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Related papers: Highly Conductive Tungsten Suboxide Nanotubes

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Tungsten monophosphide (WP) has been reported to superconduct below 0.8 K, and theoretical work has predicted an unconventional Cooper pairing mechanism. Here we present data for WP single crystals grown by means of chemical vapor transport…

Comprehensive low-temperature specific heat data C(T,H) of Na_0.35CoO2-1.3H_2O with temperature T down to 0.6 K and the magnetic field H up to 8 T are presented. For the normal state, the values of gamma_n=13.94 mJ/mol K2, and Debye…

Superconductivity · Physics 2009-11-10 H. D. Yang , J. -Y. Lin , C. P. Sun , Y. C. Kang , C. L. Huang , K. Takada , T. Sasaki , H. Sakurai , E. Takayama-Muromachi

The electronic and transport properties of (10, 0) single-walled carbon nanotube are studied by performing the first-principles calculations and semi-classical Boltzmann theory. It is found that the (10, 0) tube exhibits considerably large…

Mesoscale and Nanoscale Physics · Physics 2016-01-06 P. H. Jiang , H. J. Liu , D. D. Fan , L. Cheng , J. Wei , J. Zhang , J. H. Liang , J. Shi

We have measured the electrical properties of individual bundles, or "ropes" of single-walled carbon nanotubes. Below ~10 K, the low bias conductance is suppressed for voltages below a few millivolts. In addition, dramatic peaks are…

Mesoscale and Nanoscale Physics · Physics 2008-02-03 Marc Bockrath , David H. Cobden , Paul L. McEuen , Nasreen G. Chopra , A. Zettl , Andreas Thess , R. E. Smalley

Below a certain temperature Tc (typically cryogenic), some materials lose their electric resistance R entering a superconducting state. Folowing the general trend toward a large scale integration of a greater number of electronic…

Superconductivity · Physics 2015-06-25 Maciej Zgirski , Karri-Pekka Riikonen , Vladimir Touboltsev , Konstantin Arutyunov

We discuss magnetotransport measurements on individual single-wall carbon nanotubes with low contact resistance, performed as a function of temperature and gate voltage. We find that the application of a magnetic field perpendicular to the…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 H. T. Man , A. F. Morpurgo

Topological crystalline insulator tin telluride (SnTe) provides a rich playground to examine interactions of correlated electronic states, such as ferroelectricity, topological surface states, and superconductivity. Making SnTe into…

Suspended superconducting nanostructures of MoRe $50\%/50\%$ by weight are fabricated employing commonly used fabrication steps in micro- and nano-meter scale devices followed by wet-etching with Hydro-fluoric acid of a SiO$_2$ sacrificial…

Superconductivity · Physics 2015-06-19 Mohsin Aziz , David Christopher Hudson , Saverio Russo

The performance of carbon nanotube (CNT) cables, a contender for copper-wire replacement, is tied to its metallic and semi-conducting-like conductivity responses with temperature; the origin of the semi-conducting-like response however is…

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

Carbon nanotube field-effect transistors operate over a wide range of electron or hole density, controlled by the gate voltage. Here we calculate the mobility in semiconducting nanotubes as a function of carrier density and electric field,…

Materials Science · Physics 2015-06-25 Vasili Perebeinos , J. Tersoff , Phaedon Avouris

A great number of the existing data for electrical transport, the Altshuler Aronov Spivak and Aharonov Bohm effects, as well as the tunneling spectra of individual carbon nanotubes can be well explained by theories of the quantum phase…

Superconductivity · Physics 2007-05-23 Guo-meng Zhao

We present a comprehensive computational study of the electronic, thermal, and thermoelectric (TE) properties of gallium nitride nanowires (NWs) over a wide range of thicknesses (3--9 nm), doping densities ($10^{18}$--$10^{20}$ cm$^{-3}$),…

Mesoscale and Nanoscale Physics · Physics 2014-05-21 A. H. Davoody , E. B. Ramayya , L. N. Maurer , I. Knezevic

The two-dimensional electron gas at the LaTiO3/SrTiO3 or LaAlO3/SrTiO3 oxide interfaces becomes superconducting when the carrier density is tuned by gating. The measured resistance and superfluid density reveal an inhomogeneous…

Superconductivity has been found in RuN films obtained by reactive magnetron sputtering. This is a novel member of the metal nitride superconductors family. The critical temperature of the superconducting transition varies depending on the…

High electric conductivity ~100 MegaSiemens/m and Seebeck coefficient >200 mkV/K of carbon nanotubes (CNT) make them attractive for a variety of applications. Unfortunately, a high thermal conductivity ~ 3000 W/(m*K) due to the phonon…

Mesoscale and Nanoscale Physics · Physics 2016-11-10 T. Gupta , I. P. Nevirkovets , V. Chandrasekhar , S. Shafranjuk

It is well known that copper-based perovskite oxides rightly enjoy consensus as high-temperature superconductors on the basis of two signatures: Meissner effect and zero resistance. In contrast, I provide over twenty signatures for room…

Superconductivity · Physics 2007-05-23 Guo-meng Zhao

We report magnetic measurements up to 1100 K on a multi-walled carbon nanotube mat sample using a Quantum Design vibrating sample magnetometer. In an ultra-low field (H = -0.02 Oe), we find a very large paramagnetic susceptibility (up to…

Superconductivity · Physics 2007-05-23 Guo-meng Zhao , Pieder Beeli

We present a study of the superconducting properties of the candidate topological superconductor Ti_(3)Sb. Electrical transport measurements show zero resistance with a T_(c,onset) of ~ 5.9 K with a transition width {\Delta}T_c~ 0.6 K. The…

Superconductivity · Physics 2023-03-15 R. Chapai , M. P. Smylie , H. Hebbeker , D. Y. Chung , W. -K. Kwok , J. F. Mitchell , U. Welp

We have measured the transport properties of a series of underdoped YBa2Cu3O7 nanowires fabricated with widths of 100-250 nm. We observe large telegraph-like fluctuations in the resistance between the pseudogap temperature T* and the…

Superconductivity · Physics 2007-05-23 J. A. Bonetti , D. S. Caplan , D. J. Van Harlingen , M. B. Weissman