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We present a linear-response theory for the thermopower of a single-electron transistor consisting of a superconducting island weakly coupled to two normal-conducting leads (NSN SET). The thermopower shows oscillations with the same…

介观与纳米尺度物理 · 物理学 2009-11-11 M. Turek , J. Siewert , K. Richter

Single electron tunneling into small superconducting islands is sensitive to the gap energy of the excitations created in the process and, hence, depends on the electron number parity. At low temperature the properties of the system are…

凝聚态物理 · 物理学 2009-10-22 Gerd Schön , A. D. Zaikin

We present a superconducting device showing a clear parity effect in the number of electrons, even when there is, on average, a single nonequilibrium quasiparticle present and the parity of the island switches due to quasiparticles…

介观与纳米尺度物理 · 物理学 2019-07-17 E. T. Mannila , V. F. Maisi , H. Q. Nguyen , C. M. Marcus , J. P. Pekola

We have made a systematic investigation of charge transport in 1D chains of Josephson junctions where the characteristic Josephson energy is much less than the single-island Cooper-pair charging energy, $E_\mathrm{J}\ll E_{CP}$. Such chains…

超导电性 · 物理学 2015-09-30 K. Cedergren , S. Kafanov , J-L. Smirr , J. H. Cole , T. Duty

We present a comprehensive study of thermoelectric transport properties of a quantum nanoelectromechanical system (NEMS) described by a single-electron-transistor (SET) coupled to a quantum nanomechanical resonator (NR). The effects of a…

介观与纳米尺度物理 · 物理学 2015-01-12 Hangbo Zhou , Juzar Thingna , Jian-Sheng Wang , Baowen Li

I discuss thermoelectric properties of a quantum dot coupled to one normal and one superconducting lead in the presence of Kondo effect and Andreev scattering. I will focus on conductance, thermal conductance, thermopower and related…

介观与纳米尺度物理 · 物理学 2008-10-07 Mariusz Krawiec

We report the effect on the superconducting transition temperature (Tc) of a Nb film proximity coupled to the synthetic antiferromagnet Fe/{Cr/Fe}_(N-1). We find that there is a parity dependence of Tc on the total number of Fe layers, N;…

超导电性 · 物理学 2008-08-04 J. W. A. Robinson , Gabor Halasz , M. G. Blamire

We study the electric and thermoelectric transport properties of correlated quantum dots coupled to two ferromagnetic leads and one superconducting electrode. Transport through such hybrid devices depends on the interplay of…

介观与纳米尺度物理 · 物理学 2015-06-19 Krzysztof P. Wojcik , Ireneusz Weymann

We theoretically study the tunnel magnetoresistance(TMR) of ferromagnet / superconductor / ferromagnet single-electron tunneling transistors with a special attention to the parity effect. It is shown that in the plateau region, there is no…

超导电性 · 物理学 2009-11-07 Hiroshi Imamura , Yasuhiro Utsumi , Hiromichi Ebisawa

Single electron tunneling into small superconducting islands is sensitive to the gap energy of the excitations created in the process and, hence, depends on the parity of the electron number in the island. We study these effects by…

凝聚态物理 · 物理学 2016-08-31 J. Siewert , Gerd Schön , Andrei D. Zaikin

The superconducting proximity effect is known to modify transport properties of hybrid normal--superconducting structures. In addition to changing electrical and thermal transport separately, it alters the thermoelectric effects. Changes to…

超导电性 · 物理学 2007-05-23 Pauli Virtanen , Tero T. Heikkila

Interplay of cotunneling and single-electron tunneling in a thermally isolated single-electron transistor (SET) leads to peculiar overheating effects. In particular, there is an interesting crossover interval where the competition between…

介观与纳米尺度物理 · 物理学 2010-11-25 M. A. Laakso , T. T. Heikkilä , Yuli V. Nazarov

We investigate the thermoelectric properties of a quantum dot coupled to ferromagnetic and superconducting electrodes. The combination of spin polarized tunneling at the ferromagnetic-quantum dot interface and the application of an external…

介观与纳米尺度物理 · 物理学 2016-08-10 Sun-Yong Hwang , Rosa Lopez , David Sanchez

We consider a single-electron transistor (SET) whose central island is a nanomechanical oscillator. The gate capacitance of the SET depends on the mechanical displacement, thus, the vibrations of the island vibrations may strongly influence…

介观与纳米尺度物理 · 物理学 2009-11-10 N. M. Chtchelkatchev , W. Belzig , C. Bruder

We show that a huge thermoelectric effect can be observed by contacting a superconductor whose density of states is spin-split by a Zeeman field with a ferromagnet with a non-zero polarization. The resulting thermopower exceeds $k_B/e$ by a…

超导电性 · 物理学 2014-02-10 A. Ozaeta , P. Virtanen , F. S. Bergeret , T. T. Heikkilä

We present a method to measure the critical temperature of the island of a superconducting single electron transistor. The method is based on a sharp change in the slope of the zero-bias conductance as a function of temperature. We have…

介观与纳米尺度物理 · 物理学 2009-11-13 J. J. Toppari , T. Kühn , A. P. Halvari , G. S. Paraoanu

We argue that at sufficiently low temperatures T superconducting parity effect may strongly influence equilibrium persistent currents (PC) in isolated superconducting nanorings containing a weak link with few conducting modes. For a single…

介观与纳米尺度物理 · 物理学 2009-11-10 Sergei V. Sharov , Andrei D. Zaikin

The fundamental property of most single-electron devices with quasicontinuous quasiparticle spectrum on the island is the periodicity of their transport characteristics in the gate voltage. This property is robust even with respect to…

介观与纳米尺度物理 · 物理学 2014-11-11 S. A. Fedorov , A. E. Korolkov , N. M. Chtchelkatchev , O. G. Udalov , I. S. Beloborodov

Utilizing the non-coherent quantum transport formalism, we investigate thermoelectric performance across dissipative superlattice configurations in the linear regime of operation. Using the {\it{dissipative}} non-equilibrium Green's…

介观与纳米尺度物理 · 物理学 2020-12-30 Pankaj Priyadarshi , Bhaskaran Muralidharan

We discuss the temperature-dependent thermoelectric transport properties of semiconductor nanostructures comprising a quantum dot coupled to quantum wires: the thermal dependence of the electrical conductance, thermal conductance, and…

介观与纳米尺度物理 · 物理学 2021-02-17 D. F. Aranguren-Quintero , E. Ramos , J. Silva-Valencia , M. S. Figueira , L. N. Oliveira , R. Franco
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