Results 51 to 60 of about 6,016 (192)
Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides
1H NMR and radio‐frequency transmission measurements of lanthanum superhydrides at 165 GPa reveals a transition at 260–280 K by a strong suppression of the signal intensity, significant changes in NMR spectra, including a dramatic decrease of the relaxation rate 1/T1T, and pronounced shielding effect, which may have a superconducting nature.
Dmitrii V. Semenok +8 more
wiley +1 more source
The Inverse Magnetocaloric Effect of MgB2 Superconductor
AbstractThe magnetocaloric effect-(MCE) of MgB2 is simulated, considering the effect of sintering temperature on MCE. The results show that MCE of MgB2 samples is an inverse type in a temperature range of diamagnetic-paramagnetic transition. Moreover, the MCE for MgB2 is improved with high sintering temperature.
Youssef H. Abdelalim +5 more
openaire +1 more source
Effect of disorder on the NMR relaxation rate in two-band superconductors
We calculate the effect of nonmagnetic impurity scattering on the spin-lattice relaxation rate in two-band superconductors with the s-wave pairing symmetry.
B. Mitrović +7 more
core +1 more source
Specific Heat Discontinuity in Impure Two-Band Superconductors [PDF]
The Ginzburg-Landau coefficients, and the jump of the specific heat are calculated for a disordered two-band superconductor. We start with the analysis of a more general case arbitrary anisotropy.
A.A. Abrikosov +41 more
core +2 more sources
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira +4 more
wiley +1 more source
Transport critical current density in Fe-sheathed nano-SiC doped MgB2 wires
The nano-SiC doped MgB2/Fe wires were fabricated using a powder-in-tube method and an in-situ reaction process. The depression of Tc with increasing SiC doping level remained rather small due to the counterbalanced effect of Si and C co-doping.
Dou, Shi X. +7 more
core +2 more sources
Recent Advances of Two‐Dimensional MBene Materials: From Synthesis and Properties to Application
With the two‐dimensional MBenes center as the reference, the system presents a table of contents diagram that provides an overview of their properties, synthesis methods, and application fields. Two‐dimensional transition metal borides (MBenes) attract considerable research interest for their exceptional electrical conductivity, high mechanical ...
Chunxiao Wang, Jinming Wang, Junjie Wang
wiley +1 more source
Anomalous Magnetic Response of Annealed V0.60−xSixTi0.40 Alloys within the Superconducting Phase
Annealed V0.60−xSixTi0.40 alloys exhibit an anomalous magnetic response in their mixed state, where magnetization measured during cooling in the presence of a magnetic field is lower than during warming in the same field. This unusual thermomagnetic response, distinct from conventional type‐II superconductors, is attributed to the high‐field ...
Asi Khandelwal +2 more
wiley +1 more source
Point-Contact Spectroscopy of Two-Band Superconductor MgB2 [PDF]
invited talk at NATO ARW "Frontiers in Spectroscopy of Emergent Materials" 13 -19 Sept.
Yanson, I. K., Naidyuk, Yu. G.
openaire +2 more sources
Mgb2 Nonlinear Properties Investigated under Localized High RF Magnetic Field Excitation
In order to increase the accelerating gradient of Superconducting Radio Frequency (SRF) cavities, Magnesium Diboride (MgB2) opens up hope because of its high transition temperature and potential for low surface resistance in the high RF field regime ...
B. G. Ghamsari +7 more
core +3 more sources

