Petahertz non-linear current in a centrosymmetric organic superconductor

Y. Kawakami; T. Amano; H. Ohashi; H. Itoh; Y. Nakamura; H. Kishida; T. Sasaki; G. Kawaguchi; H. M. Yamamoto; K. Yamamoto; S. Ishihara; K. Yonemitsu; S. Iwai

doi:10.1038/s41467-020-17776-3

Nature Communications (Aug 2020)

Petahertz non-linear current in a centrosymmetric organic superconductor

Y. Kawakami,
T. Amano,
H. Ohashi,
H. Itoh,
Y. Nakamura,
H. Kishida,
T. Sasaki,
G. Kawaguchi,
H. M. Yamamoto,
K. Yamamoto,
S. Ishihara,
K. Yonemitsu,
S. Iwai

Affiliations

Y. Kawakami: Department of Physics, Tohoku University
T. Amano: Department of Physics, Tohoku University
H. Ohashi: Department of Physics, Tohoku University
H. Itoh: Department of Physics, Tohoku University
Y. Nakamura: Department of Applied Physics, Nagoya University
H. Kishida: Department of Applied Physics, Nagoya University
T. Sasaki: Institute for Materials Research, Tohoku University
G. Kawaguchi: Institute for Molecular Science
H. M. Yamamoto: Institute for Molecular Science
K. Yamamoto: Department of Applied Physics, Okayama University of Science
S. Ishihara: Department of Physics, Tohoku University
K. Yonemitsu: Department of Physics, Chuo University
S. Iwai: Department of Physics, Tohoku University

DOI: https://doi.org/10.1038/s41467-020-17776-3
Journal volume & issue: Vol. 11, no. 1
pp. 1 – 6

Abstract

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Here the authors show second harmonic generation (SHG) from a centrosymmetric organic superconductor κ-(BEDT-TTF)2Cu[N(CN)2]Br. They find unusual temperature dependence and CEP-sensitive nature of the SHG which are explained in terms of nonlinear current.

Published in Nature Communications

ISSN: 2041-1723 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science
Website: https://www.nature.com/ncomms/

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