Abstract
The vortex propagation has been investigated in Nb superconductors with one dimension spacing-graded density of submicrometer-scaled holes in this research. A rectification effect can be discerned because the applied ac is transformed into a net dc voltage. These results demonstrate that the rectification is mainly characterized by the asymmetric pinning landscape and the rectified voltage depends considerably on temperature and the amplitude of applied ac. The dc voltage increases steeply up to the maximum value and then decreases to zero dc voltage with the increase of ac. The shape of peaks in the dc voltage signal become steeper and move to higher applied ac regime with the decrease of temperature.
| Original language | English |
|---|---|
| Article number | 09G113 |
| Journal | Journal of Applied Physics |
| Volume | 101 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2007 May 21 |
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All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)
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Properties of vortex propagation in a niobium film with spacing-graded density of pinning sites. / Horng, Lance; Wu, T. C.; Wu, J. C.; Cao, R.; Yang, T. J.
In: Journal of Applied Physics, Vol. 101, No. 9, 09G113, 21.05.2007.Research output: Contribution to journal › Article
TY - JOUR
T1 - Properties of vortex propagation in a niobium film with spacing-graded density of pinning sites
AU - Horng, Lance
AU - Wu, T. C.
AU - Wu, J. C.
AU - Cao, R.
AU - Yang, T. J.
PY - 2007/5/21
Y1 - 2007/5/21
N2 - The vortex propagation has been investigated in Nb superconductors with one dimension spacing-graded density of submicrometer-scaled holes in this research. A rectification effect can be discerned because the applied ac is transformed into a net dc voltage. These results demonstrate that the rectification is mainly characterized by the asymmetric pinning landscape and the rectified voltage depends considerably on temperature and the amplitude of applied ac. The dc voltage increases steeply up to the maximum value and then decreases to zero dc voltage with the increase of ac. The shape of peaks in the dc voltage signal become steeper and move to higher applied ac regime with the decrease of temperature.
AB - The vortex propagation has been investigated in Nb superconductors with one dimension spacing-graded density of submicrometer-scaled holes in this research. A rectification effect can be discerned because the applied ac is transformed into a net dc voltage. These results demonstrate that the rectification is mainly characterized by the asymmetric pinning landscape and the rectified voltage depends considerably on temperature and the amplitude of applied ac. The dc voltage increases steeply up to the maximum value and then decreases to zero dc voltage with the increase of ac. The shape of peaks in the dc voltage signal become steeper and move to higher applied ac regime with the decrease of temperature.
UR - http://www.scopus.com/inward/record.url?scp=34248549728&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34248549728&partnerID=8YFLogxK
U2 - 10.1063/1.2712323
DO - 10.1063/1.2712323
M3 - Article
AN - SCOPUS:34248549728
VL - 101
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 9
M1 - 09G113
ER -