Anomalous Ionic Conductance in Carbon Nanotube Nanochannels

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Anomalous conductance quantization in carbon nanotubes.

Conductance measurements of carbon nanotubes containing gated local depletion regions exhibit plateaus as a function of gate voltage, spaced by approximately 1e(2)/h, the quantum of conductance for a single (nondegenerate) mode. Plateau structure is investigated as a function of bias voltage, temperature, and magnetic field. We speculate on the origin of this surprising quantization, which appe...

متن کامل

Conductance Through a Bent Carbon Nanotube

In this thesis a theoretical expression for the conductance through a bent nanotube is derived. The idea is inspired by a recent work by K. Flensberg and C. Markus, in which bent nanotubes are shown to be a prominent candidate for qubit realization [1]. An approximate Hamiltonian for graphene in the vicinity of the high-symmetry K(K′)-points is developed from the tightbinding model. An extensio...

متن کامل

Analysis of ionic conductance of carbon nanotubes.

We use space-charge (SC) theory (also called the capillary pore model) to describe the ionic conductance, G, of charged carbon nanotubes (CNTs). Based on the reversible adsorption of hydroxyl ions to CNT pore walls, we use a Langmuir isotherm for surface ionization and make calculations as a function of pore size, salt concentration c, and pH. Using realistic values for surface site density and...

متن کامل

Zero-bias conductance in carbon nanotube quantum dots.

We present numerical renormalization group calculations for the zero-bias conductance of quantum dots made from semiconducting carbon nanotubes. These explain and reproduce the thermal evolution of the conductance for different groups of orbitals, as the dot-lead tunnel coupling is varied and the system evolves from correlated Kondo behavior to more weakly correlated regimes. For integer fillin...

متن کامل

Chemically induced conductance switching in carbon nanotube circuits.

The chemical reactivity of carbon nanotubes in H2SO4 is investigated using individual, single-walled carbon nanotubes (SWNTs) incorporated into electronic devices. Exploiting the device conductance as a sensitive indicator of chemical reactions, discrete oxidation and reduction events can be clearly observed. During oxidation, a SWNT opens circuits to a nanometer-scale tunnel junction with resi...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Biophysical Journal

سال: 2017

ISSN: 0006-3495

DOI: 10.1016/j.bpj.2016.11.846