Temperature dependence of the electrical resistivity of copper at low temperatures

1977 ◽  
Vol 55 (23) ◽  
pp. 2071-2079 ◽  
Author(s):  
P. K. Moussouros ◽  
J. F. Kos

Precise measurements of the electrical resistivity of pure copper samples have disclosed two discontinuities in the temperature dependence of the resistivity. They occur at approximately 6.7 K and near 12.1 K. The second is associated with impurity effects whereas the first appears to be a characteristic of the metal itself. It is similar to the discontinuity previously observed in the temperature dependence of the electrical resistivity of Ag by Kos and independently by Ehrlich and Schriempf and attributed by the former to one-step umklapp processes.

2014 ◽  
Vol 5 (3) ◽  
pp. 982-992 ◽  
Author(s):  
M AL-Jalali

Resistivity temperature – dependence and residual resistivity concentration-dependence in pure noble metals(Cu, Ag, Au) have been studied at low temperatures. Dominations of electron – dislocation and impurity, electron-electron, and electron-phonon scattering were analyzed, contribution of these mechanisms to resistivity were discussed, taking into consideration existing theoretical models and available experimental data, where some new results and ideas were investigated.


1993 ◽  
Vol 07 (01n03) ◽  
pp. 891-894
Author(s):  
M. SHIGA ◽  
H. WADA

The thermal expansion, the electrical resistivity and the specific heat of Mn-rich bcc Cr-Mn alloys have been measured. Distinct negative temperature dependence was observed in the thermal expansion and the resistivity at low temperatures. These anomalies are successfully explained on the basis of the two electronic state model by taking account of a local environment effect. An enhanced specific heat at low temperatures is consistently understood in terms of the proposed model.


2017 ◽  
Vol 521 ◽  
pp. 175-177 ◽  
Author(s):  
L.S. Sharath Chandra ◽  
R. Mondal ◽  
A. Thamizhavel ◽  
S.K. Dhar ◽  
S.B. Roy

1973 ◽  
Vol 51 (15) ◽  
pp. 1602-1618 ◽  
Author(s):  
J. F. Kos

Measurements of the temperature dependence of the electrical resistivity of strained and annealed samples of very pure Ag between 1.4 and 295 °K have permitted the unambiguous and precise determination of the ideal resistivity ρi and of the deviation from Matthiessen's rule ρM. Between 12 and 23 °K, ρi varies as[Formula: see text]and has been attributed to normal and umklapp scattering. Below 10 °K an additional term with a T3.86 ± 0.08 behavior appears and is attributed to one-step umklapp scattering. For samples with [Formula: see text], [Formula: see text] over the entire temperature range. Below 10 °K the variation of ρM with temperature and with defect concentration is described in terms of the theory of phonon-assisted defect scattering proposed by Klemens.


1962 ◽  
Vol 40 (1) ◽  
pp. 98-112 ◽  
Author(s):  
A. Kjekshus ◽  
W. B. Pearson

Low-temperature thermoelectric and electrical resistivity measurements on dilute copper alloys with Cr, Mn, Fe, or Co are reported and discussed, particularly in relation to similar measurements on gold alloys. Both thermoelectric and resistivity measurements have been made for the first time on the same alloys. This paper is a sequel to an earlier paper where the thermoelectric power of "pure" copper was analyzed.


2002 ◽  
Vol 239 (1-3) ◽  
pp. 31-32 ◽  
Author(s):  
Hiroyuki Mitamura ◽  
Yoshitomo Karaki ◽  
Ryuichi Masutomi ◽  
Nao Takeshita ◽  
Akira Yamaguchi ◽  
...  

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