Electrical properties in low temperature range (5K–300K) of Tantalum Oxide dielectric MIM capacitors

2005 ◽  
Vol 45 (5-6) ◽  
pp. 925-928 ◽  
Author(s):  
E. Deloffre ◽  
L. Montès ◽  
G. Ghibaudo ◽  
S. Bruyère ◽  
S. Blonkowski ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Low Temperature ◽  
Tantalum Oxide ◽  
Temperature Range ◽  
Mim Capacitors

scholarly journals The elastic, magnetic, and electrical properties of Sr1–уYуCoO3–x cobaltites in the composition range 0.2 ≤ y ≤ 0.3

2020 ◽  
Vol 56 (2) ◽  
pp. 224-231
Author(s):  
M. V. Bushinsky ◽  
N. V. Tereshko ◽  
A. N. Chobot ◽  
O. S. Mantytskaya ◽  
V. V. Fedotova ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Low Temperature ◽  
Phase Transformations ◽  
Composition Range ◽  
Magnetic Phase ◽  
Ceramic Technology ◽  
Temperature Phase ◽  
Temperature Range ◽  
Layered Cobaltites ◽  
Magnetic And Electrical Properties

Anion-deficient layered cobaltites Sr0.75Ln0.25CoO3–x (Ln is a lanthanide) have attracted the special attention of the scientists who study the nature of phase transformations in perovskite-like cobaltites, the anomalous behavior of the temperature magnetization of which is still the subject of scientific discussion. The purpose of this work is to investigate the regularity of changes in the elastic, magnetic, and electrical properties of layered cobaltites Sr1–уYуCoO3–x in the composition range 0.2 ≤ y ≤ 0.3 over a wide temperature range. The studied polycrystalline samples were obtained by the known ceramic technology in the air. Electron microscopic studies were performed on a LEO 1455 PV scanning electron microscope. The temperature dependence of the Young’s modulus was studied by the method of resonance vibrations in the frequency range 1000–6000 Hz and in the temperature range 100–450 K. X-ray phase analysis was performed on a DRON-3M diffractometer under Cu-Kα radiation. Magnetic measurements were performed using a physical property measurement system (Cryogenic Ltd.) in the temperature range 5–325 K. As a result of the studies, it was found that in the temperature range 25–300 K, Sr1–уYуCoO3–x solid solutions (0.2 ≤ y ≤ 0.3) are characterized by the semiconductor-like conductivity. No significant magnetoresistive effect was observed in this temperature range for the studied compositions. It was shown that the Sr1–уYуCoO3–x solid solution (у = 0.25) exhibits two magnetic phase transformations: low-temperature near 220 K and high-temperature at 350 K. The nearby compositions of the concentration range 0.2 ≤ y ≤ 0.3 exhibit magnetic phase transformations at temperatures above room temperature. No low-temperature phase transitions were detected in them. It has been established that magnetic phase transformations are accompanied by structural transitions at corresponding temperatures.

scholarly journals Anion-exchange synthesis of thermoelectric layered SnS0.1Se0.9−xTex nano/microstructures in aqueous solution: complexity and carrier concentration

2019 ◽  
Vol 7 (25) ◽  
pp. 7572-7579 ◽  
Author(s):  
Lisi Huang ◽  
Guang Han ◽  
Bin Zhang ◽  
Duncan H. Gregory
Keyword(s):  
Aqueous Solution ◽  
Electrical Properties ◽  
Low Temperature ◽  
Carrier Concentration ◽  
Anion Exchange ◽  
Temperature Range

Nanostructured SnS0.1Se0.9−xTex quaternary chalcogenides have been synthesized via anion exchange; sintered SnS0.1Se0.88Te0.02 achieves enhanced electrical properties in the low-temperature range.

Electrical properties of thin-film resistors in a wide temperature range

Circuit World ◽  
2015 ◽  
Vol 41 (3) ◽  
pp. 116-120 ◽  
Author(s):  
Paweł Winiarski ◽  
Adam Kłossowicz ◽  
Jacek Wróblewski ◽  
Andrzej Dziedzic ◽  
Wojciech Stęplewski
Keyword(s):  
Thin Film ◽  
Electrical Properties ◽  
Low Temperature ◽  
Wide Temperature Range ◽  
Linear Temperature Dependence ◽  
Content Type ◽  
Temperature Range ◽  
Wide Range ◽  
Thin Film Resistors ◽  
Thermal Shocks

Purpose – The purpose of this paper is to characterize electrical properties of nickel-phosphorus (Ni-P) thin-film resistors made on FR-4 laminate in a wide range of temperature (from −180 to 20°C). Design/methodology/approach – The study was performed using resistors made of Ni-P foil with two different thicknesses (0.1 or 0.05 μm) and sheet resistances (100 or 250 Ω/sq), respectively. The resistance rectangular resistors had length and width from the range between 0.59 and 5.91 mm. The resistance versus temperature characteristics and their distribution as well as resistors ' durability to low-temperature thermal shocks were investigated. Findings – The results showed almost linear temperature dependence of resistance with a negative temperature coefficient of resistance of about −95 ppm/°C for 250 Ω/sq layer and −55 ppm/°C for 100 Ω/sq layer. A very small dimensional effect was observed for sheet resistance as well as for R(T) characteristic. Thin-film resistors are also characterized by very high durability to low-temperature thermal shocks. Originality/value – The results presented in this paper can be very useful for low-temperature applications of thin-film resistors made on printed circuit boards. They suggest possibility of wide applications of these components in a wide temperature range.

Low Temperature Epitaxy of Hg1−xCdxTe

1988 ◽  
Vol 129 ◽  
Author(s):  
N. W. Cody ◽  
U. Sudarsan ◽  
R. Solanki
Keyword(s):  
Growth Rate ◽  
Electrical Properties ◽  
Low Temperature ◽  
Cadmium Telluride ◽  
Mercury Cadmium Telluride ◽  
Epitaxial Layers ◽  
High Quality ◽  
Temperature Range ◽  
Deposited Films ◽  
Low Temperature Epitaxy

ABSTRACTMercury cadmium telluride epitaxial layers have been grown using methylallyltelluride (MATe), dimethylcadmium (DMCd), and elemental Hg. Using these precursors high quality films have been achieved over the temperature range of 200-300°C. Comparisons are made between UV photon-assisted and thermally deposited films. Composition, growth rate, and electrical properties are compared for the two processes under various parameter conditions. Properties of films deposited on various substrates including CdTe, GaAs, and GaAs/Si are also described.

scholarly journals Effect of Curing Agents on Electrical Properties of Low-Temperature Curing Conductive Coatings and Thermodynamic Analysis

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 656
Author(s):  
Junjie Shu ◽  
Yang Wang ◽  
Bei Guo ◽  
Weihua Qin ◽  
Lanxuan Liu ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Low Temperature ◽  
Surface Resistance ◽  
Advanced Manufacturing ◽  
Curing Time ◽  
Conductive Coatings ◽  
Exponential Factor ◽  
Design Expert ◽  
Surface Method ◽  
Curing Agents

Silver-based high-conductivity coatings are used in many advanced manufacturing equipment and components, and existing coatings require high-temperature curing. This paper studies the effects of different curing agents on the electrical properties of low-temperature curing (<100 °C) conductive coatings, and analyzes the effects of different curing temperatures and curing time on the surface resistance, square resistance and resistivity of conductive coatings. The response surface method in Design Expert was used to construct the model, and the curing thermodynamics of different curing agents were analyzed by DSC. It was found that curing agents with lower Tm and activation energy, higher pre-exponential factor and more flexible segments are beneficial to the preparation of highly conductive coatings.

MAGNETIC PROPERTIES OF U1-xDyxAlyNi5-y (y=0,1) SYSTEMS

2003 ◽  
Vol 17 (27n28) ◽  
pp. 1453-1460
Author(s):  
ILEANA LUPSA
Keyword(s):  
Magnetic Properties ◽  
Low Temperature ◽  
Spin Fluctuation ◽  
Magnetic Moments ◽  
Transition Temperatures ◽  
Temperature Range ◽  
Fluctuation Model ◽  
Magnetically Ordered

The magnetic properties of U 1-x Dy x Al y Ni 5-y (y=0,1) systems were investigated in the 2(5)–600 K temperature range and for fields up to 80 kOe. The systems having x≥0.2 are magnetically ordered with low transition temperatures and magnetization mainly due to the Dy contribution. The nickel exhibits magnetic moments, very weak in the low temperature range and well-defined effective moments over transition temperatures. The nickel behavior is discussed in terms of the spin fluctuation model.

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