Results 81 to 90 of about 18,113,107 (230)

Spin density wave rather than tetragonal structure is prerequisite for superconductivity in La3Ni2O7-δ

open access: yesNature Communications
The pressure-induced high-temperature (T c ) superconductivity in nickelates La3Ni2O7-δ has sparked significant interest to explore its superconductivity at ambient pressure.
Mengzhu Shi   +14 more
doaj   +1 more source

The application of high temperature superconducting materials to power switches [PDF]

open access: yes, 2009
Superconducting switches may nd application in superconducting magnet systems that require energy extraction. Such superconducting switches could be bypass-switches that are operated in conjunction with a parallel resistor or dump-switches where all of ...
March, Stephen A   +2 more
core   +1 more source

Superconductivity in an infinite-layer nickelate superlattice

open access: yesNature Communications
Recent observations of superconductivity in infinite-layer nickelates offer insights into high-temperature superconductivity mechanisms. However, defects and dislocations in doped films complicate the realization of superconductivity, limiting current ...
Wen Xiao   +16 more
doaj   +1 more source

Is There a Metamaterial Route to High Temperature Superconductivity?

open access: yesAdvances 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   +1 more
doaj   +1 more source

Dual‐Functional Terahertz Manipulation of EuBa2Cu3O7 Superconductors via Cooper Pair Dynamics

open access: yesAdvanced Science, EarlyView.
We use a spintronic‐metasurface THz emitter to realize chiral THz generation. Using polarization‐tunable THz pulses, we investigate equilibrium and photoinduced THz responses in a 43 nm thick EuBa2Cu3O7 (EBCO) thin film. The EBCO film achieves 46.81 dB EMI shielding and 113% photoinduced THz modulation with 19.0 ps recovery, enabled by Cooper‐pair ...
Zhangshun Li   +10 more
wiley   +1 more source

p-wave triggered superconductivity in single-layer graphene on an electron-doped oxide superconductor

open access: yesNature Communications, 2017
Unconventional superconductivity may be triggered when graphene is deposited on a high temperature superconductor. Here, Di Bernardoet al. observe spectroscopic evidence for p-wave superconductivity in single layer graphene on an electron-doped cuprate ...
A. Di Bernardo   +12 more
doaj   +1 more source

Customized Itinerant Frequency Combs by Cascaded Nonlinear Effects

open access: yesAdvanced Science, EarlyView.
A cascaded third‐order nonlinear system generates an itinerant frequency comb with the comb center frequency decoupled from the cavity resonance. This enables arbitrary spectral scaling, flexible spacing adjustments, and real‐time central‐frequency engineering, allowing comb splicing and subdivision. The resulting versatility and reconfigurability open
Yi Wang   +8 more
wiley   +1 more source

Microscopic theory for high-T-c superconductivity

open access: yes, 1999
An understanding of superconductivity in the holes doped cuprates is formulated as resulting from (i) recovery of superexchange interactions at T(spin-gap), (ii) appearance of a holes clustering instability at the T(pseud-gap), and (iii) virtual spin ...
Panas, Itai,
core  

Enhancing Quasi‐Two‐Dimensional Electronic Structure in Bi2O2Se via Chlorine Substitution

open access: yesAdvanced Science, EarlyView.
We demonstrate chlorine substitution as an effective strategy to transform Bi2O2Se into an exfoliatable van der Waals superlattice. Key electronic band feature, including indirect bandgap, effective mass is well preserved, while the 2D character of the system is sufficiently enhanced.
Yong‐Zhen Jiang   +19 more
wiley   +1 more source

High-temperature conventional superconductivity

open access: yes, 2016
Conventional superconductors are described well by the Bardeen – Cooper – Schrieffer (BCS) theory (1957) and its related theories, all of which importantly put no explicit limit on transition temperature Tc.
Drozdov, A., Eremets, M.
core  

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