Origin of the negative temperature coefficient of resistivity in the half-Heusler antimonides LuNiSb and YPdSb

2021 ◽  
Vol 103 (17) ◽  
Author(s):  
Daniel Gnida ◽  
Kamil Ciesielski ◽  
Dariusz Kaczorowski
Keyword(s):  
Temperature Coefficient ◽  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Temperature Coefficient Of Resistivity

Design for high-performance functional composite thermistor materials by glass/ceramic composing

1999 ◽  
Vol 14 (7) ◽  
pp. 2993-2996 ◽  
Author(s):  
D. J. Wang ◽  
J. Qiu ◽  
Z. L. Gui ◽  
L. T. Li
Keyword(s):  
Temperature Coefficient ◽  
Glass Ceramic ◽  
High Performance ◽  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Positive Temperature Coefficient ◽  
Positive Temperature ◽  
Functional Composite ◽  
Performance Functional ◽  
Temperature Coefficient Of Resistivity

A negative temperature coefficient–positive temperature coefficient (NTC-PTC) composite thermistor with high performance was designed by glass/ceramic composing. The material exhibited low resistivity and a large negative temperature coefficient of resistivity. The minimum resistivity was the magnitude of 102 Ω cm, and the negative temperature coefficient of resistivity was better than −3% °C−1. The results showed that the large negative temperature coefficient of resistivity was closely related to the glass phase, and the NTC-PTC functional composite material was a kind of grain-boundary–controlled material.

Glassy magnetic state and negative temperature coefficient of resistivity in Mn3+δIn

2020 ◽  
Vol 102 (21) ◽  
Author(s):  
Snehashish Chatterjee ◽  
Prabir Dutta ◽  
Saurav Giri ◽  
Subham Majumdar ◽  
Surasree Sadhukhan ◽  
...  
Keyword(s):  
Temperature Coefficient ◽  
Negative Temperature Coefficient ◽  
Magnetic State ◽  
Negative Temperature ◽  
Temperature Coefficient Of Resistivity

Resistivity of Thin Films of MoSi2–Si Composites

2011 ◽  
Vol 485 ◽  
pp. 265-268 ◽  
Author(s):  
Shinya Hikita ◽  
Teppei Hayashi ◽  
Yuuki Sato ◽  
Shinzo Yoshikado
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Temperature Coefficient ◽  
Negative Temperature Coefficient ◽  
Negative Temperature ◽  
Hexagonal Structure ◽  
Molar Ratio ◽  
Radio Frequency Magnetron Sputtering ◽  
Unknown Structure ◽  
Temperature Coefficient Of Resistivity

Thin films of the composite of molybdenum silicate (MoSi2) and silicon (Si) were fabricated by radio frequency magnetron sputtering using a target made of a powder mixture of MoSi2 and Si. The composite thin film consisted of two types of molybdenum silicate with hexagonal and unknown crystal structures. The temperature dependence of the resistivity of a thin film was measured using the four-probe method. The sign of the temperature coefficient of the resistivity changed from positive to negative with increasing molar ratio of Si to Mo. It was suggested that molybdenum silicate with the hexagonal structure had both positive and negative temperature coefficients of resistivity, whereas the unknown structure showed only a negative temperature coefficient of resistivity.

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