scholarly journals Quantum charge fluctuations of a proximitized nanowire

2016 ◽  
Vol 94 (12) ◽  
Author(s):  
Roman M. Lutchyn ◽  
Karsten Flensberg ◽  
Leonid I. Glazman
2005 ◽  
Vol 72 (10) ◽  
Author(s):  
M. Houzet ◽  
D. A. Pesin ◽  
A. V. Andreev ◽  
L. I. Glazman

2016 ◽  
Vol 113 (16) ◽  
pp. 4284-4289 ◽  
Author(s):  
Jie Wu ◽  
Anthony T. Bollinger ◽  
Yujie Sun ◽  
Ivan Božović

Upon doping, cuprates undergo a quantum phase transition from an insulator to a d-wave superconductor. The nature of this transition and of the insulating state is vividly debated. Here, we study the Hall effect in La2-xSrxCuO4 (LSCO) samples doped near the quantum critical point at x ∼ 0.06. Dramatic fluctuations in the Hall resistance appear below TCG ∼ 1.5 K and increase as the sample is cooled down further, signaling quantum critical behavior. We explore the doping dependence of this effect in detail, by studying a combinatorial LSCO library in which the Sr content is varied in extremely fine steps, Δx ∼ 0.00008. We observe that quantum charge fluctuations wash out when superconductivity emerges but can be restored when the latter is suppressed by applying a magnetic field, showing that the two instabilities compete for the ground state.


2000 ◽  
Vol 69 (3) ◽  
pp. 828-835
Author(s):  
Hiroshi Shimada ◽  
Youiti Ootuka ◽  
Shun-ichi Kobayashi ◽  
Shingo Katsumoto ◽  
Akira Endo

2003 ◽  
Vol 91 (10) ◽  
Author(s):  
K. W. Lehnert ◽  
B. A. Turek ◽  
K. Bladh ◽  
L. F. Spietz ◽  
D. Gunnarsson ◽  
...  

1996 ◽  
Vol 03 (01) ◽  
pp. 9-12 ◽  
Author(s):  
ARISATO KAWABATA

Among the electronic properties of metallic fine particles, the phenomena associated with the interparticle electron transfer are not yet well understood. For example, the temperature dependence of granular films often shows clear deviation from that of the activation type, which can be expected from a simple theory. In this respect, the charge neutrality and the quantum charge fluctuations of fine particles are very important problems, and the studies on those problems will be reviewed mainly from theoretical perspectives.


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