Universität zu Köln

Reinhoffer, C., Pilch, P., Reinold, A., Derendorf, P., Kovalev, S., Deinert, J. -c., Ilyakov, I., Ponomaryov, A., Chen, Min, Xu, Tie-Quan, Wang, Yue, Gan, Zi-Zhao, Wu, De-Sheng, Luo, Jian-Lin, Germanskiy, S., Mashkovich, E. A., Loosdrecht, P. H. M. van, Eremin, I. M. and Wang, Zhe (2022). High-order nonlinear terahertz probing of the two-band superconductor MgB2: Third- and fifth-order harmonic generation. Phys. Rev. B, 106 (21). COLLEGE PK: AMER PHYSICAL SOC. ISSN 2469-9969

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Abstract

We report on high-order harmonic generation in the two-band superconductor MgB2 driven by intense terahertz electromagnetic pulses. Third-and fifth-order harmonics are resolved in time domain and investigated as a function of temperature and in applied magnetic fields crossing the superconducting phase boundary. The high-order harmonics in the superconducting phase reflects nonequilibrium dynamics of the superconducting order parameter in MgB2, which is probed via nonlinear coupling to the terahertz field. The observed temperature and field dependence of the nonlinear response allows to establish the superconducting phase diagram.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Reinhoffer, C. UNSPECIFIED UNSPECIFIED UNSPECIFIED Pilch, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Reinold, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Derendorf, P. UNSPECIFIED UNSPECIFIED UNSPECIFIED Kovalev, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Deinert, J. -c. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ilyakov, I. UNSPECIFIED UNSPECIFIED UNSPECIFIED Ponomaryov, A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Chen, Min UNSPECIFIED UNSPECIFIED UNSPECIFIED Xu, Tie-Quan UNSPECIFIED UNSPECIFIED UNSPECIFIED Wang, Yue UNSPECIFIED UNSPECIFIED UNSPECIFIED Gan, Zi-Zhao UNSPECIFIED UNSPECIFIED UNSPECIFIED Wu, De-Sheng UNSPECIFIED UNSPECIFIED UNSPECIFIED Luo, Jian-Lin UNSPECIFIED UNSPECIFIED UNSPECIFIED Germanskiy, S. UNSPECIFIED UNSPECIFIED UNSPECIFIED Mashkovich, E. A. UNSPECIFIED UNSPECIFIED UNSPECIFIED Loosdrecht, P. H. M. van UNSPECIFIED UNSPECIFIED UNSPECIFIED Eremin, I. M. UNSPECIFIED UNSPECIFIED UNSPECIFIED Wang, Zhe UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-689284
DOI:	10.1103/PhysRevB.106.214514
Journal or Publication Title:	Phys. Rev. B
Volume:	106
Number:	21
Date:	2022
Publisher:	AMER PHYSICAL SOC
Place of Publication:	COLLEGE PK
ISSN:	2469-9969
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language MICROWAVE RESPONSE; MODE Multiple languages Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter Multiple languages
URI:	http://kups.ub.uni-koeln.de/id/eprint/68928