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We report quantum interference effects in the electrical conductance of chemical vapor deposited graphene nanoconstrictions fabricated using feedback controlled electroburning. The observed multimode Fabry-Perot interferences can be…

The paper aims at the development of a digital twin modelling the electrical conductivity of multi-wall carbon nanotube (MWCNT)/polymer nanocomposite. A comparative analysis is conducted for various formulations of boundary conditions in…

材料科学 · 物理学 2020-09-15 N. A. Gudkov , S. V. Lomov , I. S. Akhatov , S. G. Abaimov

Hybrid circuit quantum electrodynamics (QED) involves the study of coherent quantum physics in solid state systems via their interactions with superconducting microwave circuits. Here we present an implementation of a hybrid superconducting…

Bending-mode vibrations of carbon nanotube resonator devices were mechanically detected in air at atmospheric pressure by means of a novel scanning force microscopy method. The fundamental and higher order bending eigenmodes were imaged at…

介观与纳米尺度物理 · 物理学 2012-07-12 D. Garcia-Sanchez , A. San Paulo , M. J. Esplandiu , F. Perez-Murano , L. Forro , A. Aguasca , A. Bachtold

Electrical transport through single-walled carbon nanotubes (SWNTs) is investigated by using the nearest-neighbor tight-binding model coupled with two electron reservoirs. When the SWNT-electrode coupling is not axially symmetric,…

介观与纳米尺度物理 · 物理学 2007-05-23 Junko Takahashi , Shuichi Tasaki

Quantum sensing and computation can be realized with superconducting microwave circuits. Qubits are engineered quantum systems of capacitors and inductors with non-linear Josephson junctions. They operate in the single-excitation quantum…

The $K^{\pi}=8^{-}$ isomeric states and rotational bands in the even-even $N = 150$ isotones with $94 \leqslant Z \leqslant 104$ are investigated by the cranked shell model (CSM) with pairing correlations treated by the…

核理论 · 物理学 2024-10-29 Jun Zhang , Hai-Qian Zhang , T. M. Shneidman , R. V. Jolos , Xiao-Tao He

The screened effective quasione-dimensional interaction potential for charged particles localized on the wall of a single-walled metallic armchair carbon nanotube (CNT) was obtained within the framework of the random phase approximation…

其他凝聚态物理 · 物理学 2010-11-18 Vadym M. Adamyan , Oleksii A. Smyrnov

We demonstrate a novel cross-sectional deformation, called the radial corrugation, of multi-walled carbon nanotubes (MWNTs) under hydrostatic pressure. Theoretical analyses based on the continuum elastic approximation have revealed that…

介观与纳米尺度物理 · 物理学 2015-05-13 Hiroyuki Shima , Motohiro Sato

We present measurements of tunneling magneto-resistance (TMR) in single-wall carbon nanotubes attached to ferromagnetic contacts in the Coulomb blockade regime. Strong variations of the TMR with gate voltage over a range of four conductance…

介观与纳米尺度物理 · 物理学 2015-05-27 Alois Dirnaichner , Milena Grifoni , Andreas Prüfling , Daniel Steininger , Andreas K. Hüttel , Christoph Strunk

Transport through carbon nanotube (CNT) quantum dots (QDs) in a magnetic field is discussed. The evolution of the system from the ultraviolet to the infrared is analyzed; the strongly correlated (SC) states arising in the infrared are…

介观与纳米尺度物理 · 物理学 2015-05-13 M. Mizuno , Eugene H. Kim , G. B. Martins

We study spin relaxation and decoherence caused by electron-lattice and spin-orbit interaction and predict striking effects induced by magnetic fields $B$. For particular values of $B$, destructive interference occurs resulting in ultralong…

介观与纳米尺度物理 · 物理学 2008-06-04 Denis V. Bulaev , Bjoern Trauzettel , Daniel Loss

In weakly buckled carbon nanotubes, the kink is an open, ovalized constriction where molecular-sized analytes and ions can pass. Moreover, in semiconducting tubes, the kink has an electronic bound state within the bandgap. This state is…

介观与纳米尺度物理 · 物理学 2023-03-13 Alex Kleiner

We present a theoretical model for the dynamics of an electron that gets trapped by means of decoherence and quantum interference in the central quantum dot (QD) of a semiconductor nanoring (NR) made of five QDs, between 100 K and 300 K.…

介观与纳米尺度物理 · 物理学 2015-06-02 Ahmed El Halawany , Michael N. Leuenberger

We demonstrate experimentally the creation and measurement of an entangled state between a microscopic two level system and a macroscopic superconducting resonator where their indirect interaction is mediated by an artificial atom, a…

超导电性 · 物理学 2015-05-19 Alexander Kemp , Shiro Saito , William J. Munro , Kae Nemoto , Kouichi Semba

Over-screened Kondo effect is feasible in carbon nanotube quantum dot junction hosting a spin $\tfrac{1}{2}$ atom with single $s$-wave valence electron (e.g Au). The idea is to use the two valleys as two symmetry protected flavor quantum…

强关联电子 · 物理学 2014-08-22 Igor Kuzmenko , Tetyana Kuzmenko , Yshai Avishai

We theoretically study the interplay between electrical and mechanical properties of suspended, doubly clamped carbon nanotubes in which charging effects dominate. In this geometry, the capacitance between the nanotube and the gate(s)…

介观与纳米尺度物理 · 物理学 2009-11-07 S. Sapmaz , Ya. M. Blanter , L. Gurevich , H. S. J. van der Zant

Single walled carbon nanotubes (SWNT) have displayed a wealth of quantum transport phenomena thus far. Defect free, unperturbed SWNTs with wellbehaved or tunable metal contacts are important to probing the intrinsic electrical properties of…

介观与纳米尺度物理 · 物理学 2015-06-25 Jien Cao , Qian Wang , Hongjie Dai

Carbon nanotubes (CNT) have a very large application potential in the rapid developing field of molecular electronics. Infinite single-wall metallic CNTs have theoretically a conductance of 4e2/h because of the two electronic bands crossing…

介观与纳米尺度物理 · 物理学 2007-05-23 N. Ranjan , R. Gutierrez-Laliga , S. Krompiewski , G. Cuniberti

Quantum sensing techniques have been successful in pushing the sensitivity limits in numerous fields, and hold great promise for scanning probes that study nano-scale devices and novel materials. However, forming a nano-scale qubit that is…

介观与纳米尺度物理 · 物理学 2019-08-23 Ilya Khivrich , Shahal Ilani
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