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Superconducting single crystal samples of Na_xCoO_2 + yH_2O have been produced using an electrochemical technique which dispenses with the usual bromine chemical de-intercalation step and permits much more precise control of the Na content.…

Strongly Correlated Electrons · Physics 2009-11-10 F. C. Chou , J. H. Cho , Patrick A. Lee , E. T. Abel , K. Matan , Young S. Lee

The design-make-test-analyze cycle in early-stage drug discovery remains constrained primarily by the "make" step: small-molecule synthesis is slow, costly, and difficult to scale or automate across diverse chemotypes. Enumerated chemical…

Chemical Physics · Physics 2026-01-21 Andrei S. Tyrin , Brandon Wang , Manuel Muñoz , Samuel H. Foxman , Daniil A. Boiko

Compounds of series YBa2Cu3O7-d (d = 0.7), being synthesized by solid-state synthesis route with x = 0.0, 0.10, 0.15 and 0.20, crystallize in single-phase form with tetragonal structure (space group P4/mmm). The c-lattice parameter…

Both superconductivity and thermoelectricity offer promising prospects for daily energy efficiency applications. The advancements of thermoelectric materials have led to the huge improvement of the thermoelectric figure of merit in the past…

Point-contacts formed by the high-temperature superconductor $\rm YBa_2Cu_3O_{7-\delta}$ prepared by cryochemical technique, and a noble metal Ag or Cu) are investigated. The maximum value of the energy gap $\Delta\simeq 40~meV$ and the…

The vortex phases in type-II superconductors are very important since they determine many magnetic and electric properties of the parent compound. However, a universal tool to characterize the vortex phases is still lacking. We demonstrate…

Superconductivity · Physics 2023-08-15 Peipei Lu , Jing Zhang , Jun Lu , Xiaoyuan Zhou , Young Sun , Yisheng Chai

Using a new two-step synthesis method - ultrasound treatment and low temperature annealing, we explore superconductivity in potassium-doped triphenylbismuth, which is composed of one bismuth atom and three phenyl rings. The combination of…

Superconductivity · Physics 2018-02-12 Ren-Shu Wang , Jia Cheng , Xiao-Lin Wu , Hui Yang , Xiao-Jia Chen , Yun Gao , Zhong-Bing Huang

Two different hot isostatic pressing cycles (HIPing) were investigated to synthesize bulk MgB2 samples: a "standard" cycle where a low vessel pressure is maintained while heating to the process temperature with a subsequent simultaneous…

Superconductivity · Physics 2007-05-23 S. S. Indrakanti , V. F. Nesterenko , M. B. Maple , N. A. Frederick , W. M. Yuhasz , Shi Li

A superconducting diode is an electronic device that conducts supercurrent and exhibits zero resistance primarily for one direction of applied current. Such a dissipationless diode is a desirable unit for constructing electronic circuits…

Applying AI power to predict syntheses of novel materials requires high-quality, large-scale datasets. Extraction of synthesis information from scientific publications is still challenging, especially for extracting synthesis actions,…

Machine Learning · Computer Science 2022-01-25 Zheren Wang , Kevin Cruse , Yuxing Fei , Ann Chia , Yan Zeng , Haoyan Huo , Tanjin He , Bowen Deng , Olga Kononova , Gerbrand Ceder

We report on the structural, magnetic, and Raman-scattering studies of double perovskite structure Sr2Y(Ru1-xCux)O6-d systems made by systematic synthesis processes with various numbers of doping concentrations and sintering temperatures.…

Superconductivity · Physics 2009-11-13 E. Galstyan , Y. Y. Xue , M. N. Iliev , Y. Sun , C. W. Chu

This study proposes a novel solution blow spinning technique (SBS) for fabricating YBCO ceramic nanofibers. The precursor solutions were obtained from Y, Ba, and Cu metallic acetates (Ac) and poly(vinyl pyrrolidone) (PVP, Mw = 360,000).…

Materials Science · Physics 2017-08-01 M. Rotta , L. Zadorosny , C. L. Carvalho , J. A. Malmonge , L. F. Malmonge , R. Zadorosny

We report the first pyrochlore oxide superconductor Cd2Re2O7. Resistivity,magnetic susceptibility,and specific heat measurements on single crystals evidence a bulk superconductivity at 1 K. Another phase transition found at 200 K suggests…

Superconductivity · Physics 2019-08-17 M. Hanawa , Y. Muraoka , T. Tayama , T. Sakakibara , J. Yamaura , Z. Hiroi

We report the multistep electrolytic process for the synthesis of high Tc single phase HgBa2Ca2Cu3O8+ (Hg-1223) superconducting films. The process includes : i) deposition of BaCaCu precursor alloy, ii) oxidation of BaCaCu films,…

Superconductivity · Physics 2009-11-10 D. D. Shivagan , P. M. Shirage , L. A. Ekal , S. H. Pawar

The synthesis of xAgI(1-x)[Ag2O.B2O3] amorphous superionic conductors is done via mechanochemical synthesis route (for x = 0.5 and 0.7). Ionic conductivities of 3 mOhm-1cm-1 for x = 0.5 sample and 5mOhm-1cm-1 for x = 0.7 sample at room…

Materials Science · Physics 2010-09-21 Ankur Verma , K Shahi

The demand for nanostructured materials can increase exponentially due to the miniaturization of devices and their potential application in different areas, such as electronic and medicine. Therefore, high production rates are essential for…

Applied Physics · Physics 2019-07-01 M. Rotta , M. Motta , A. L. Pessoa , C. L. Carvalho , W. A. Ortiz , R. Zadorosny

We propose a novel approach of wet electrospinning to yield fiber-reinforced polymer ceramic composites, where a reactive ceramic precursor gel is used as a collector. We illustrate our approach by generating polyethylene oxide (PEO) fibers…

Soft Condensed Matter · Physics 2021-10-18 Yunzhi Xu , Junior Ndayikengurukiye , Ange-Therese Akono , Ping Guo

High-quality superconducting KxFeySe2 single crystals were synthesized using an easy one-step method. Detailed annealing studies were performed to make clear the phase formation process in KxFeySe2. Compatible observations were found in…

Superconductivity · Physics 2015-06-18 W. Zhou , X. Li , X. Zhou , F. F. Yuan , Y. Ding , J. C. Zhuang , Y. Sun , H. L. Zhou , Z. X. Shi

Although copper and bismuth do not form any compounds at ambient conditions, two intermetallics, CuBi and Cu$_{11}$Bi$_7$, were recently synthesized at high pressures. Here we report on the discovery of additional copper-bismuth phases at…

Superconductivity · Physics 2017-09-06 Maximilian Amsler , Chris Wolverton

Bulk superconductor samples of YBa2Cu3-xCoxO7-{\delta} with x = 0, 0.01, 0.03, 0.05 are synthesized by solid-state reaction route. Both x-ray diffraction and electron microscopy have been employed to study the phase identification,…

Superconductivity · Physics 2011-07-07 Sushant Gupta , R. S. Yadav , N. P. Lalla , G. D. Verma , B. Das