The modified Arrott graph has been used for the determination of the Curie temperature T c . The results have been compared with other resistivity methods. Results support the idea of determination of T c from the temperature dependence of the derivative of longitudinal resistivity. It was shown ...
Metals like silver, copper, and aluminum have many free electrons, making them good conductors with low resistance. However, theirresistivitychanges with temperature. Generally, metals have higherelectrical resistancewhen the temperature increases, while non-metallic substances usually show decreased resistanc...
Y. Zhang, C. Liu, X. Zhu, H.-H. Wen. Ferromagnetism and insulating behavior with a logarithmic temperature dependence of resistivity inPb10−xCux(PO4)6OPb10−xCux(PO4)6O. 2023, arXiv:2308.05786. P. Puphal, M. Y. P. Akbar, M. He...
an is the coefficient of thermal resistivity R0 is the resistance at reference temperature T0 (usually T0=0°C). Ideally, the polynomial equation has n terms, but a simplification is allowed depending on the application, type of metal or alloy used, required accuracy and temperature working rang...
These considerations have been coupled with consideration of alloy resistivity (important for determining eddy current losses) and alloy additions which influence mechanical properties to design an alloy for rotor applications in electric aircraft engines. Magnetostriction considerations are also known to be ...
There are experimental evidences36,37 of graph- ite melting for laser fluences exceeding the threshold of 0.6 J/cm2, with a ruby laser (λ = 694.3 nm) and 30 ns of pulse duration. The melt depth increases almost linearly with the laser fluence and reaches a value of ...
Both thermal expansion coefficient data28 and resistivity measurements29 reveal features in their data near the same temperature. In particular, a recent pressure study demonstrates that this resistivity feature coincides with the eventual stabilization of the long-range magnetic order; as such, it is ...
a, Normalized anomalous Hall resistivity of Mn3Pt(5 nm)/MnPt(t nm)/MAO bilayer heterostructures measured at room temperature. b, Coercivity and exchange bias fields extracted from a. c, Normalized anomalous Hall resistivity of the Mn3Pt(5 nm)/MnPt(10 nm)/MAO heterostructure from 10 to 300...
This general trend of resistivity and TCR versus implantation dose is similar to the one observed in poly Si: one can distinguish a low doping region where the sheet resistance is doping independent and a region where sheet resistance sharply decreases with the increase of doping. We note that ...
13.The Heat and Temperature Variations of Line Process in the P - V Graph With Negative Slope;P-V图中负斜率直线过程热量和温度变化 14.Experimental Research for Resistivity vs.Temperature of Zr-W Cathode;Zr-W阴极电阻率随温度变化的实验研究 ...