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In this report, we present nanoelectromechanical resonators fabricated with thin exfoliated crystals of a high-T$_c$ cuprate superconductor Bi$_2$Sr$_2$Ca$_1$Cu$_2$O$_{8+\delta}$. The mechanical readout is performed by capacitively coupling…

Recent theoretical calculations and photoemission spectroscopy measurements on the bulk Bi2Se3 material show that it is a three-dimensional topological insulator possessing conductive surface states with nondegenerate spins, attractive for…

Mesoscale and Nanoscale Physics · Physics 2010-05-02 Desheng Kong , Jason C. Randel , Hailin Peng , Judy J. Cha , Stefan Meister , Keji Lai , Yulin Chen , Zhi-Xun Shen , Hari C. Manoharan , Yi Cui

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 demonstrate a high electron conductivity (> 10^2 S/cm and up to 10^3 S/cm) of tungsten suboxide W18O(52.4-52.9)(or equivalently WO(2.91-2.94)) nanotubes (2 to 3 nm in diameter, ca. micrometer long). The conductivity is measured in the…

In recent years, self-assembled semiconductor nanowires have been successfully used as ultra-sensitive cantilevers in a number of unique scanning probe microscopy (SPM) settings. We describe the fabrication of ultra-low dissipation…

Applied Physics · Physics 2020-02-19 Pardis Sahafi , William Rose , Andrew Jordan , Ben Yager , Michèle Piscitelli , Raffi Budakian

Bottom up nanowires are attractive for realizing semiconductor devices with extreme heterostructures because strain relaxation through the nanowire sidewalls allows the combination of highly lattice mismatched materials without creating…

Superconducting nanowire single photon detectors are capable of single-photon detection across a large spectral range, with near unity detection efficiency, picosecond timing jitter, and sub-10 $\mu$m position resolution at rates as high as…

Instrumentation and Detectors · Physics 2020-03-18 T. Polakovic , W. R. Armstrong , V. Yefremenko , J. E. Pearson , K. Hafidi , G. Karapetrov , Z. -E. Meziani , V. Novosad

Superconducting nanowires are widely used as sensitive single photon detectors with wide spectral coverage and high timing resolution. We describe a demonstration of an array of DC biased superconducting nanowire single photon detectors…

Instrumentation and Detectors · Physics 2019-05-17 A. K. Sinclair , E. Schroeder , D. Zhu , M. Colangelo , J. Glasby , P. D. Mauskopf , H. Mani , K. K. Berggren

Metal nanoparticles are the most frequently used nanostructures in plasmonics. However, besides nanoparticles, metal nanowires feature several advantages for applications. Their elongation offers a larger interaction volume, their…

Since the introduction of bolometers more than a century ago, they have been applied in a broad spectrum of contexts ranging from security and the construction industry to particle physics and astronomy. However, emerging technologies and…

We present the preparation and measurements of nanowires of single-crystal NbSe$_2$. These nanowires were prepared on ultrathin ($\lesssim10\text{ nm}$) flakes of NbSe$_2$ mechanically exfoliated from a bulk single crystal using a process…

Superconductivity · Physics 2014-05-07 Shaun A. Mills , Neal E. Staley , Jacob J. Wisser , Chenyi Shen , Zhuan Xu , Ying Liu

Superconducting nanowire single-photon detectors (SNSPDs) have an absolute advantage over other types of single photon detectors except the low operating temperature. Therefore, many efforts have been devoted to find high-temperature…

Superconductivity · Physics 2018-01-17 Pusheng Yuan , Zhongtang Xu , Chen Li , Baogang Quan , Junjie Li , Changzhi Gu , Yanwei Ma

Metal-oxide nanowires are showing a great interest in the domain of gas sensing due to their large response even at a low temperature, enabling low-power gas sensors. However their response is still not fully understood, and mainly…

Materials Science · Physics 2020-03-27 Nohora Caicedo , Renaud Leturcq , Jean-Pierre Raskin , Denis Flandre , Damien Lenoble

Superconducting nanowires can be fabricated by decomposition of an organometallic gas using a focused beam of Ga ions. However, physical damage and unintentional doping often results from the exposure to the ion beam, motivating the search…

Mesoscale and Nanoscale Physics · Physics 2015-02-18 Shamashis Sengupta , Chuan Li , Cedric Baumier , Alik Kasumov , S. Gueron , H. Bouchiat , F. Fortuna

We report the photoresponse of niobium diselenide (NbSe$_2$), a transition metal dichalcogenide (TMD) which exhibits superconducting properties down to a single layer. Devices are built by using micro-mechanically cleaved 2 to 10 layers and…

The observation that the thermal conductivity of single-crystalline silicon nanowires with diameter on the length scale of 25 nm is lower than that of bulk material by two orders of magnitude has attracted the interest onto silicon as a…

A design concept for nanowire-based sensors and arrays is described. The fabrication technique involves electrodeposition to directly grow nanowires between patterned thin film contact electrodes. To prove our concept, we have…

Materials Science · Physics 2009-11-10 Minhee Yun , Nosang V. Myung , Richard P. Vasquez , Jianjun Wang , Harold Monbouquette

Finding a clear signature of topological superconductivity in transport experiments remains an outstanding challenge. In this work, we propose exploiting the unique properties of three-dimensional topological insulator nanowires to generate…

Mesoscale and Nanoscale Physics · Physics 2014-09-10 Fernando de Juan , Roni Ilan , Jens H. Bardarson

We report superconductivity in quasi-1D nanostructures created at the LaAlO3/SrTiO3 interface. Nanostructures having line widths w~10 nm are formed from the parent two-dimensional electron liquid using conductive atomic force microscope…

Using nanowires for photodetection constitutes an opportunity to enhance the absorption efficiency while reducing the electrical cross-section of the device. They present interesting features like compatibility with silicon substrates,…

Materials Science · Physics 2019-04-30 Maria Spies , Eva Monroy