TY - JOUR
T1 - Suppression of superconductivity in thin Nb nanowires fabricated in the vortex cores of superfluid helium
AU - Gordon, Eugene B.
AU - Bezryadin, Alexey V.
AU - Karabulin, Alexander V.
AU - Matyushenko, Vladimir I.
AU - Khodos, Igor I.
N1 - Funding Information:
This work was supported by the Russian Science Foundation (RSF) , Project #14-13-00574 . A.B. acknowledges support from the NSF Grant No. ECCS-14-08558 . E.B.G. acknowledges support from RFBR , Project #13-03-00788 .
Publisher Copyright:
© 2015 Elsevier B.V.
PY - 2015/7/3
Y1 - 2015/7/3
N2 - Abstract Nanowires of niobium, platinum and indium-lead In88Pb12 alloy with diameters of 4.2, 3.6 and 8 nm, respectively, were grown in quantized vortices of superfluid helium, and the dependences of their resistance on temperature have been studied. Through a detailed comparison of these dependences we present evidence that superconducting niobium wires allow a high rate of quantum phase slip. This phase slippage leads to a phase transition to an insulating state at T → 0.
AB - Abstract Nanowires of niobium, platinum and indium-lead In88Pb12 alloy with diameters of 4.2, 3.6 and 8 nm, respectively, were grown in quantized vortices of superfluid helium, and the dependences of their resistance on temperature have been studied. Through a detailed comparison of these dependences we present evidence that superconducting niobium wires allow a high rate of quantum phase slip. This phase slippage leads to a phase transition to an insulating state at T → 0.
KW - Superconductivity
KW - Superfluid helium
KW - Thin nanowires
KW - Vortices
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U2 - 10.1016/j.physc.2015.06.010
DO - 10.1016/j.physc.2015.06.010
M3 - Article
AN - SCOPUS:84934299540
VL - 516
SP - 44
EP - 49
JO - Physica C: Superconductivity and its Applications
JF - Physica C: Superconductivity and its Applications
SN - 0921-4534
M1 - 1252879
ER -