Results 81 to 90 of about 151,428 (229)

Fabrication of superconducting nanowires from ultrathin MgB2 films via focused ion beam milling

open access: yesAIP Advances, 2015
High quality superconducting nanowires were fabricated from ultrathin MgB2 films by a focused ion beam milling technique. The precursor MgB2 films in 10 nm thick were grown on MgO substrates by using a hybrid physical-chemical vapor deposition method ...
Chen Zhang   +7 more
doaj   +1 more source

Borophene: Crucial Challenges and the Way Forward

open access: yesAdvanced Science, EarlyView.
This review explores the challenges and progress in borophene research, focusing on synthesis strategies, structural properties, and potential applications. It highlights key experimental breakthroughs, discusses theoretical insights into borophene's unique features, and addresses pathways for overcoming stability and scalability issues.
Zhixuan Li   +3 more
wiley   +1 more source

Nonreciprocal superconductivity

open access: yesScience Advances
We introduce the notion of nonreciprocal superconductors where inversion and time-reversal symmetries are broken, giving rise to an asymmetric energy dispersion. We demonstrate that nonreciprocal superconductivity can be detected by Andreev reflection.
Margarita Davydova, Max Geier, Liang Fu
openaire   +3 more sources

Magnetoresistance in the superconducting state at the (111) LaAlO$_3$/SrTiO$_3$ interface

open access: yes, 2017
Condensed matter systems that simultaneously exhibit superconductivity and ferromagnetism are rare due the antagonistic relationship between conventional spin-singlet superconductivity and ferromagnetic order.
Ariando   +5 more
core   +1 more source

Semiconducting THO‐C3N Monolayers for Ultrahigh Anisotropic Carrier Mobility

open access: yesAdvanced Science, EarlyView.
A precise site‐specific N‐doping strategy that drives a secondary electronic transition in net W is proposed, enabling the electronic properties transition from metal to Dirac semimetal and ultimately to semiconductor. The obtained THO‐C3N‐2 and THO‐C3N‐3 semiconductors exhibit high carrier mobilities and pronounced mobility anisotropy, with THO‐C3N‐2 ...
Rui Tan   +7 more
wiley   +1 more source

Transmission of Radio‐Frequency Waves and Nuclear Magnetic Resonance in Lanthanum Superhydrides

open access: yesAdvanced Science, EarlyView.
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

Theory of superconductivity of carbon nanotubes and graphene

open access: yes, 2006
We present a new mechanism of carbon nanotube superconductivity that originates from edge states which are specific to graphene. Using on-site and boundary deformation potentials which do not cause bulk superconductivity, we obtain an appreciable ...
Bachtold A.   +26 more
core   +1 more source

Ultrathin‐Gold‐Resonators‐Enabled Bolometers with High Linearity, Responsivity, and Repeatability

open access: yesAdvanced Science, EarlyView.
This work demonstrates ultrathin gold nanomechanical resonators operating in HF/VHF bands, unveiling their potential for laser power sensing. By exploiting frequency shifts resulting from laser‐induced thermal tension, these devices can function as sensitive nanoscale bolometers, with outstanding linearity, responsivity, and repeatability. The findings
Jiaqi Wu   +9 more
wiley   +1 more source

Carbon Redox Chemistry

open access: yesGeophysical Monograph Series, Page 67-75., 2020

This book is Open Access. A digital copy can be downloaded for free from Wiley Online Library.

Explores the behavior of carbon in minerals, melts, and fluids under extreme conditions

Carbon trapped in diamonds and carbonate-bearing rocks in subduction zones are examples of the continuing exchange of substantial carbon ...
Choong‐Shik Yoo
wiley  

+1 more source

Pressure-induced superconductivity in Eu$_{0.5}$Ca$_{0.5}$Fe$_2$As$_2$ : FeAs-based superconductivity hidden by antiferromagnetism of Eu sublattice

open access: yes, 2009
To clarify superconductivity in EuFe2As2 hidden by antiferromagnetism of Eu2+, we investigated a Ca-substituted sample, Eu0.5Ca0.5Fe2As2, under high pressure.
Alireza P. L.   +32 more
core   +1 more source

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