Results 81 to 90 of about 137,728 (296)

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Cryogenic DC-DC Boost Converter Employing Superconducting Inductor

Eletrônica de Potência
Cryogenic power electronics applications, commonly referred to as cryo-converters, offer key advantages over conventional ambient-temperature systems, including higher power density and improved efficiency.
Samir A. Mussa, Herminio M. de Oliveira Filho , Gustavo A. L. Henn, Douglas M. Sotoriva, Lauro Ferreira, Loïc Queval   +5 more
doaj   +1 more source

Substitution for Cu in the electron-doped infinite-layer superconductor Sr0.9La0.1CuO2, Ni reduces Tc much faster than Zn

, 2001
We report on the effect of substitution for Cu on Tc of electron-doped infinite-layer superconductors Sr0.9La0.1Cu1-xRxO2, R = Zn and Ni. We found that Tc was nearly constant until x = 0.03 for R = Zn, while superconductivity was nearly suppressed for x =
A. A. Abrikosov, A. Keren, A. Lombardi, A. Lombardi, B. Chattopadhyay, B. Nachumi, C. C. Tsuei, C. U. Jung, C. U. Jung, C. U. Jung, D. A. Bonn, D. Pines, D. Vaknin, E. W. Hudson, G. Haran, G. V. M. Williams, G. Xiao, Heon-Jung Kim, J. D. Jorgensen, J. Giapintzakis, J. L. Tallon, J. L. Tallon, J. M. Tarascon, J. R. Kirtley, J. T. Markert, J. Y. Kim, Jun Sugiyama, K. Maki, L. Alff, L. S. Borkowski, M. G. Smith, M.-H. Julien, Min-Seok Park, Mun-Seog Kim, N. Ikeda, P. Mendels, R. Fehrenbacher, R. J. Radtke, R. Pizzi, R. S. Liu, S. H. Pan, S. Haas, S. Y. Lee, Shin-ichi Karimoto, Sung-Ik Lee, T. Nakano, T. R. Chien, T. Siegrist, Takayuki Miyatake, Y. Fukuzumi, Y. Maeno, Y. Sun, Y. Sun   +52 more
core   +1 more source

Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers

Advanced Materials, EarlyView.
Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez, Alejandro Orellana‐Silla, Marta Galbiati, Efrén Navarro‐Moratalla, Luca Braglia, Sara Stolfi, José Antonio Real, Víctor Rubio‐Giménez, Sergio Tatay, Carlos Martí‐Gastaldo   +9 more
wiley   +1 more source

Giant vortex states in type I superconductors simulated by Ginzburg-Landau equations

, 2013
The quantization of magnetic flux in superconductors is usually seen as vortices penetrating the sample. While vortices are unstable in bulk type I superconductors, restricting the superconductor causes a variety of vortex structures to appear.
Jäykkä, Juha, Palonen, Heikki, Paturi, Petriina   +2 more
core   +1 more source

Universal Conductance Fluctuations in Quantum Anomalous Hall Insulators

Advanced Materials, EarlyView.
Universal conductance fluctuations are observed in mesoscopic quantum anomalous Hall insulators. Two distinct fluctuation patterns are identified, arising from different interference processes of bulk and chiral edge states, respectively. These findings unveil rich quantum interference phenomena in quantum anomalous Hall insulators and provide insights
Peng Deng, Peng Zhang, Gang Qiu, Ting‐Hsun Yang, Chang Niu, Yaochen Li, Wenqiang Cui, Yang Feng, Peide D. Ye, Ke He, Kai Chang, Kang L. Wang   +11 more
wiley   +1 more source

Bond sensitive graph neural networks for predicting high temperature superconductors

Materials Genome Engineering Advances
Finding high temperature superconductors (HTS) has been a continuing challenge due to the difficulty in predicting the transition temperature (Tc) of superconductors.
Liang Gu, Yang Liu, Pin Chen, Haiyou Huang, Ning Chen, Yang Li, Turab Lookman, Yutong Lu, Yanjing Su   +8 more
doaj   +1 more source

Article Review: Anomalous Meissner Effect in Multiband Superconductors

Al-Kitab Journal for Pure Sciences
As a material transitions below its critical temperature, a defining characteristic of superconductivity is the Meissner effect, which is the removal of magnetic fields from the material.
marwah waleed
doaj   +1 more source

Quasiparticle Interactions in Two and Three Dimensional Superconductors

, 1997
I investigate the difference between the quasiparticle properties in two dimensional(2D)and three dimensional(3D) s-wave superconductors. Using the original BCS model for the pairing interaction and direct Coulomb interaction I show that quasiparticle ...
Coffey, D.
core   +1 more source

LEAD: Literature Enhanced Ab Initio Discovery of Nitride Dusting Layers for Enhanced Tunnel Magnetoresistance and Lower Resistance Magnetic Tunnel Junctions

Advanced Materials, EarlyView.
Magnetic tunnel junctions (MTJs) using MgO tunnel barriers face challenges of high resistance‐area product and low tunnel magnetoresistance (TMR). To discover alternative materials, Literature Enhanced Ab initio Discovery (LEAD) is developed. The LEAD‐predicted materials are theoretically evaluated, showing that MTJs with dusting of ScN or TiN on ...
Sabiq Islam, William S. Rogers, Chen‐Yu Hu, Ming‐Yuan Song, Xinyu Bao, Shehrin Sayed, Jean Anne C. Incorvia   +6 more
wiley   +1 more source