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The stability of molecular junctions under transport is of the utmost importance for the field of molecular electronics. This question is often addressed within the paradigm of current-induced heating of nuclear degrees of freedom or…

Mesoscale and Nanoscale Physics · Physics 2022-12-26 André Erpenbeck , Yaling Ke , Uri Peskin , Michael Thoss

In this paper we report what happens to a pristine oxide junction Pr0.5Ca0.5MnO3/SrTi0.95Nb.05O3 (PCMO/Nb:STO), when it is subjected to cycling of voltage bias of moderate value ({\pm}4V). It is found that the initial cycling leads to…

Materials Science · Physics 2015-05-27 Barnali Ghosh , K. Das , A. K. Raychaudhuri

The nuclear reactions in a plasma system with energy distribution deviated from Maxwellian are proved to have some unique characteristics including those in their product energy spectrum. Based on this, a new nuclear diagnostic scheme for…

Plasma Physics · Physics 2022-11-21 K. Li , Z. Y. Liu , A. D. Liu , B. Qiao

Tunneling metal-insulator-metal (MIM) junctions can exhibit an open-circuit photovoltage (OCPV) response under illumination that may be useful for photodetection. One mechanism for photovoltage generation is hot carrier tunneling, in which…

Mesoscale and Nanoscale Physics · Physics 2023-06-19 Mahdiyeh Abbasi , Shusen Liao , Yunxuan Zhu , Douglas Natelson

In the present work, the current-voltage (I-V) characteristics in a coupled long Josephson junction based on magnesium diboride are studied by establishing a system of equations of phase differences of various inter- and intra-band channels…

Soft Condensed Matter · Physics 2021-03-30 S. P. Chimouriya , B. R. Ghimire , J. H. Kim

Current-biased Josephson junctions can act as detectors of electromagnetic radiation. At optimal conditions, their sensitivity is limited by fluctuations causing stochastic switching from the superconducting to the resistive state. This…

Superconductivity · Physics 2025-04-30 Vladimir M. Krasnov

Using first-principles calculations based on density functional theory combined with the non-equilibrium Green's function approach, the transport behaviors of a single-molecule junction formed by benzenedithiol connected to gold electrodes…

Materials Science · Physics 2022-09-20 Rigao Wang , Feng Shuang , Xiaowen Shi , Mingyan Chen

We performed analytical calculations of the current-voltage and strain-voltage response of the heterostructure like "charged SPM tip electrode / gap / ionic-semiconductor film" caused by the local changes of (a) ions concentration…

Materials Science · Physics 2010-08-17 A. N. Morozovska , E. A. Eliseev , S. L. Bravina , S. V. Kalinin

Designing tunneling junctions with abrupt on-off characteristics and high current densities is critical for many different devices including backward diodes and tunneling field effect transistors (TFETs). It is possible to get a sharp, high…

Mesoscale and Nanoscale Physics · Physics 2014-11-03 Sapan Agarwal , Eli Yablonovitch

Plasma simulations are powerful tools for understanding fundamental plasma science phenomena and for process optimization in applications. To ensure their quantitative accuracy, they must be validated against experiments. In this work, such…

Magnetic tunnel junctions (MTJs) have attracted strong research interest within the last decades due to their potential use as nonvolatile memory such as MRAM as well as for magnetic logic applications. Half-metallic magnets (HMMs) have…

Materials Science · Physics 2022-09-05 T. Aull , E. Şaşıoğlu , N. F. Hinsche , I. Mertig

We demonstrate a controllable p$-$n junction in a three$-$dimensional Dirac semimetal (DSM) Cd$_3$As$_2$ nanowire with two recessed bottom gates. The device exhibits four different conductance regimes with gate voltages, the unipolar (n$-$n…

Conduction electrons in metallic nano-objects ($\rm 1\,nm = 10^{-9}\, m$) behave as mobile negative charges confined by a fixed positively-charged background, the atomic ions. In many respects, this electron gas displays typical plasma…

Mesoscale and Nanoscale Physics · Physics 2019-06-20 Giovanni Manfredi , Paul-Antoine Hervieux , Jérôme Hurst

We couple a proximity Josephson junction to a Joule-heated normal metal film and measure its electron temperature under steady state and nonequilibrium conditions. With a timed sequence of heating and temperature probing pulses, we are able…

Mesoscale and Nanoscale Physics · Physics 2019-03-26 Libin Wang , Olli-Pentti Saira , Jukka Pekola

The simplicity of single-molecule junctions based on direct bonding of a small molecule between two metallic electrodes make them an ideal system for the study of fundamental questions related to molecular electronics. Here we study the…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 O. Tal , M. Kiguchi , W. H. A. Thijssen , D. Djukic , C. Untiedt , R. H. M. Smit , J. M. van Ruitenbeek

In this paper I discuss the electronic structure and properties of a specific, rather unconventional class of transition metal (TM) compounds, e.g. TM oxides, which formally have unusually high values of the oxidation state, or valence, of…

Strongly Correlated Electrons · Physics 2007-05-23 D. Khomskii

The possibility of using single molecule junctions as electron pumps for energy conversion and storage is considered. It is argued that the small dimensions of these systems enable to make use of unique intra-molecular quantum coherences in…

Quantum Physics · Physics 2015-05-20 Roie Volkovich , Uri Peskin

The escape of a small current-biased Josephson tunnel junction from the zero voltage state in the presence of weak microwave radiation is investigated experimentally at low temperatures. The measurements of the junction switching current…

Superconductivity · Physics 2009-11-07 A. Wallraff , T. Duty , A. Lukashenko , A. V. Ustinov

In a molecular junction (MJ) which connects two electrical leads, electron-phonon coupling has significant effects on the transport properties. However, the MJ is not thermally isolated and the phonons can be coupled to another thermal…

Mesoscale and Nanoscale Physics · Physics 2018-06-20 Amir Eskandari-asl

We study current correlations in a $T$-junction composed of a grounded topological superconductor and of two normal-metal leads which are biased at a voltage $V$. We show that the existence of an isolated Majorana zero mode in the junction…

Mesoscale and Nanoscale Physics · Physics 2015-12-16 Arbel Haim , Erez Berg , Felix von Oppen , Yuval Oreg
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