of nanostructured La0.7Sr0.3 MnO3 (LSMO) manganite thin films on LaAlO3 (100) single crystal substrates prepared using Chemical Solution Deposition (CSD) technique have been studied. The LSMO thin films were annealed at temperatures in the range of 700–1000 °C for different time intervals [6 h and 12 h] and crystallized as singlephase LSMO. Microstructural studies carried out using AFM show a marginal increase in the grain-size from 50 to 90 nm as the temperature was varied from 700 °C to 1000 °C respectively. It has been observed that the insulator-metal transition (TP) and MR depend on the grain size. In zero applied field, resistivity reduction is ∼ 103 at 5 K for the films annealed at 700 °C [TP ∼ 341 K] and 1000 °C [TP ∼ 373 K]. MR versus H isotherms reveal that MR enhances in the vicinity of TP but decreases at low temperatures. The results obtained from the electronic and magnetotransport studies are in good agreement with the change in surface morphology of the films studied, which shows that the randomly distributed domains are composed of faceted grains. Synthesizing conditions, annealing temperature and time control the growth and alignment of grains into the domains, which cause better conduction at grain interface.

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Size Dependent Transport of Surrounding Gate Carbon Nanotube Field Effect Transistor

ECS Journal of Solid State Science and Technology ◽

10.1149/2.010309jss ◽

2013 ◽

Vol 2 (9) ◽

pp. M23-M27 ◽

Cited By ~ 1

Author(s):

Md. Shafayat Hossain ◽

Saeed Uz Zaman Khan ◽

Ahmedullah Aziz ◽

Muhammad Abdullah Arafat ◽

Quazi D. M. Khosru

Keyword(s):

Carbon Nanotube ◽

Field Effect ◽

Field Effect Transistor ◽

Size Dependent ◽

Surrounding Gate ◽

Effect Transistor ◽

Dependent Transport

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Multi-domain model for pore-size dependent transport of solutes in soils

Geoderma ◽

10.1016/0016-7061(95)00083-6 ◽

1996 ◽

Vol 70 (2-4) ◽

pp. 281-297 ◽

Cited By ~ 26

Author(s):

W. Durner ◽

H. Flühler

Keyword(s):

Pore Size ◽

Domain Model ◽

Size Dependent ◽

Dependent Transport

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Extreme electron transport suppression in siloxane ring-based molecular devices

Physical Chemistry Chemical Physics ◽

10.1039/c8cp03616k ◽

2018 ◽

Vol 20 (36) ◽

pp. 23352-23362 ◽

Cited By ~ 3

Author(s):

Jie Li ◽

Yunrui Duan ◽

Tao Li ◽

Hui Li

Keyword(s):

Electron Transport ◽

Molecular Devices ◽

Electronic Coupling ◽

Size Dependent ◽

Dependent Transport

Siloxane ring-based molecular devices possess excessive transport suppression and size-dependent transport decay, based on an analysis of electronic coupling.

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Production and STEM examination of controlled-size silver clusters

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100075488 ◽

1983 ◽

Vol 41 ◽

pp. 338-339

Author(s):

M. A. Listvan ◽

R. P. Andres

Keyword(s):

Cluster Size ◽

Metal Clusters ◽

Experimental Parameter ◽

Carbon Films ◽

Metal Species ◽

Silver Clusters ◽

Free Jet ◽

Size Dependent ◽

Cluster Properties ◽

Controllable Size

Knowledge of the function and structure of small metal clusters is one goal of research in catalysis. One important experimental parameter is cluster size. Ideally, one would like to produce metal clusters of regulated size in order to characterize size-dependent cluster properties.A source has been developed which is capable of producing microscopic metal clusters of controllable size (in the range 5-500 atoms) This source, the Multiple Expansion Cluster Source, with a Free Jet Deceleration Filter (MECS/FJDF) operates as follows. The bulk metal is heated in an oven to give controlled concentrations of monomer and dimer which were expanded sonically. These metal species were quenched and condensed in He and filtered to produce areosol particles of a controlled size as verified by mass spectrometer measurements. The clusters were caught on pre-mounted, clean carbon films. The grids were then transferred in air for microscopic examination. MECS/FJDF was used to produce two different sizes of silver clusters for this study: nominally Ag6 and Ag50.

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