Carrier-concentration dependence of critical superconducting current induced by the proximity effect in silicon

1986 ◽  
Vol 33 (3) ◽  
pp. 2042-2045 ◽  
Author(s):  
T. Nishino ◽  
E. Yamada ◽  
U. Kawabe
2009 ◽  
Vol 152-153 ◽  
pp. 462-465 ◽  
Author(s):  
Maxim Avdeev ◽  
Mansur G. Khusainov ◽  
Yurii N. Proshin ◽  
Sergey Tsarevskii

The proximity effect of the ferromagnetic metal/superconductor (FM/S) bilayers in а external longitudinal magnetic field is considered in the dirty limit. The critical temperature and the superconducting current distribution versus applied magnetic field’s magnitude, film’s thicknesses and a transparency of the contact is calculated, with taking into account аn umklapp processes possibility on the interface of the FM/S contact. It is shown that superconducting current is strictly inhomogeneous and asymmetrical. It is shown also that the current inhomogeneity depends heavily from the FM/S interface transparency.


1996 ◽  
Vol 46 (S2) ◽  
pp. 1119-1120
Author(s):  
N. Katase ◽  
T. Shibauchi ◽  
T. Tamegai ◽  
I. Tsukada ◽  
K. Uchinokura

2007 ◽  
Vol 1035 ◽  
Author(s):  
Zheng Yang ◽  
Maurizio Biasini ◽  
Leelaprasanna J Mandalapu ◽  
Zheng Zuo ◽  
Ward P Beyermann ◽  
...  

AbstractCo and Mn ions were implanted into n-type ZnO thin films with different electron carrier concentrations. X-ray diffraction measurements show that the ZnO:Co and ZnO:Mn thin films are of high crystallinity. From magnetization measurements, ferromagnetism was observed in both n-type ZnO:Co and n-type ZnO:Mn thin films with Curie temperatures well-above room temperature. Furthermore, the electron carrier concentration dependence of the saturated magnetization was measured in both types of thin films, and our results support an electron-mediated mechanism for ferromagnetism in ZnO:Co, as predicted by theory. However, our measurements seem to contradict theory for ZnO:Mn, which only predicts long-range ferromagnetism for p-type mediated material.


2005 ◽  
Vol 98 (9) ◽  
pp. 093714 ◽  
Author(s):  
Youn-Seon Kang ◽  
Lawrence H. Robins ◽  
Anthony G. Birdwell ◽  
Alexander J. Shapiro ◽  
W. Robert Thurber ◽  
...  

Sign in / Sign up

Export Citation Format

Share Document