Phonon bottleneck limits vortex-induced quasiparticle relaxation in epitaxial NbN thin films

Q: What type of study is this?

This is a Quantitative Study study.

N. Haberkorn; Juan Camilo Zapata; Yeonkyu Lee; Chanyoung Lee; Jinyoung Yun; Jeehoon Kim

doi:10.1039/d5tc02466h

January 1, 2025Journal of Materials Chemistry C

Phonon bottleneck limits vortex-induced quasiparticle relaxation in epitaxial NbN thin films

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Key Points

Quasiparticle recombination times range from 10 to 80 ps, indicating the dynamics of vortex-induced processes.
A universal phonon bottleneck is identified, serving as a fundamental limit for ultrafast superconducting devices.
This analysis of epitaxial NbN thin films highlights crucial interactions affecting relaxation mechanisms.
Understanding these limitations may enable enhancements in the performance of superconducting technologies.

Implication

Experimental analysis reveals quasiparticle recombination times of 10–80 ps in NbN films, suggesting intrinsic limits from phonon bottlenecks.

Abstract

Vortex instabilities in epitaxial NbN films reveal quasiparticle recombination times of 10–80 ps. A universal phonon bottleneck emerges as the intrinsic limit for ultrafast superconducting devices.

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Cite This Study

Haberkorn et al. (2025) studied this question.

synapsesocial.com/papers/68e040eda99c246f578b3562 https://doi.org/10.1039/d5tc02466h

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Phonon bottleneck limits vortex-induced quasiparticle relaxation in epitaxial NbN thin films

Key Points

Implication

Abstract

Discussion

Cite This Study

Phonon bottleneck limits vortex-induced quasiparticle relaxation in epitaxial NbN thin films

Key Points

Implication

Abstract

Discussion

Cite This Study

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