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We report on experimental results for the conductance of metallic single-electron transistors as a function of temperature, gate voltage and dimensionless conductance. In contrast to previous experiments our transistor layout allows for a…

介观与纳米尺度物理 · 物理学 2009-11-07 C. Wallisser , B. Limbach , P. vom Stein , R. Schaefer , C. Theis , G. Goeppert , H. Grabert

Tunneling of single electrons has been thoroughly studied both theoretically and experimentally during last ten years. By the present time the basic physics is well understood, and creation of useful single-electron devices becomes the…

凝聚态物理 · 物理学 2007-05-23 Alexander N. Korotkov

In mesoscopic and nanoscale systems at low temperatures, charge carriers are typically not in thermal equilibrium with the surrounding lattice. The resulting, non-equilibrium dynamics of electrons has only begun to be explored.…

介观与纳米尺度物理 · 物理学 2015-12-08 Tineke L. van den Berg , Fredrik Brange , Peter Samuelsson

To elucidate the geometric structure of the putative room temperature superconductor, carbonaceous sulfur hydride, at high pressure, we present the results of an extensive computational structure search of bulk C-S-H at 250 gigapascals.…

超导电性 · 物理学 2024-12-05 Moritz Gubler , José A. Flores-Livas , Anton Kozhevnikov , Stefan Goedecker

We report on transport measurement performed on a room-temperature-operating ultra-small Coulomb blockade devices with a silicon island of sub-5nm. The charge stability at 300K exhibits a substantial change in slopes and diagonal size of…

介观与纳米尺度物理 · 物理学 2015-06-03 S. J. Shin , J. J. Lee , H. J. Kang , J. B. Choi , S. -R. Eric Yang , Y. Takahashi , D. G. Hasko

The temperature dependence of the I-V characteristics of many single-electron tunneling devices enable thermometer operation of these systems. We investigate two normal conducting kinds of them, {\sl (a)} a single junction in a…

凝聚态物理 · 物理学 2007-05-23 H. -O. Müller , A. Hädicke , W. Krech

The operation of the primary Coulomb blockade thermometer (CBT) is based on a measurement of bias voltage dependent conductance of arrays of tunnel junctions between normal metal electrodes. Here we report on a comparison of a CBT with a…

介观与纳米尺度物理 · 物理学 2015-05-19 Matthias Meschke , Jost Engert , Dieter Heyer , Jukka P. Pekola

In single-molecule transistors, we observe inelastic cotunneling features that correspond energetically to vibrational excitations of the molecule, as determined by Raman and infrared spectroscopy. This is a form of inelastic electron…

介观与纳米尺度物理 · 物理学 2007-05-23 L. H. Yu , Z. K. Keane , J. W. Ciszek , L. Cheng , M. P. Stewart , J. M. Tour , D. Natelson

We model a Superconducting Single-Electron Transistor operating by repulsive interactions. The device consists of a ring of Hubbard clusters, placed between electrodes and capacitively coupled to a gate potential. In each cluster, a pair of…

超导电性 · 物理学 2009-11-10 Enrico Perfetto , Michele Cini

\b{eta}-Ga2O3 has attracted considerable interest in recent years for high power electronics, where thermal properties of \b{eta}-Ga2O3 play a critical role. The thermal conductivity of \b{eta}-Ga2O3 is expected to be three-dimensionally…

材料科学 · 物理学 2019-02-20 Puqing Jiang , Xin Qian , Xiaobo Li , Ronggui Yang

A long-standing problem of observing Room Temperature Superconductivity is finally solved by a novel approach. Instead of increasing the critical temperature Tc of a superconductor, the temperature of the room was decreased to an…

超导电性 · 物理学 2020-04-02 Ivan Timokhin , Artem Mishchenko

We report on a new type of single-electron transistor (SET) comprising two highly resistive Cr thin-film strips (~ 1um long) connecting a 1 um-long Al island to two Al outer electrodes. These resistors replace small-area oxide tunnel…

介观与纳米尺度物理 · 物理学 2009-10-31 V. A. Krupenin , A. B. Zorin , D. E. Presnov , M. N. Savvateev , J. Niemeyer

The high-frequency transconductance and current noise of top-gated single carbon nanotube transistors have been measured and used to investigate hot electron effects in one-dimensional transistors. Results are in good agreement with a…

介观与纳米尺度物理 · 物理学 2010-05-13 J. Chaste , E. Pallecchi , P. Morfin , G. Feve , T. Kontos , J. -M. Berroir , P. Hakonen , B. Placais

We Have developed the concept of a new kind of single-electron transistor in which the transport of the electron through a quantum wire is controlled by charged quantum rings. Using a 2D harmonic potential as the transverse constraint, we…

介观与纳米尺度物理 · 物理学 2016-10-24 Ali Hosseinzadeh , Shahpoor Saeidian

Monolayer transition metal dichalcogenides (TMDs) provide the most efficient optical gain materials and have potential for making nanolasers with the smallest gain media with lowest energy consumption. But lasing demonstrations based on…

介观与纳米尺度物理 · 物理学 2017-10-25 Yongzhuo Li , Jianxing Zhang , Dandan Huang , Hao Sun , Fan Fan , Jiabi Feng , Zhen Wang , C. Z. Ning

We show that by combining high-k dielectric substrate and high density of charge carriers, Coulomb impurity can be effectively screened, leading to an unprecedented room-temperature mobility of ~150cm2/Vs in monolayer MoS2. The high sample…

We present a scheme and demonstrate measurements of a Coulomb blockade thermometer (CBT) in a microwave transmission setup. The sensor is embedded in an $LCR$ resonator, where $R$ is determined by the conductance of the junction array of…

介观与纳米尺度物理 · 物理学 2021-11-30 Florian Blanchet , Yu-Cheng Chang , Bayan Karimi , Joonas T. Peltonen , Jukka P. Pekola

The Coulomb Blockade Thermometer (CBT) is a primary thermometer for cryogenic temperatures, with demonstrated operation from below 1 mK up to 60 K. Its performance as a primary thermometer has been verified at temperatures from 20 mK to 200…

Single molecule spectroscopy aims at unveiling often hidden but potentially very important contributions of single entities to a system's ensemble response. Albeit contributing tremendously to our ever growing understanding of molecular…

化学物理 · 物理学 2017-12-19 Matz Liebel , Costanza Toninelli , Niek F. van Hulst

We demonstrate that by means of a local top-gate current oscillations can be observed in extended, monolayered films assembled from monodisperse metal nanocrystals -- realizing transistor function. The oscillations in this metal-based…

材料科学 · 物理学 2015-07-20 Yuxue Cai , Jan Michels , Julien Bachmann , Christian Klinke