Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Serhii Shafranjuk"'
Publikováno v:
Low Temperature Physics. 40:191-198
We report on properties of Nb(/Ti)–carbon–(Ti/)Nb junctions fabricated on graphite flakes using e-beam lithography. The devices were characterized at temperatures above 1.8 K where a Josephson current was not observed, but the differential conduc
Publikováno v:
Physical Review Applied. 6
Devices with multiple insulating ($I$), ferromagnetic ($F$), and superconducting ($S$) layers in various configurations have been studied for some time, both in basic research and to exploit quantum effects for improved electronics, and lately have e
Publikováno v:
Nano Letters. 12:3097-3100
Terahertz technology has recently emerged as a highly sought-after and versatile scientific tool in many fields, including medical imaging, security screening, and wireless communication. However, scientific progress has been hindered by the lack of
Autor:
Serhii Shafranjuk
Publikováno v:
The European Physical Journal B. 80:379-393
A resonant chiral tunneling (CT) across a graphene junction (GJ) induced by an external electromagnetic field (EF) is studied. Modulation of the electron and hole wavefunction phases $\varphi$ by the external EF during the CT processes strongly impac
Autor:
B. K. Cooper, Paola Barbara, Christopher Lobb, T. M. Klapwijk, Rupert Lewis, Georgy Fedorov, Serhii Shafranjuk, Yanfei Yang
Publikováno v:
Nano letters. 15(12)
Van Hove singularities (VHSs) are a hallmark of reduced dimensionality, leading to a divergent density of states in one and two dimensions and predictions of new electronic properties when the Fermi energy is close to these divergences. In carbon nan
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 15:944-947
We analyze the performance of a particle detector based on a double-barrier Nb/Al/AlOx/Al/AlOx/Al/Nb junction where the Al trapping layer is embedded between two insulating AlO/sub x/ barriers. Within this layer, a very sharp Andreev bound state (ABS
Autor:
John B Ketterson, Serhii Shafranjuk
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 14:13-21
The switching dynamics of a double-barrier Josephson junction is analyzed as a function of the microscopic properties of its electrodes. In particular, it is found that the nonstationary behavior of the Josephson phase difference is very sensitive to
Publikováno v:
IEEE Transactions on Appiled Superconductivity. 13:1085-1088
Nb/Al/AlO/sub x//Al/AlO/sub x//Al/Nb junctions with high critical current densities, j/sub c/, above 20 kA/cm/sup 2/ were fabricated and characterized. A critical voltage of V/sub c/=1.25 mV and small hysteresis (about 6% of the critical current) at
Publikováno v:
Solid State Communications. 121:457-460
A qubit system exploiting manipulations of the Andreev bound state (ABS) levels in the SINIS junction by applying appropriate bias voltages and transport currents is suggested. The parameters of the SINIS setup may be chosen in such a way that only t
Autor:
Serhii Shafranjuk
Quantization of the magneto-thermoelectric transport is studied when an external d.c. magnetic field is applied to the C/N-knot formed as crossing between a narrow stripe of conducting atomic monolayer C on the one hand, and a metal stripe N on the o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3601670a37c65f63d5615fe962ee46a4
http://arxiv.org/abs/1411.3996
http://arxiv.org/abs/1411.3996