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Duality transformation between hole arrays and wire networks in superconducting Nb films | | S. K. He
; W. J. Zhang
; H. F. Liu
; G. M. Xue
; B. H. Li
; H. Xiao
; Z. C. Wen
; X. F. Han
; S. P. Zhao
; C. Z. Gu
; X. G. Qiu
; | | Date: |
7 Sep 2011 | | Abstract: | We present transport measurements on superconducting Nb films with periodic
hole arrays.
The arrays are honeycomb and kagom’{e} lattices with edge-to-edge separation
between nearest neighboring holes comparable to the coherence length at
temperature close to $T_{c0}$. Fine structures in the field dependent
resistance $R(H)$ and transition temperature $T_c(H)$ curves are observed in
both arrays. Comparison of experimental data with calculation results shows
that these structures resemble those observed in wire networks with triangular
and $T_3$ symmetries, whose dual are honeycomb and kagom’{e}, respectively. A
duality transformation between hole arrays and wire networks has been
established. Our results suggest that in these specified periodic hole arrays
the physics associated with the fine structures is dominated by that in wire
networks. | | Source: | arXiv, 1109.1357 | | Services: | Forum | Review | PDF | Favorites | |
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