scholarly journals Anomalous electrical conduction and negative temperature coefficient of resistance in nanostructured gold resistive switching films

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
M. Mirigliano ◽  
S. Radice ◽  
A. Falqui ◽  
A. Casu ◽  
F. Cavaliere ◽  
...  
Keyword(s):  
Grain Boundaries ◽  
Temperature Coefficient ◽  
Resistive Switching ◽  
Electrical Conduction ◽  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
High Density ◽  
Gold Films ◽  
Temperature Coefficient Of Resistance ◽  
Nanostructured Gold

AbstractWe report the observation of non-metallic electrical conduction, resistive switching, and a negative temperature coefficient of resistance in nanostructured gold films above the electrical percolation and in strong-coupling regime, from room down to cryogenic temperatures (24 K). Nanostructured continuous gold films are assembled by supersonic cluster beam deposition of Au aggregates formed in the gas phase. The structure of the cluster-assembled films is characterized by an extremely high density of randomly oriented crystalline nanodomains, separated by grain boundaries and with a large number of lattice defects. Our data indicates that space charge limited conduction and Coulomb blockade are at the origin of the anomalous electrical behavior. The high density of extended defects and grain boundaries causes the localization of conduction electrons over the entire investigated temperature range.

Low temperature dielectric properties and NTCR behavior of the BaFe0.5Nb0.5O3 double perovskite ceramic

2020 ◽  
Vol 22 (5) ◽  
pp. 2986-2998 ◽  
Author(s):  
Vijay Khopkar ◽  
Balaram Sahoo
Keyword(s):  
Dielectric Properties ◽  
Low Temperature ◽  
Temperature Coefficient ◽  
Negative Temperature Coefficient ◽  
Double Perovskite ◽  
Negative Temperature ◽  
Lead Free ◽  
Temperature Coefficient Of Resistance ◽  
Perovskite Ceramic

The microstructure and low-temperature dielectric properties of lead-free BaFe0.5Nb0.5O3 ceramics exhibiting a negative temperature coefficient of resistance behavior.

Tellurium-modified silicon nanowires with a large negative temperature coefficient of resistance

2012 ◽  
Vol 101 (13) ◽  
pp. 133111 ◽  
Author(s):  
Li Yang ◽  
Haiyang Lin ◽  
Tao Wang ◽  
Shiyong Ye ◽  
Mingwang Shao ◽  
...  
Keyword(s):  
Temperature Coefficient ◽  
Silicon Nanowires ◽  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Temperature Coefficient Of Resistance

Negative temperature coefficient of resistance in a crystalline compound

2008 ◽  
Vol 84 (4) ◽  
pp. 47007 ◽  
Author(s):  
Abhishek Pandey ◽  
Chandan Mazumdar ◽  
R. Ranganathan ◽  
Molly De Raychaudhury ◽  
T. Saha-Dasgupta ◽  
...  
Keyword(s):  
Temperature Coefficient ◽  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Crystalline Compound ◽  
Temperature Coefficient Of Resistance

Thermistors as Instruments of Thermometry and Anemometry

1948 ◽  
Vol 29 (10) ◽  
pp. 494-499 ◽  
Author(s):  
Wayne B. Hales
Keyword(s):  
Wind Speed ◽  
Temperature Coefficient ◽  
High Resistance ◽  
Negative Temperature Coefficient ◽  
Bridge Circuit ◽  
Negative Temperature ◽  
Temperature Coefficient Of Resistance ◽  
Ambient Temperatures ◽  
Thermistor Material

Thermistor beads are used as the sensitive elements for measuring temperature and wind speed. Their high resistance makes it unnecessary to correct for the resistance of leads or the change in their resistance due to temperature. Because of the high negative temperature coefficient of resistance of thermistor material slight changes in ambient temperatures caused sufficient changes in the bead resistance to unbalance a bridge circuit and thereby activate a recording milliammeter which had been calibrated to read temperatures. The change in resistance of a hot bead by the wind activated a second milliammeter which was calibrated to read wind speed.

Sign in / Sign up

Export Citation Format

Share Document