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We report transport properties of single-crystalline Pd$_{3}$Bi$_{2}$S$_{2}$, which has been predicted to host an unconventional electronic phase of matter beyond three-dimensional Dirac and Weyl semimetals. Similar to several topological…

Materials Science · Physics 2018-04-27 Shubhankar Roy , Arnab Pariari , Ratnadwip Singha , Biswarup Satpati , Prabhat Mandal

A Mn-porphyrin was contacted on Au(111) in a low-temperature scanning tunneling microscope (STM). Differential conductance spectra show a zero-bias resonance that is due to an underscreened Kondo effect according to many-body calculations.…

We propose a practical realization of a field-effect transistor for phonons. Our device is based on a single ionic polymeric molecule and it gives modulations as large as -25% in the thermal conductance for feasible temperatures and…

Mesoscale and Nanoscale Physics · Physics 2010-06-30 Marcos G. Menezes , Aldilene Saraiva-Souza , Jordan Del Nero , Rodrigo B. Capaz

The two-dimensional atomically thin insulator hexagonal boron nitride (h-BN) constitutes a new paradigm in tunnel based devices. A large band gap along with its atomically flat nature without dangling bonds or interface trap states makes it…

Mesoscale and Nanoscale Physics · Physics 2014-11-14 André Dankert , M. Venkata Kamalakar , Abdul Wajid , R. S. Patel , Saroj P. Dash

We carry out a comprehensive theoretical and experimental study of charge injection in Poly(3-hexylthiophene) (P3HT) to determine the most likely scenario for metal-insulator transition in this system. We calculate the optical absorption…

Materials Science · Physics 2007-05-23 N. Sai , Z. Q. Li , M. C. Martin , D. N. Basov , M. Di Ventra

We have studied the electrical field induced conductance transition in thin film of Perylenetetracarboxylic dianhydride sandwiched between two metal electrodes, from an insulating state to conducting state with a high ON-OFF ratio in those…

Other Condensed Matter · Physics 2007-05-23 Ruchi Agrawal , Subhasis Ghosh

It is often intriguing experimentally to take stock of how conformational changes in the device configuration may impact the overall charge transport behavior of single-molecule junctions. Based on the allied approach of density functional…

Mesoscale and Nanoscale Physics · Physics 2020-02-06 Talem Rebeda Roy , Arijit Sen

Thermal switching materials, whose thermal conductivity can be controlled externally, show great potential in contemporary thermal management. Manipulating thermal transport properties through magnetic fields has been accomplished in…

An electrode contact-related mechanism for the operational instability of organic electronic devices is proposed and confirmed via observation of a water-induced change in charge-injection barrier eights at the…

Applied Physics · Physics 2020-01-28 Ryo Nouchi

Transport through molecular devices with strong coupling to a single vibrational mode is considered in the case where the vibration is damped by coupling to the environment. We focus on the weak tunneling limit, for which a rate equation…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Stephan Braig , Karsten Flensberg

We study single-electron transport in a three-ion molecule with strong uniaxial anisotropy and in the presence of a transverse magnetic field. Two magnetic ions are connected to each other through a third, nonmagnetic ion. The magnetic ions…

Mesoscale and Nanoscale Physics · Physics 2014-05-12 Javier I. Romero , Eduardo R. Mucciolo

The electronic conduction of a novel, three-terminal molecular architecture, analogous to a heterojunction bipolar transistor is studied. In this architecture, two diode arms consisting of donor-acceptor molecular wires fuse through a ring,…

Mesoscale and Nanoscale Physics · Physics 2009-11-13 Haiying He , Ravindra Pandey , Shashi P. Karna

In a straightforward application of molecular nanospintronics to quantum computing, single-molecule spin transistors can be used to measure and control nuclear spin qubits. A jump in the conductance occurs when the electronic spin inverts…

Mesoscale and Nanoscale Physics · Physics 2018-01-12 Salvador Cardona-Serra , Alejandro Gaita-Ariño , Maria Stamenova , Stefano Sanvito

We have proposed the phenomenological description of polarization switching peculiarities in ferroelectric semiconductors with charged defects and prevailing extrinsic conductivity. Exactly we have modified Landau-Ginsburg approach shown…

Materials Science · Physics 2009-11-10 Anna N. Morozovska , Eugeny A. Eliseev

We have studied electrical transport as a function of carrier density, temperature and bias in multi-terminal devices consisting of hexagonal boron nitride (h-BN) encapsulated titanium trisulfide (TiS$_3$) sheets. Through the encapsulation…

A microscopic physical analysis of the various resistive effects involved in the electronic detection of single biomolecules in a nanopore of a MoS2 nanoribbon is presented. The analysis relies on a combined experimental-theoretical…

Mesoscale and Nanoscale Physics · Physics 2020-04-23 Mingye Xiong , Michael Graf , Nagendra Athreya , Aleksandra Radenovic , Jean-Pierre Leburton

Devices made of few molecules constitute the miniaturization limit that both inorganic and organic-based electronics aspire to reach. However, integration of millions of molecular junctions with less than 100 molecules each has been a long…

Mesoscale and Nanoscale Physics · Physics 2013-02-11 Kacem Smaali , Nicolas Clement , Gilles Patriarche , Dominique Vuillaume

Graphene/hexagonal boron nitride (hBN) moir\'e superlattices have attracted interest for use in the study of many-body effects and fractal physics in Dirac fermion systems. Many exotic transport properties have been intensively examined in…

Mesoscale and Nanoscale Physics · Physics 2020-04-22 Takuya Iwasaki , Shu Nakaharai , Yutaka Wakayama , Kenji Watanabe , Takashi Taniguchi , Yoshifumi Morita , Satoshi Moriyama

Interfacial electron transfer (IET) dynamics in 1,1'-dioctadecyl-3, 3, 3', 3'-tetramethylindodicarbocyanine (DiD) dye molecules / indium tin oxide (ITO) film system have been probed at the ensemble and single-molecule level by recording the…

Atomic and Molecular Clusters · Physics 2017-09-13 Guofeng Zhang , Liantuan Xiao , Ruiyun Chen , Yan Gao , Xiaobo Wang , Suotang Jia

We report the study of single dangling bonds (DB) on the hydrogen terminated silicon (100) surface using a low temperature scanning tunneling microscope (LT-STM). By investigating samples prepared with different annealing temperatures, we…