scholarly journals Role of volume versus defects in the electrical resistivity of lattice-distorted V(001) ultrathin films

2007 ◽  
Vol 76 (19) ◽  
Author(s):  
Y. Huttel ◽  
J. I. Cerdá ◽  
J. L. Martínez ◽  
A. Cebollada
Keyword(s):  
Electrical Resistivity ◽  
Ultrathin Films ◽  
Volume Versus

The role of the interplay between polymer architecture and bacterial surface properties on the microbial adhesion to polyoxazoline-based ultrathin films

Biomaterials ◽  
2010 ◽  
Vol 31 (36) ◽  
pp. 9462-9472 ◽  
Author(s):  
Bidhari Pidhatika ◽  
Jens Möller ◽  
Edmondo M. Benetti ◽  
Rupert Konradi ◽  
Ekaterina Rakhmatullina ◽  
...  
Keyword(s):  
Surface Properties ◽  
Ultrathin Films ◽  
Polymer Architecture ◽  
Microbial Adhesion ◽  
Bacterial Surface

scholarly journals Subsurface tectonic characterizations by the use of geo-electrical resistivity technique and their implications on environmental soil and groundwater at Erbil dumpsite, west of Erbil city – Iraqi Kurdistan region

2019 ◽  
Vol 49 (3) ◽  
pp. 325-354 ◽  
Author(s):  
Sirwa Qader Smail Gardi ◽  
Jamal Asfahani
Keyword(s):  
Electrical Resistivity ◽  
Groundwater Table ◽  
Kurdistan Region ◽  
Study Region ◽  
Northern Iraq ◽  
Subsurface Structures ◽  
Iraqi Kurdistan ◽  
Geological Information ◽  
Exact Position

Abstract Twenty seven vertical electrical resistivity soundings (VES), distributed on three profiles, have been carried out around the Erbil city dumpsite location in northern Iraq, by using Schlumberger configuration. The main objective of those VES soundings is to characterize the subsurface structures and to detect the probable soil contamination zones at the dumpsite and the surrounding district. Bai Hassan aquifer in the study region is one of most important natural fresh water in the central sub-basin of Erbil. The 2D Pichgin and Habibulleav technique is applied herein to study and analyse the three VES profiles. Its application in the study region has highly demonstrated the efficacy of such a technique. In fact, the subsurface structures in the study area have been recognized, and the exact position, dip, direction of the faults and groundwater level were also precisely detected. The role of applying this technique together with the available geological information, while carrying out geo-electrical surveys is emphasized to obtain useful, cheap and fast lithological, groundwater table and structural subsurface information.

scholarly journals Nanostructure Determines the Wettability of Gold Surfaces by Ionic Liquid Ultrathin Films

2021 ◽  
Vol 9 ◽  
Author(s):  
Francesca Borghi ◽  
Matteo Mirigliano ◽  
Cristina Lenardi ◽  
Paolo Milani ◽  
Alessandro Podestà
Keyword(s):  
Ionic Liquid ◽  
Ionic Liquids ◽  
Ultrathin Films ◽  
Gold Nanostructures ◽  
Lateral Extension ◽  
Gold Surfaces ◽  
Energy Devices ◽  
Biomedical Technologies ◽  
Electrified Interfaces

Ionic liquids are employed in energy storage/harvesting devices, in catalysis and biomedical technologies, due to their tunable bulk and interfacial properties. In particular, the wettability and the structuring of the ionic liquids at the interface are of paramount importance for all those applications exploiting ionic liquids tribological properties, their double layer organization at electrified interfaces, and interfacial chemical reactions. Here we report an experimental investigation of the wettability and organization at the interface of an imidazolium-based ionic liquid ([Bmim][NTf2]) and gold surfaces, that are widely used as electrodes in energy devices, electronics, fluidics. In particular, we investigated the role of the nanostructure on the resulting interfacial interactions between [Bmim][NTf2] and atom-assembled or cluster-assembled gold thin films. Our results highlight the presence of the solid-like structured ionic liquid domains extending several tens of nanometres far from the gold interfaces, and characterized by different lateral extension, according to the wettability of the gold nanostructures by the IL liquid-phase.

ROLE OF FRUSTRATION IN MAGNETISM AND THERMODYNAMIC PROPERTIES OF YMn2 AND β-Mn

1993 ◽  
Vol 07 (01n03) ◽  
pp. 1008-1012 ◽  
Author(s):  
M. SHIGA ◽  
K. YOSHIMOTO ◽  
H. NAKAMURA ◽  
H. WADA
Keyword(s):  
Electrical Resistivity ◽  
Magnetic Susceptibility ◽  
Thermodynamic Properties ◽  
Specific Heat ◽  
Temperature Dependence ◽  
Ground State ◽  
Quantum Spin ◽  
Spin Liquid ◽  
Quantum Spin Liquid

The temperature dependence of the magnetic susceptibility, the specific heat and the electrical resistivity of Y(Sc) (Mn1−xAlx)2 and β-Mn1−xAlx systems has been measured. It is shown that the ground state for x=0 is not a simple Pauli paramagnet but may be regarded as a quantum spin liquid. The substitution of Al for Mn results in the spin glass freezing. The role of frustration is discussed for understanding these phenomena.

PHYSICAL PROPERTIES OF AU AND AL THIN FILMS MEASURED BY RESISTIVE HEATING

2005 ◽  
Vol 12 (01) ◽  
pp. 101-106 ◽  
Author(s):  
F. AVILÉS ◽  
O. CEH ◽  
A. I. OLIVA
Keyword(s):  
Thin Films ◽  
Electrical Resistivity ◽  
Surface Film ◽  
Grazing Incidence ◽  
Intrinsic Stress ◽  
Thermal Coefficient ◽  
X Rays ◽  
Joule Effect ◽  
Au Thin Films

The electrical resistivity (ρ), resistive thermal coefficient (αr), thermal expansion coefficient (αt) and stress (σ) of Al and Au thin films deposited by thermal evaporation were measured while films were heated by Joule effect. Electrical resistivity measured by the four-probe technique was simultaneously measured with surface film temperature in real time. Au films show important variations in the αr and ρ properties when thickness ranged from 0.1μm to 1μm; contrarily, Al films show insignificant variations in the 0.1μm to 2γm thickness range. The role of the surface aluminum oxide on these measurements and the intrinsic stress on films determined with grazing incidence X-rays are discussed.

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