Electrically driven spin resonance in a bent disordered carbon nanotube
نویسندگان
چکیده
منابع مشابه
Electrically tunable spin polarization in a carbon nanotube spin diode.
We have studied the current through a carbon-nanotube quantum dot with one ferromagnetic and one normal-metal lead. For the values of gate voltage at which the normal lead is resonant with the single available nondegenerate energy level on the dot, we observe a pronounced decrease in the current for one bias direction. We show that this rectification is spin dependent, and that it stems from th...
متن کاملElectrically-driven carbon nanotube-based plasmonic laser on silicon
Photonic signal processing requires efficient on-chip light sources with higher modulation bandwidths. Today’s conventional fastest semiconductor diode lasers exhibit modulation speeds only on the order of a few tens of GHz due to gain compression effects and parasitic electrical capacitances. Here we theoretically show an electrically-driven carbon nanotube (CNT)-based laser utilizing strong l...
متن کاملExtreme harmonic generation in electrically driven spin resonance.
We report the observation of multiple harmonic generation in electric dipole spin resonance in an InAs nanowire double quantum dot. The harmonics display a remarkable detuning dependence: near the interdot charge transition as many as eight harmonics are observed, while at large detunings we only observe the fundamental spin resonance condition. The detuning dependence indicates that the observ...
متن کاملConductance 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 کاملMAGNETISATION AND ELECTRON SPIN RESONANCE STUDIES OF TETRAHEDRAL AMORPHOUS CARBON
The magnetisation and electron spin resonance (ESR) spectrum of two specimens of tetrahedral amorphous carbon (ta-C), deposited from a filtered cathodic arc, were measured over a wide temperature range. The magnetisation was found to consist of superparamagnetic, paramagnetic and diamagnetic contributions. The superparamagnetic contribution resembled that recently found in carbon prepared from ...
متن کاملذخیره 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: Physical Review B
سال: 2014
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.90.195440