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It is shown that the noise-limited charge sensitivity of a single-electron transistor using superconductors (of either $SISIS$ or $NISIN$ type) operating near the threshold of quasiparticle tunneling, can be considerably higher than that of…

Condensed Matter · Physics 2009-10-28 Alexander N. Korotkov

We have measured the current-voltage characteristics of small-capacitance single Josephson junctions at low temperatures (T < 0.04 K), where the strength of the coupling between the single junction and the electromagnetic environment was…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Michio Watanabe , David B. Haviland

We present an experimental realization of a Coulomb blockade refrigerator (CBR) based on a single - electron transistor (SET). In the present structure, the SET island is interrupted by a superconducting inclusion to permit charge transport…

Mesoscale and Nanoscale Physics · Physics 2015-04-29 A. V. Feshchenko , J. V. Koski , J. P. Pekola

We investigate the transport properties of a new class of ratchets. The device is constructed by applying an ac voltage to the metallic single electron tunneling transistor, and a net transport current is induced by the time-dependent…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Xiao-hui Wang , Tobias Junno , Sven-Bertil Carlsson , Claes Thelander , Lars Samuelson

We study conductance of a single electron transistor (SET) with a ferroelectric (or dielectric) layer placed in the gate capacitor. We assume that ferroelectric (FE) has a retarded response with arbitrary relaxation time. We show that in…

Mesoscale and Nanoscale Physics · Physics 2015-12-02 O. G. Udalov , N. M. Chtchelkatchev , S. A. Fedorov , I. S. Beloborodov

We report electronic transport on n-type silicon Single Electron Transistors (SETs) fabricated in Complementary Metal Oxide Semiconductor (CMOS) technology. The n-MOSSETs are built within a pre-industrial Fully Depleted Silicon On Insulator…

We evaluate the detector nonideality (and energy sensitivity) of a normal-state single-electron transistor (SET) in the cotunneling regime in a two-charge-state approximation. For small conductances and at zero temperature, the SET's…

Mesoscale and Nanoscale Physics · Physics 2015-06-24 Alec Maassen van den Brink

Single Electron Transistors (SETs) are nanoscale electrometers of unprecedented sensitivity, and as such have been proposed as read-out devices in a number of quantum computer architectures. We show that the functionality of a standard SET…

Mesoscale and Nanoscale Physics · Physics 2007-08-01 Vincent I. Conrad , Andrew D. Greentree , Lloyd C. L. Hollenberg

We study a single electron transistor (SET) based upon a II-VI semiconductor quantum dot doped with a single Mn ion. We present evidence that this system behaves like a quantum nanomagnet whose total spin and magnetic anisotropy depend…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 J. Fernandez-Rossier , R. Aguado

Radio-frequency reflectometry in silicon single-electron transistors (SETs) is presented. At low temperatures (<4 K), in addition to the expected Coulomb blockade features associated with charging of the SET dot, quasi-periodic oscillations…

Mesoscale and Nanoscale Physics · Physics 2015-05-30 B. J. Villis , A. O. Orlov , X. Jehl , G. L. Snider , P. Fay , M. Sanquer

We incorporate an Al-AlO_x-Al single-electron transistor as the gate of a narrow (~100 nm) metal-oxide-semiconductor field-effect transistor (MOSFET). Near the MOSFET channel conductance threshold, we observe oscillations in the conductance…

Mesoscale and Nanoscale Physics · Physics 2011-11-10 L. Sun , K. R. Brown , B. E. Kane

A simple and highly reproducible single electron transistor (SET) has been fabricated using gated silicon nanowires. The structure is a metal-oxide-semiconductor field-effect transistor made on silicon-on-insulator thin films. The channel…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Hofheinz , X. Jehl , M. Sanquer , G. Molas , M. Vinet , S. Deleonibus

Single-electron transistors have been proposed to be used as a read-out device for Cooper pair charge qubits. Here we show that a coupled superconducting transistor at a threshold voltage is much more effective in measuring the state of a…

Superconductivity · Physics 2009-11-07 J. Kinnunen , P. Torma , J. P. Pekola

We have developed a detailed experimental study of a single-electron transistor in a strong tunneling regime. Although weakened by strong charge fluctuations, Coulomb effects were found to persist in all samples including one with the…

Condensed Matter · Physics 2009-10-31 D. Chouvaev , L. S. Kuzmin , D. S. Golubev , A. D. Zaikin

The single electron transistor (SET) offers unparalled opportunities as a nano-scale electrometer, capable of measuring sub-electron charge variations. SETs have been proposed for read-out schema in solid-state quantum computing where…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Vincent I. Conrad , Andrew D. Greentree , David N. Jamieson , Lloyd C. L. Hollenberg

We report the fabrication and electrical characterization of a single electron transistor in a modulation doped silicon/silicon-germanium heterostructure. The quantum dot is fabricated by electron beam lithography and subsequent reactive…

In this paper I study the posibility of inducing a single-electron current by rotating a non-magnetic conducting rod with a small tunnel junction immerse in a uniform magnetic field perpendicular to the plane of motion. I show first, by…

Mesoscale and Nanoscale Physics · Physics 2011-12-09 Gabriel Gonzalez

Quantum dots and single-molecule transistors may exhibit level crossings induced by tuning external parameters such as magnetic field or gate voltage. For Coulomb blockaded devices, this shows up as an inelastic cotunneling threshold in the…

Mesoscale and Nanoscale Physics · Physics 2013-01-10 Chiara Stevanato , Martin Leijnse , Karsten Flensberg , Jens Paaske

Low temperature electron transport measurements of single electron transistors fabricated in advanced CMOS technology with polysilicon gates not only exhibit clear Coulomb blockade behavior but also show a large number of additional…

Mesoscale and Nanoscale Physics · Physics 2014-01-08 Dharmraj Kotekar-Patil , Stefan Jauerneck , David Wharam , Dieter Kern , Xavier Jehl , Romain Wacquez , M. Sanquer

We study the linear conductance of single electron devices showing Coulomb blockade phenomena. Our approach is based on a formally exact path integral representation describing electron tunneling nonperturbatively. The electromagnetic…

Mesoscale and Nanoscale Physics · Physics 2015-06-25 Georg Goeppert , Hermann Grabert