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A novel one pot process has been developed for the preparation of PbS nanocrystals in the conjugated polymer poly 2-methoxy,5-(2 -ethyl-hexyloxy-p-phenylenevinylene) (MEH-PPV). Current techniques for making such composite materials rely…

Materials Science · Physics 2007-05-23 A. A. R. Watt , H. Rubinsztein-Dunlop , P. Meredith

Solid-state synthesis from powder precursors is the primary processing route to advanced multicomponent ceramic materials. Designing ceramic synthesis routes is usually a laborious, trial-and-error process, as heterogeneous mixtures of…

The future of 2D flexible electronics relies on the preparation of conducting ultrathin films of materials with mechanical robustness and flexibility in a simple but controlled manner. In this respect, metal-organic compounds present…

Magneto-optical imaging and magnetization measurements were applied to investigate local formation of superconducting phase effected by a random neck synthesis in Y-Ba-Cu-O system. Polished pellets of strongly inhomogeneous ceramic samples…

Superconductivity · Physics 2009-11-13 J. B. Willems , J. Albrecht , I. L. Landau , J. Hulliger

A single-sample synthesis concept based on multi-element ceramic samples can produce a variety of local products. When applied to cuprate superconductors (SC), statistical modelling predicts the occurrence of possible compounds in a…

In this paper, the $Fe$-containing superconductors $Fe_{0.5}Cu_{0.5}Ba_2YCu_2O_{7+\delta}$, $Fe_{0.5}Cu_{0.5}BaSrYCu_2O_{7+\delta}$ and $Fe_{0.5}Cu_{0.5}Sr_2YCu_2O_{7+\delta}$ were successfully prepared by common solid-state reaction…

Superconductivity · Physics 2009-11-10 Z. A. Ren , G. C. Che , Y. M. Ni , C. Dong , H. Chen , S. L. Jia , Z. X. Zhao

The recent claim of potential room-temperature superconductivity in Pb$_{10-x}$Cu$_{x}$(PO$_{4}$)$_{6}$O has attracted widespread attention. However, the signature of superconductivity is later attributed to the Cu$_{2}$S impurity formed…

Superconductivity · Physics 2024-09-12 W. Z. Yang , Z. H. Pang , Z. Ren

We identify a scalable, practical route to fabricating a superconducting diode. The device relies for its function on the barrier to flux vortex entry being reduced at the substrate interface of a superconducting pinning enhanced…

Superconductivity · Physics 2009-09-15 S. A. Harrington , J. L. MacManus-Driscoll , J. H. Durrell

A safe, simple and easily scaleable one-step sintering method is proposed to fabricate newly discovered superconductors of SmO1-xFxFeAs. Superconducting transition with the onset temperature of 54.6 K and high critical fields Hc2(0) >=200 T…

Superconductivity · Physics 2009-02-20 Yanwei Ma , Zhaoshun Gao , Lei Wang , Yanpeng Qi , Dongliang Wang , Xianping Zhang

The Tm-Ba-Cu-O solder can be successfully used to produce a superconductive joint between MT-YBCO parts. The peculiarities of solidification, phase formation, structure transformations and electromagnetic properties of MT-YBCO soldered with…

Since the discovery of superconductor one hundred years ago, tremendous theoretical and technological progresses have been achieved. The zero resistance and complete diamagnetism of superconducting materials promise many possibilities in…

Superconductivity · Physics 2024-10-24 Wendi Bao , Jie Zhang , Wei Rao , Jing Liu

Acoustic-directed assembly is a modular and flexible bottom-up technique with the potential to pattern a wide range of materials. Standing acoustic waves have been previously employed for patterning preformed metal particles, however,…

CeNi0.8Bi2 is very recent entrant in superconductivity kitchen [1], and the same seeks reproduction from other groups. We report synthesis, structural details and superconductivity in CeNi0.8Bi2 compound. The CeNi0.8Bi2 compound is…

Superconductivity · Physics 2012-07-10 Anuj Kumar , Shiva Kumar , Rajveer Jha , V. P. S. Awana

High-temperature superconductivity is reported in a series of compositionally-complex cuprates with varying degrees of size and spin disorder. Three compositions of Y-site alloyed YBa$_2$Cu$_3$O$_{7-x}$, i.e., (5Y)BCO, were prepared using…

We report a simple one pot process for the preparation of lead sulphide (PbS) nanocrystals in the conjugated polymer MEH-PPV, and we demonstrate electronic coupling between the two components.

Materials Science · Physics 2007-05-23 Andrew Watt , Elizabeth Thomsen , Paul Meredith , Halina Rubinsztein-Dunlop

A fast and furnace-free method of combustion synthesis is employed for the first time to synthesize iron-based superconductors. Using this method, Fe1.1Se1-xTex (0<=x<=1) samples can be prepared from self-sustained reactions of element…

Superconductivity · Physics 2016-07-07 Guang-Hua Liu , Tian-Long Xia , Xuan-Yi Yuan , Jiang-Tao Li , Ke-Xin Chen , Lai-Feng Li

We have successfully synthesized the c-axis oriented YBa2Cu4O8 (Y-124) film on a SrTiO3 (1 0 0) substrate via a coprecipitation and a dip-coating method. The precipitations including Y, Ba and Cu ions were obtained using their metal…

Superconductivity · Physics 2019-07-12 Hiroshi Hara , Shintaro Adachi , Ryo Matsumoto , Yoshito Saito , Hiroyuki Takeya , Yoshihiko Takano

We present a two-step technique for the synthesis of superconducting CuxBi2Se3. Cu0.15Bi2Se3 single crystals were synthesized using the melt-growth method. Although these samples are non-superconducting, they can be employed to generate…

Superconductivity · Physics 2016-03-08 Meng Wang , Yanru Song , Lixing You , Zhuojun Li , Bo Gao , Xiaoming Xie , Mianheng Jiang

We report the successful synthesis of single-crystalline cuprate superconductors HgBa$_{2}$CaCu$_{2}$O$_{6+\delta}$ and HgBa$_{2}$Ca$_{2}$Cu$_{3}$O$_{8+\delta}$. These compounds are well-known for their high optimal superconducting critical…

Superconducting single crystals of Rb-intercalated FeSe compounds Rb$_x$Fe$_{2-y}$Se$_2$ were prepared by using a starting material of Rb$_2$Se as a Rb source. The superconducting properties and the surface microstructures were…

Superconductivity · Physics 2017-08-15 Masashi Tanaka , Hiroyuki Takeya , Yoshihiko Takano
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