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Related Concept Videos

Types Of Superconductors01:28

Types Of Superconductors

1.0K
A superconductor is a substance that offers zero resistance to the electric current when it drops below a critical temperature. Zero resistance is not the only interesting phenomenon as materials reach their transition temperatures. A second effect is the exclusion of magnetic fields. This is known as the Meissner effect. A light, permanent magnet placed over a superconducting sample will levitate in a stable position above the superconductor. High-speed trains that levitate on strong...
1.0K
Superconductor01:24

Superconductor

1.2K
A substance that reaches superconductivity, a state in which magnetic fields cannot penetrate, and there is no electrical resistance, is referred to as a superconductor. In 1911, Heike Kamerlingh Onnes of Leiden University, a Dutch physicist, observed a relation between the temperature and the resistance of the element mercury. The mercury sample was then cooled in liquid helium to study the linear dependence of resistance on temperature. It was observed that, as the temperature decreased, the...
1.2K
Double Resonance Techniques: Overview01:12

Double Resonance Techniques: Overview

241
Double resonance techniques in Nuclear Magnetic Resonance (NMR) spectroscopy involve the simultaneous application of two different frequencies or radiofrequency pulses to manipulate and observe two distinct nuclear spins. One important application of double resonance is spin decoupling, which selectively suppresses coupling with one type of nucleus while observing the NMR signal from another nucleus, simplifying the spectrum and enhancing resolution.
Spin decoupling is usually achieved by...
241
Resonance and Hybrid Structures02:16

Resonance and Hybrid Structures

17.0K
According to the theory of resonance, if two or more Lewis structures with the same arrangement of atoms can be written for a molecule, ion, or radical, the actual distribution of electrons is an average of that shown by the various Lewis structures.
Resonance Structures and Resonance Hybrids
The Lewis structure of a nitrite anion (NO2−) may actually be drawn in two different ways, distinguished by the locations of the N–O and N=O bonds.
17.0K
Atomic Spectroscopy: Effects of Temperature01:27

Atomic Spectroscopy: Effects of Temperature

363
Atomization, converting samples into gas-phase atoms and ions, is essential for atomic spectroscopy. The flame temperature required for atomization affects the efficiency of the atomic spectroscopic methods by increasing the atomization efficiency and the relative population of the excited and ground states.
At thermal equilibrium, the relative populations of excited and ground state atoms can be estimated using the Maxwell–Boltzmann distribution. For example, an increase in temperature...
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Hybridization of Atomic Orbitals II03:35

Hybridization of Atomic Orbitals II

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sp3d and sp3d 2 Hybridization
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Updated: Jul 17, 2025

Scalable Quantum Integrated Circuits on Superconducting Two-Dimensional Electron Gas Platform
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Hybrid quantum systems with high-T[Formula: see text] superconducting resonators.

Z Velluire-Pellat1, E Maréchal1, N Moulonguet1

  • 1Laboratoire de Physique et d'Étude des Matériaux, ESPCI Paris, Université PSL, CNRS, Sorbonne Université, Paris, France.

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|September 1, 2023
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Summary

High-temperature superconducting resonators were fabricated and tested for electron spin resonance. These devices enable coherent coupling with molecular spins, revealing antiferromagnetic behavior below 2 K.

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Area of Science:

  • Condensed Matter Physics
  • Quantum Optics
  • Materials Science

Background:

  • Superconducting microwave resonators are key components in microwave circuits.
  • High-temperature cuprate superconductors offer advantages over conventional low-temperature superconductors for wider operating ranges.
  • Developing functional circuits and hybrid quantum systems requires advanced resonator technologies.

Purpose of the Study:

  • To realize and characterize high-temperature superconducting coplanar waveguide resonators.
  • To investigate the performance of these resonators in electron spin resonance (ESR) measurements.
  • To explore spin-cavity hybridization and magnetic coupling in molecular spin ensembles.

Main Methods:

  • Fabrication of high-temperature superconducting coplanar waveguide resonators.
  • Tuning resonator coupling regimes (undercoupled to overcoupled) via device geometry.
  • Performing electron spin resonance (ESR) measurements on a molecular spin ensemble.
  • Analyzing temperature-dependent Rabi splitting and spin relaxation times.

Main Results:

  • Successful realization of high-temperature superconducting coplanar waveguide resonators.
  • Demonstration of tunable coupling regimes, from lossy to lossless.
  • Observation of spin-cavity hybridization indicating coherent coupling between microwave fields and spins.
  • Evidence of antiferromagnetic coupling in the molecular spin ensemble below 2 K.

Conclusions:

  • High-temperature superconducting resonators are promising for developing advanced functional circuits.
  • These resonators offer novel approaches for creating hybrid quantum systems.
  • The study demonstrates a new method for electron spin resonance measurements across a broad range of temperatures and magnetic fields.