Results 71 to 80 of about 66,190 (276)

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

Dynamic analysis of superconductor at high temperature for antennas array

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
The analysis and new results of the resonance frequency and radiation pattern of antennas array, for glass fiber FR-4 substrate using superconductor and copper patch, are presented.
H. C. C. Fernandes, L. M. Caetano, H. M. C. A. Maia   +2 more
doaj   +1 more source

Boron Isotope Effect in Superconducting MgB$_2$

, 2001
We report the preparation method of, and boron isotope effect for MgB$_2$, a new binary intermetallic superconductor with a remarkably high superconducting transition temperature $T_c$($^{10}$B) = 40.2 K.
B. Aronsson, C. E. Cunningham, C. Petrovic, D. D. Lawrie, D. R. Armstrong, E. G. Maksimov, G. Lapertot, J. Akimitsu, J. Bardeen, J. L. Hoard, J. P. Carbotte, J. P. Franck, K. O. Cheon, L. F. Mattheiss, N. Anderson, P. C. Canfield, R. Kishore, S. L. Bud'ko, W. L. McMillan   +18 more
core   +2 more sources

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

Analysis of the Processes of Short-Currents Limiting by Transformer with High-Temperature Superconducting Windings [PDF]

Problems of the Regional Energetics, 2017
An important advantage of transformers with high-temperature superconducting winding is their ability to limit the short-circuit currents. The article discusses a physico-mathematical model that analyses transient processes at short-circuit currents in ...
Manusov V.Z., Pavlyuchenko D.A., Ahyoev J.S.   +2 more
doaj  

Superconducting Properties of MgB2 Bulk Materials Prepared by High Pressure Sintering

, 2001
High-density bulk materials of a newly discovered 40K intermetallic MgB2 superconductor were prepared by high pressure sintering. Superconducting transition with the onset temperature of 39K was confirmed by both magnetic and resistive measurements ...
H. Fujii, H. Ihara, H. Kito, H. Kumakura, H. Takeya, K. Togano, T. Hatano, Werthamer N. R., Y. Takano   +8 more
core   +1 more source

C16 Phase High Entropy Borides With High Magnetic Anisotropy

Advanced Materials, EarlyView.
Rare‐earth‐free C16‐phase high entropy boride thin films exhibit enhanced magnetic anisotropy with coercivities surpassing their binary and ternary counterparts. Combinatorial synthesis of (Fe‐Co‐Ni‐Mn)2B films combined with density functional theory enables mapping of the magnetic properties across the composition space, revealing high entropy ...
Willie B. Beeson, Dhritiman Bhattacharya, Dinesh Bista, Bradley J. Fugetta, Gen Yin, Kai Liu   +5 more
wiley   +1 more source

Pseudogap in high-temperature superconductors [PDF]

Physics-Uspekhi, 2001
This review describes the main experimental facts and a number of theoretical models concerning the pseudogap state in high - temperature superconductors. On the phase diagram of HTSC - cuprates the pseudogap state is observed in the region of current carrier concentrations less than optimal and leads to a number of anomalies of electronic properties ...
openaire   +2 more sources

High temperature superconductor materials and applications [PDF]

Research on processing methods leading to a significant enhancement in the critical current densities (Jc) and the critical temperature (Tc) of high temperature superconducting in thin bulk and thin film forms.
Banks, Curtis, Doane, George B., III., Golben, John   +2 more
core   +1 more source

Role of anisotropic impurity scattering in anisotropic superconductors

, 1996
A theory of nonmagnetic impurities in an anisotropic superconductor including the effect of anisotropic (momentum-dependent) impurity scattering is given. It is shown that for a strongly anisotropic scattering the reduction of the pair-breaking effect of
A. A. Abrikosov, A. A. Abrikosov, A. A. Abrikosov, A. D. S. Nagi, A. G. Sun, A. J. Millis, D. J. Scalapino, D. J. Van Harlingen, D. M. Brink, D. Markowitz, D. Pines, Grzegorz Harań, H. Kim, J. Annett, J. Giapintzakis, J. M. Valles, Jr., K. Maki, P. Hohenberg, P. J. Davis, P. Monthoux, P. Monthoux, P. W. Anderson, R. J. Radtke, St. Lenck, T. Hotta   +24 more
core   +2 more sources