Flux-periodicity crossover from h/2e to h/e in aluminium nano-loops
Flux-periodicity crossover from h/2e to h/e in aluminium nano-loops
复制标题
铝纳米环中从 h/2e 到 h/e 的通量周期交叉
DOI:
10.1088/1742-6596/969/1/012063
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发表时间:
2018
期刊:
影响因子:
--
通讯作者:
Y. Yeshurun
中科院分区:
文献类型:
--
作者:
C. Espy;O. J. Sharon;J. Braun;R. Garreis;F. Strigl;A. Shaulov;P. Leiderer;E. Scheer;Y. Yeshurun
We study the magnetoresistance of aluminium'double-networks' formed by connecting the vertexes of nano-loops with relatively long wires, creating two interlaced subnetworks of small and large loops (SL and LL, respectively). Far below the critical temperature, Aharonov-Bohm like quantum interference effects are observed for both the LL and the SL subnetworks. When approaching T c, both exhibit the usual Little-Parks oscillations, with periodicity of the superconducting flux quantum Φ 0= h/2e. For one sample, with a relatively large coherence length, ξ, at temperatures very close to T c, the Φ 0 periodicity of the SL disappears, and the waveform of the first period is consistent with that predicted recently for loops with a size a< ξ, indicating a crossover to 2Φ 0 periodicity.
DOI:
--
发表时间:
1996
期刊:
影响因子:
--
作者:
V. Bruyndoncx;C. Strunk;V. Moshchalkov;C. Haesendonck;Y. Bruynseraede
通讯作者:
Y. Bruynseraede
DOI:
--
发表时间:
2011
影响因子:
11.1
作者:
N. Staley;Y. Liu
通讯作者:
Y. Liu
影响因子:
4.6
作者:
O. Sharon;A. Shaulov;J. Berger;A. Sharoni;Y. Yeshurun
通讯作者:
Y. Yeshurun