Results 41 to 50 of about 95,883 (258)

Dependence of Tc on spin-amplified phonons in pressurized hydrides

Results in Physics, 2022
The realization of room temperature superconductivity in an under-high-pressure carbonaceous sulphur hydride has sparked off interest in pressurized superconductivity.
Abel Mukubwa, Fred Wekesa Masinde
doaj   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

Advanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

Kinetic Regimes of Hydrogen Absorption in Thin Films

Advanced Functional Materials, EarlyView.
Knowledge of the hydrogen incorporation mechanisms in thin layers in relation to the amount absorbed is essential to design coatings and devices compatible with hydrogen‐based technologies. A combination of simultaneous in situ methods gives detailed insight into the hydrogenation of a prototypical hydrogen absorber layer in a time‐dependent manner ...
Laura Guasco, Sabine Pütter, Yury N. Khaydukov, Luca Silvi, Mariano A. Paulin, Attila Csik, Thomas Keller, Bernhard Keimer   +7 more
wiley   +1 more source

High-temperature superconductivity in doped antiferromagnets

, 1999
In the context of an effective model for doped antiferromagnets, whereby the charge carriers are treated as hard-core bosons, we demonstrate that the ground state energy close to half-filling is an even periodic function of the external magnetic flux ...
Anderson, Assaad, Basov, Bednorz, Byers, Chen, Cooper, Dagotto, Eder, Emery, Emery, Gammel, Gough, Gregory C. Psaltakis, Gupta, Gupta, Hybertsen, Kastner, Kivelson, Kivelson, Long, Long, Olsson, Orenstein, Pham, Presland, Psaltakis, Psaltakis, Psaltakis, Psaltakis, Scalapino, Scalapino, Shamoto, Tallon, Thouless, Uchida, Uemura, Uemura, Uemura, Wen, Wu, Yang, Yu   +42 more
core   +1 more source

Fast Track to the Overdoped Regime of Superconducting YBa2Cu3O7‐δ Thin Films via Electrochemical Oxidation

Advanced Functional Materials, EarlyView.
Overdoping high temperature superconductors, such as YBa2Cu3O7‐δ (YBCO), is expected to maxime the critical current density by optimising the condensation energy for a given defect landscape, providing new thrust for the development of fusion enabling coated conductors. Here, precise oxygen control is achieved via an electrochemical method allowing for
Alexander Stangl, Aiswarya Kethamkuzhi, Hervé Roussel, Cornelia Pop, Xavier Obradors, Teresa Puig, Mónica Burriel, Arnaud Badel   +7 more
wiley   +1 more source

Projected Wavefunctions and High Temperature Superconductivity

, 2001
We study the Hubbard model with parameters relevant to the cuprates, using variational Monte Carlo with projected d-wave states. For doping 0 < x < 0.35 we obtain a superconductor whose order parameter tracks the observed nonmonotonic Tc(x).
A. H. Macdonald, A. J. Millis, A. J. Millis, A. Kaminski, A. Kaminski, A. Paramekanti, A. Paramekanti, Arun Paramekanti, C. Gros, C. Gros, C. Gros, D. H. Lee, D. L. Feng, E. S. Heeb, F. Becca, G. Baskaran, G. Kotliar, H. Eskes, H. Yokoyama, H. Yokoyama, J-C. Campuzano, L. Benfatto, Mohit Randeria, Nandini Trivedi, P. W. Anderson, S. F. Lee, S. L. Cooper, X. G. Wen, Y. J. Uemura   +28 more
core   +1 more source

High-temperature superconductivity [PDF]

Brazilian Journal of Physics, 2003
The widely held notion that high-temperature superconductivity originates in the cuprate-planes is proven to be faulty. In the cuprates such as YBa2Cu3O7, we argue that the superconductivity resides in the BaO layers. This superconductivity is s-wave, not d-wave, in the bulk.
Dow, John D., Harshman, Dale R.
openaire   +3 more sources

Chirality and Organization of Adsorbates Modify Surface Phonon Dynamics

Advanced Functional Materials, EarlyView.
Chirality and molecular organization are shown to influence surface phonon dynamics in gold films. Time‐resolved Joule heating measurements reveal that ordered homochiral monolayers increase the Debye temperature and disordered layers reduce it, while ordered racemic controls have no effect.
Meital Ozeri, Eugenia Pyurbeeva, Shira Yochelis, Jonas Fransson, Ronnie Kosloff, Oded Millo, Yossi Paltiel   +6 more
wiley   +1 more source

Electron Correlation and High-Temperature Superconductivity

Condensed Matter
Strong electron correlation plays a central role in the high-temperature superconductivity (HTSC) of cuprates. However, to date, research has focused only on its role in spin dynamics and related effects, even though it is becoming increasingly clear ...
Takeshi Egami
doaj   +1 more source

Effects of Co substitution on thermodynamic and transport properties and anisotropic $H_{c2}$ in Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ single crystals

, 2008
Single crystalline samples of Ba(Fe$_{1-x}$Co$_x$)$_2$As$_2$ with $x < 0.12$ have been grown and characterized via microscopic, thermodynamic and transport measurements.
Bud'ko, S. L., Canfield, P. C., Hannahs, S. T., Kracher, A., Ni, N., Tillman, M. E., Yan, J. -Q.   +6 more
core   +1 more source