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Negative differential conductivity (NDC) is a widely exploited effect in modern electronic components. Here, a proof-of-principle is given for the observation of NDC in a quantum transport device for neutral atoms employing a multi-mode…

Quantum Gases · Physics 2017-08-24 Ralf Labouvie , Bodhaditya Santra , Simon Heun , Sandro Wimberger , Herwig Ott

We report a bi-polar multiple periodic negative differential conductance (NDC) effect on a single cage-shaped Ru nanoparticle measured using scanning tunneling spectroscopy. This phenomenon is assigned to the unique multiply-connected cage…

Mesoscale and Nanoscale Physics · Physics 2012-09-13 Yehonadav Bekenstein , Kathy Vinokurov , Tal J. Levy , Eran Rabani , Uri Banin , Oded Millo

We report on the existence of temperature induced negative differential conductivity (NDC) for electrons in gaseous nitrogen. The important role of superelastic rotational collisional processes in this phenomenon is highlighted. A model…

Chemical Physics · Physics 2019-04-16 M J E Casey , D G Cocks , G J Boyle , M J Brunger , S Dujko , J de Urquijo , R D White

We determine the conditions in which negative differential resistance (NDR) appears in the C$_{60}$-based molecular device of [Phys. Rev. Lett. {\bf 100}, 036807 (2008)] by means of ab-initio electron-transport simulations. Our calculations…

Mesoscale and Nanoscale Physics · Physics 2015-03-17 Frederico D. Novaes , Manuel Cobian , Alberto Garcia , Pablo Ordejon , Hiromu Ueba , Nicolas Lorente

Negative differential conductance (NDC) manifests as a significant characteristic of various underlying physics and transport processes in hybrid superconducting devices. In this work, we report the observation of gate-tunable NDC outside…

Mesoscale and Nanoscale Physics · Physics 2023-06-06 Mingli Liu , Dong Pan , Tian Le , Jiangbo He , Zhongmou Jia , Shang Zhu , Guang Yang , Zhaozheng Lyu , Guangtong Liu , Jie Shen , Jianhua Zhao , Li Lu , Fanming Qu

We have observed tunable negative differential resistance (NDR) in scanning tunneling spectroscopy measurements of a double layer of C60 molecules on a metallic surface. Using a simple model we show that the observed NDR behavior is…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. Grobis , A. Wachowiak , R. Yamachika , M. F. Crommie

Negative differential conductance (NDC), characterized by the decreasing current with increasing voltage, has attracted continuous attention for its various novel applications. The NDC typically exists in a certain range of bias voltages…

Mesoscale and Nanoscale Physics · Physics 2018-04-04 Si-Yu Li , Haiwen Liu , Jia-Bin Qiao , Hua Jiang , Lin He

Negative differential conductance (NDC) is expected to be an essential property to realize fast switching in future electronic devices. We here present a thorough analysis on electron transportability of a simple atomic-scale model…

Materials Science · Physics 2009-11-07 Shigeru Tsukamoto , Masakazu Aono , Kikuji Hirose

One of the ultimate goals of molecular electronics is to create technologies that will complement - and eventually supersede - Si-based microelectronics technologies. To reach this goal, electronic properties that mimic at least some of the…

Mesoscale and Nanoscale Physics · Physics 2015-06-26 Bingqian Xu , Yonatan Dubi

An examination of the properties of many-electron conduction through spin-degenerate systems can lead to situations where increasing the bias voltage applied to the system is predicted to decrease the current flowing through it, for the…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Guy Cohen , Eran Rabani

The negative differential thermal conductance (NDTC) provides the key mechanism for realizing thermal transistors. This exotic effect has been the object of an extensive theoretical investigation, but the implementation is still limited to…

Mesoscale and Nanoscale Physics · Physics 2023-04-17 Shobhit Saheb Dey , Giuliano Timossi , Luigi Amico , Giampiero Marchegiani

Negative differential conductance (NDC) is a non-linear transport phenomenon ubiquitous in molecular nanojunctions. Its physical origin can be the most diverse. In rotationally symmetric molecules with orbitally degenerate many-body states,…

Mesoscale and Nanoscale Physics · Physics 2013-02-13 Andrea Donarini , Sandra Sobczyk , Benjamin Siegert , Milena Grifoni

Behaviour of hot electrons under the influence of dc field in carbon nanotubes is theoretically considered. The study was done semi-classically by solving Boltzmann transport equation with the presence of the hot electrons source to derive…

Mesoscale and Nanoscale Physics · Physics 2016-10-10 M. Amekpewu , K. A. Dompreh , S. Y. Mensah , N. G. Mensah , S. S. Abukari , R. Musah , A. Twum , R. Edziah

We report the creation and characterization of a molecular-scale negative differential conductance (NDC) device by assembling a triangular trimer of 4,5,9,10-tetrabromo-1,3,6,8-tetraazapyrene (TBTAP) molecules on a superconducting Pb(111)…

Mesoscale and Nanoscale Physics · Physics 2025-08-08 Chao Li , Vladislav Pokorný , Prokop Hapala , Martin Žonda , Ping Zhou , Silvio Decurtins , Shi-Xia Liu , Fengqi Song , Rémy Pawlak , Ernst Meyer

The conductance of C60 on Cu(100) is investigated with a low-temperature scanning tunneling microscope. At the transition from tunneling to the contact regime the conductance of C60 adsorbed with a pentagon-hexagon bond rises rapidly to…

Materials Science · Physics 2011-12-12 N. Neel , J. Kroger , L. Limot , T. Frederiksen , M. Brandbyge , R. Berndt

Theoretical results for the ab-plane tunneling conductance in the d-wave model for high Tc superconductors are presented. The d-wave model predicts surface bound states below the maximum gap. A sub-dominant order parameter, stabilized by…

Superconductivity · Physics 2009-10-30 M. Fogelström , D. Rainer , J. A. Sauls

We propose and demonstrate through first-principles calculation a new spin-dependent negative differential resistance (NDR) mechanism in magnetic tunnel junctions (MTJ) with cubic cation disordered crystals (CCDC) AlO$_x$ or…

Materials Science · Physics 2016-05-25 Jun Jiang , X. -G. Zhang , X. F. Han

We study the electron transport properties through a supported organic molecule styrene (C8H8) on an ideal silicon surface Si[111] and probed by a STM-tip. The I-V characteristics and the differential conductance of the molecule are…

Materials Science · Physics 2007-08-22 Samuel E. Baltazar , Mario De Menech , Ulf Saalmann , Aldo H. Romero , Martin E. Garcia

Experimental results for sequential transport through a lateral quantum dot in the regime of spin blockade induced by spin dependent tunneling are compared with theoretical results obtained by solving a master equation for independent…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 M. C. Rogge , F. Cavaliere , M. Sassetti , R. J. Haug , B. Kramer

One challenge in condensed-matter physics is to unravel the interplay between magnetism and superconductivity in copper oxides with a high critical temperature (Tc). Kang et al. claim to have revealed a quantum phase transition from the…

Condensed Matter · Physics 2007-05-23 P. K. Mang , S. Larochelle , M. Greven
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