scholarly journals Origin of bias-independent conductance plateaus and zero-bias conductance peaks in Bi2Se3/NbSe2 hybrid structures

2017 ◽  
Vol 96 (7) ◽  
Author(s):  
Hui Li ◽  
Tong Zhou ◽  
Jun He ◽  
Huan-Wen Wang ◽  
Huachen Zhang ◽  
...  
Keyword(s):  
Hybrid Structures ◽  
Zero Bias ◽  
Zero Bias Conductance

scholarly journals Generic quantized zero-bias conductance peaks in superconductor-semiconductor hybrid structures

2020 ◽  
Vol 101 (2) ◽  
Author(s):  
Haining Pan ◽  
William S. Cole ◽  
Jay D. Sau ◽  
S. Das Sarma
Keyword(s):  
Hybrid Structures ◽  
Zero Bias ◽  
Zero Bias Conductance

scholarly journals Anomalous Zero-Bias Conductance Peak in a Nb–InSb Nanowire–Nb Hybrid Device

Nano Letters ◽  
2012 ◽  
Vol 12 (12) ◽  
pp. 6414-6419 ◽  
Author(s):  
M. T. Deng ◽  
C. L. Yu ◽  
G. Y. Huang ◽  
M. Larsson ◽  
P. Caroff ◽  
...  
Keyword(s):  
Zero Bias ◽  
Hybrid Device ◽  
Conductance Peak ◽  
Zero Bias Conductance

scholarly journals Theory of point contact spectroscopy in correlated materials

2015 ◽  
Vol 112 (3) ◽  
pp. 651-656 ◽  
Author(s):  
Wei-Cheng Lee ◽  
Wan Kyu Park ◽  
Hamood Z. Arham ◽  
Laura H. Greene ◽  
Philip Phillips
Keyword(s):  
Scattering Length ◽  
Point Contact ◽  
Microscopic Theory ◽  
Effective Density ◽  
Strongly Correlated ◽  
Metallic Electrode ◽  
Zero Bias ◽  
Point Contact Spectroscopy ◽  
Conductance Peak ◽  
Zero Bias Conductance

We developed a microscopic theory for the point-contact conductance between a metallic electrode and a strongly correlated material using the nonequilibrium Schwinger-Kadanoff-Baym-Keldysh formalism. We explicitly show that, in the classical limit, contact size shorter than the scattering length of the system, the microscopic model can be reduced to an effective model with transfer matrix elements that conserve in-plane momentum. We found that the conductance dI/dV is proportional to the effective density of states, that is, the integrated single-particle spectral function A(ω = eV) over the whole Brillouin zone. From this conclusion, we are able to establish the conditions under which a non-Fermi liquid metal exhibits a zero-bias peak in the conductance. This finding is discussed in the context of recent point-contact spectroscopy on the iron pnictides and chalcogenides, which has exhibited a zero-bias conductance peak.

Zero-bias conductance anomaly in graphene dots

2017 ◽  
Vol 56 (6S1) ◽  
pp. 06GE07 ◽  
Author(s):  
Yasushi Kanai ◽  
Mohamed Almokhtar ◽  
Takao Ono ◽  
Yasuhide Ohno ◽  
Kenzo Maehashi ◽  
...  
Keyword(s):  
Zero Bias ◽  
Zero Bias Conductance
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