Results 51 to 60 of about 4,182 (134)

Is There a Metamaterial Route to High Temperature Superconductivity?

Advances in Condensed Matter Physics, 2014
Superconducting properties of a material such as electron-electron interactions and the critical temperature of superconducting transition can be expressed via the effective dielectric response function εeff (q,ω) of the material.
Igor I. Smolyaninov, Vera N. Smolyaninova   +1 more
doaj   +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

Power and temperature dependent model for high Q superconductor resonators

APL Quantum
Measuring the internal quality factor of coplanar waveguide superconducting resonators is an established method of determining small losses in superconducting devices. Often, resonator losses are attributed to two-level system (TLS) defects using a power
Ashish Alexander, Christopher G. Weddle, Christopher J. K. Richardson   +2 more
doaj   +1 more source

Predicting the critical superconducting temperature using the random forest, MLP neural network, M5 model tree and multivariate linear regression

Alexandria Engineering Journal
Using a random forest regression (RFR) machine learning technique, the critical temperature (Tc) of a superconductor was predicted in the context of Industry 4.0 in this study using features derived from the material's physico-chemical properties ...
Paulino José García Nieto, Esperanza García Gonzalo, Luis Alfonso Menéndez García, Laura Álvarez–de Prado, Antonio Bernardo Sánchez   +4 more
doaj   +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

Single-crystalline boron-doped diamond superconducting quantum interference devices with regrowth-induced step edge structure

Scientific Reports, 2019
Superconducting quantum interference devices (SQUIDs) are currently used as magnetic flux detectors with ultra-high sensitivity for various applications such as medical diagnostics and magnetic material microstructure analysis.
Taisuke Kageura, Masakuni Hideko, Ikuto Tsuyuzaki, Aoi Morishita, Akihiro Kawano, Yosuke Sasama, Takahide Yamaguchi, Yoshihiko Takano, Minoru Tachiki, Shuuichi Ooi, Kazuto Hirata, Shunichi Arisawa, Hiroshi Kawarada   +12 more
doaj   +1 more source

Self-Propagating High Temperature Synthesis of MgB2 Superconductor in High-Pressure of Argon Condition

Eurasian Chemico-Technological Journal, 2017
Magnesium diboride can be synthesized under argon ambient, elevated or high pressures. High-pressure syntheses are promising methods for manufacturing of the bulk MgB2 superconductor material.
S. Tolendiuly, S. M. Fomenko, G. C. Dannangoda, K. S. Martirosyan   +3 more
doaj   +1 more source

Gapless Superconductivity From Extremely Dilute Magnetic Disorder in 2H‐NbSe2‐xSx

Advanced Materials, EarlyView.
We demonstrate that 2H‐NbSe2‐xSx hosts gapless superconductivity at unexpectedly low magnetic impurity concentrations. Combining STM, Bogoliubovde Gennes simulations, DFT, and quasiparticle interference, we comprehensively study the development of gapless behavior and show that SeS substitution reshapes the band structure, enhances nesting, and drives ...
Jose Antonio Moreno, Mercè Roig, Víctor Barrena, Edwin Herrera, Alberto M. Ruiz, Samuel Mañas‐Valero, Antón Fente, Anita Smeets, Jazmín Aragón, Yanina Fasano, Beilun Wu, Maria N. Gastiasoro, Eugenio Coronado, José J. Baldoví, Brian M. Andersen, Isabel Guillamón, Hermann Suderow   +16 more
wiley   +1 more source

Pinning and Dynamics of Abrikosov Vortices, Crystalline Defects, and Problem of Critical Current Density in Monocrystals and Biaxially-Oriented YBa2Cu3O7−δ High-Temperature Superconductor Films

Успехи физики металлов, 2000
One of the most important problems of high-temperature superconductors (HTSC) is considered — the problem of cardinal differences between the values of bulk pinning force and the critical current density in bulk and thin-film materials of high ...
V. M. Pan
doaj   +1 more source

Surface Reordering During Layer‐by‐Layer Growth on SrTiO3

Advanced Materials, EarlyView.
Surface structures (left) derived from DFT‐constrained fitting to crystal truncation rods measured by synchrotron X‐ray scattering (right) after each monolayer of deposition during the MBE growth of SrTiO3${\rm SrTiO}_{3}$ (001). The bottom panel shows the bare substrate, the middle panel shows island formation upon deposition of a single layer of SrO,
I‐Cheng Tung, Xi Yan, June‐Hyuk Lee, Yang Liu, Seo Hyoung Chang, Zhenlin Luo, Friederike Wrobel, Nicholas T. Cheung, Kaden R. Lopez, Michael J. Bedzyk, Hawoong Hong, John W. Freeland, Hua Zhou, Kendra Letchworth‐Weaver, Dillon D. Fong   +14 more
wiley   +1 more source