Results 41 to 50 of about 38,658 (199)

Signatures of the Correlated‐Hopping Interaction in Non‐Linear Transport Through a Quantum Dot

Annalen der Physik, EarlyView.
Non‐linear thermoelectric transport through a quantum dot is studied, in order to elucidate the signatures of so‐called correlated hopping. The line shapes of the differential conductance and the Seebeck coefficient as functions of gate voltage are clear indicators of this important interaction term.
Ulrich Eckern, Karol I. Wysokiński
wiley   +1 more source

Charged Pion Condensation and Color Superconductivity Phenomena in Chirally Asymmetric Dense Quark Matter

Progress of Theoretical and Experimental Physics
Abstract In this paper, the question of the influence of color superconductivity on the formation of a phase with condensation of charged pions in dense, chirally asymmetric quark matter is studied. We consider it within the framework of the massless Nambu–Jona-Lasinio (NJL) model with a diquark interaction channel at zero temperature ...
T G Khunjua, K G Klimenko, R N Zhokhov
openaire   +2 more sources

Enhancing Signal Purity in Josephson Structure Measurements

Advanced Physics Research, EarlyView.
A low‐noise signal measurement system for dilution refrigerators is presented, combining multistage cryogenic filtering and electromagnetic shielding to suppress broad‐spectrum noise. The setup enables sub‐nanoampere switching current measurements in Josephson junctions, surpassing commercial systems.
Ivan A. Nazhestkin, Georgy I. Gubochkin, Jonathan Shvartzberg, Sai‐Prasad M. Rajam, Sergei V. Egorov, Vladimir L. Gurtovoi, Valery V. Ryazanov, Vasily S. Stolyarov, Dmitry S. Yakovlev   +8 more
wiley   +1 more source

Formation of gapless phases ofK0condensed color-flavor locked superconducting quark matter

Physical Review D, 2007
Electric and color neutral solutions, and the critical conditions for the formation of gapless color superconductors, are investigated in $K^0$ condensed color-flavor locked quark matter for nonzero strange quark mass. We show that as the strange quark mass increases, gapless modes for up-strange quark pairing occur first, followed by down-strange ...
Xiao Bing Zhang, Xiao Bing Zhang, J. I. Kapusta   +2 more
openaire   +3 more sources

Ferromagnetic Quantum Critical Fluctuations and Anomalous Coexistence of Ferromagnetism and Superconductivity in UCoGe Revealed by Co-NMR and NQR Studies(Condensed matter: electronic structure and electrical, magnetic, and optical properties) [PDF]

, 2007
Co nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) studies were carried out for the recently discovered UCoGe, in which the ferromagnetic and superconducting (SC) transition...
T. Ohta, Y. Nakai, Y. Ihara, K. Ishida, K. Deguchi, N. Sato, I. Satoh   +6 more
semanticscholar   +1 more source

Integrating First Principles Calculations and Machine Learning to Study the ReNiO2/Ti3C2 Heterojunctions for Sodium Ion Batteries

Advanced Physics Research, EarlyView.
First‐principles calculations demonstrate that the Re1‐xSrxNiO2/Ti3C2 heterostructure exhibits metallic characteristics, with concurrent enhancement in both electronic conductivity and ionic mobility. Machine learning analysis further reveals that strain, lattice parameters and Sr doping concentration critically influence the conductivity.
Yuanyuan Cui, Chengyu Zhang, Luxin Niu, Jiao Zheng, Xin Liu, Sihan Yang, Yanfeng Gao   +6 more
wiley   +1 more source

Theoretical Investigation of Superconductivity Properties of Sr1−xKxFe2As2: A Two‐Band Green's Function Approach

Advanced Physics Research, EarlyView.
The superconducting (SC) transition temperature (TC) increases exponentially to a maximum as the SC coupling parameter increases for both intra‐ and inter‐band interactions. Strong electron–electron interaction within the hole intra‐band leads to the maximum TC.
Gedefaw Mebratie, Tamiru Negussie, Geberegziabher Kahsay   +2 more
wiley   +1 more source

Strain Engineering of Complex Oxide Membranes on Flexible Metallic Support

Advanced Physics Research, EarlyView.
Integrating freestanding complex oxides on flexible platforms holds great promise for next‐generation electronics. The successful integration and adhesion of freestanding single‐crystalline La0.7Sr0.3MnO3 membranes onto metal‐coated polymer substrates (Au, Pt, TiN) is demonstrated.
Eric Brand, Pol Salles, Alessandro Palliotto, Haiyuan Wang, Wei Chen, Edwin Dollekamp, Martí Ramis, Q. Li, Jakub Drnec, Juan Maria García‐Lastra, Mariona Coll, Nini Pryds, Dae‐Sung Park   +12 more
wiley   +1 more source

Anisotropy of the Characteristic Critical Fields and Length Scales of Sr1 − xKxFe2As2 Superconductor

Advanced Physics Research, EarlyView.
The upper critical magnetic field parallel to ab‐plane (HC2∥ab${\mathrm{H}}_{C2\Vert \textit{ab}}$) and upper critical magnetic field parallel to ‐caxis (HC2∥c$\mathrm{H}_{C2}^{\parallel c}$) decrease with temperature increase and vanish at the critical temperature. The angular dependence of upper critical magnetic field (HC2) show anisotropic behavior.
Gedefaw Mebratie, Tamiru Negussie, Geberegziabher Kahsay   +2 more
wiley   +1 more source

Interplay Between Spin‐Triplet Pairing and Ferromagnetism in Uranium Ditelluride

Nano Select, EarlyView.
This study investigates how spin triplet superconductivity and ferromagnetism interact in uranium ditelluride (UTe2). It shows that magnetic fluctuations strongly influence the superconducting behavior. The results suggest that ferromagnetic tendencies can contribute to the stabilization of spin triplet pairing. These findings provide new insights into
Habtamu Anagaw Muluneh, Gebregziabher Kahsay Hailemariam, Tamiru Negussie Wondim   +2 more
wiley   +1 more source