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This article proposes a scheme for nitrogen-vacancy (NV) center magnetometry that combines the advantages of lock-in detection and pulse-type scheme. The optimal conditions, optimal sensitivity, and noise-suppression capability of the…

Applied Physics · Physics 2021-01-08 Jixing Zhang , Heng Yuan , Tianzheng Liu , Lixia Xu , Guodong Bian , Pengcheng Fan , Mingxin Li

We show using molecular dynamics simulation that spatial confinement of water inside carbon nanotubes (CNT) substantially increases its boiling temperature and that a small temperature growth above the boiling point dramatically raises the…

Materials Science · Physics 2012-02-08 Vitaly V. Chaban , Oleg V. Prezhdo

The electronic properties of multi-wall carbon nanotubes (MWNTs) have attracted much attention because they could lead to nano-sized electronic devices. Using chemical vapor deposition (CVD), MWNTs are produced in large quantities at a low…

Materials Science · Physics 2007-05-23 Hisashi Kajiura , Anil Nandyala , Alexey Bezryadin

Carbon nanotubes are a fraction of the size of transistors used in today's best microchips, as it could reduce power demands and heating in next electronics revolution. Present study investigates the electronic and magnetic structure of…

Materials Science · Physics 2012-01-09 Sanjeev Gautama , P. Thakur , S. Augustine , J. K. Kang , J. -Y. Kim , N. B. Brookes , K. Asokan , Keun Hwa Chae

We report fast readout of the motion of a carbon nanotube mechanical resonator. A close-proximity high electron mobility transistor amplifier is used to increase the bandwidth of the measurement of nanotube displacements from the kHz to the…

Mesoscale and Nanoscale Physics · Physics 2013-10-08 H. B. Meerwaldt , S. R. Johnston , H. S. J. van der Zant , G. A. Steele

Room-temperature quasi-ballistic electron transport in double-wall carbon nanotubes (DWNT) is demonstrated. Conductance dependence on the length was measured by submerging DWNTs into liquid mercury. The conductance plots show plateaus,…

Materials Science · Physics 2009-11-10 Hisashi Kajiura , Houjin Huang , Alexey Bezryadin

We report measurements of the temperature and gate voltage dependence for individual bundles (ropes) of single-walled nanotubes. When the conductance is less than about e^2/h at room temperature, it is found to decrease as an approximate…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 David H. Cobden , Jesper Nygard , Marc Bockrath , Paul L. McEuen

Friction forces are conventionally modeled via semiclassical theories that associate energy dissipation with newtonian motion on corrugated interface potentials. This consolidated approach is challenged at the nanoscale by observation of…

Mesoscale and Nanoscale Physics · Physics 2026-04-15 Alberto Ambrosetti , Pier Luigi Silvestrelli , John F. Dobson , Luca Salasnich

Fullerence encapsulation has been proven to be a powerful approach to enhance mechanical and electronic properties of the single-walled carbon nanotubes (SWCNTs). However, some discrepancies emerge in recent studies of the fullerence…

Materials Science · Physics 2018-05-14 Jing Wan , Jin-Wu Jiang

We present a new concept of scanning thermal nanoprobe that utilizes the extreme thermal conductance of a carbon nanotube (CNT) to channel heat between the probe and the sample. The integration of CNT in scanning thermal microscopy (SThM)…

Mesoscale and Nanoscale Physics · Physics 2013-05-28 Peter D. Tovee , Manuel E. Pumarol , Mark C. Rosamond , Robert Jones , Michael C. Petty , Dagou A. Zeze , Oleg V. Kolosov

We have observed the transversal vibration mode of suspended carbon nanotubes at millikelvin temperatures by measuring the single-electron tunneling current. The suspended nanotubes are actuated contact-free by the radio frequency electric…

Mesoscale and Nanoscale Physics · Physics 2009-07-18 A. K. Huettel , G. A. Steele , B. Witkamp , M. Poot , L. P. Kouwenhoven , H. S. J. van der Zant

We calculate the current and electrostatic potential drop in metallic carbon nanotube wires self-consistently, by solving the Green's function and electrostatics equations in the ballistic case. About one tenth of the applied voltage drops…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 A. Svizhenko , M. P. Anantram , T. R. Govindan

High rate sampling detectors measuring the potential difference between the main body and boom antennas of interplanetary spacecraft have been shown to be efficient means to measure the voltage pulses induced by nano dust impacts on the…

Earth and Planetary Astrophysics · Physics 2012-05-10 Filippo Pantellini , Soraya Belheouane , Nicole Meyer-Vernet , Arnaud Zaslavsky

Achieving high level of pulsed squeezing, in a platform which offers integration and stability, is a key requirement for continuous-variable quantum information processing. Typically highly squeezed states are achieved with narrow band…

A simple method to calculate the static electric polarization of single-walled carbon nanotube (SWNT) is obtained within the second-order perturbation approximation. The results are in agreement with the previous calculation within the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Xin Zhou , Hu Chen , Ou-Yang Zhong-can

Carbon nanotube (CNT) heaters with sub-5 nm diameter induce highly localized phase change in Ge2Sb2Te5 (GST) chalcogenide. A significant reduction in resistance of test structures is measured as the GST near the CNT heater crystallizes.…

Materials Science · Physics 2010-03-23 Feng Xiong , Albert Liao , Eric Pop

The optical absorption spectrums of nanomotors made from double-wall carbon nanotubes have been calculated with the time-dependent density functional based tight binding method. When the outer short tube of the nanomotor moves along or…

Mesoscale and Nanoscale Physics · Physics 2017-01-04 Baomin Wang , Xuewei Cao , Zhan Wang , Yong Wang , Kaihui Liu

A simple method combining photolithography and shadow (or angle) evaporation is developed to fabricate single-walled carbon nanotube (SWCNT) devices with tube lengths L~10-50 nm between metal contacts. Large numbers of such short devices…

Materials Science · Physics 2009-11-10 Ali Javey , Pengfei Qi , Qian Wang , Hongjie Dai

We report measurements of the non-equilibrium electron energy distribution in carbon nanotubes. Using tunneling spectroscopy via a superconducting probe, we study the shape of the local electron distribution functions, and hence energy…

Mesoscale and Nanoscale Physics · Physics 2010-08-03 Yung-Fu Chen , Travis Dirks , Gassem Al-Zoubi , Norman Birge , Nadya Mason

Transport through a metallic carbon nanotube is considered, where electrons are injected in the bulk by a scanning tunneling microscope tip. The charge current and noise are computed both in the absence and in the presence of one…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 A. Crepieux , R. Guyon , P. Devillard , T. Martin
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