Pair-Breaking and Superconducting State Recovery Dynamics in MgB 4

J. Demsar; R. D. Averitt; Antoinette Jane Taylor; V. V. Kabanov; W. N. Kang; H. J. Kim; E. M. Choi; S. I. Lee

Pair-Breaking and Superconducting State Recovery Dynamics in MgB ₄

J. Demsar
, R. D. Averitt
, Antoinette Jane Taylor
, V. V. Kabanov
, W. N. Kang
, H. J. Kim
, E. M. Choi
, S. I. Lee

Los Alamos National Laboratory

Research output: Contribution to journal › Article › peer-review

110 Scopus citations

Abstract

The photoexcited carrier dynamics in superconducting MgB₂ was studied. The optical pump-THz probe (OPTP) and optical pump-optical probe (OPOP) techniques were used for the study. Cooper pair-breaking dynamics (PBD) was resolved which strongly depended on temperature and photoexcitation intensity. The analysis of PBD suggests that they arise from the fact that in MgB ₂ photoexcitation is initially followed by energy relaxation to high frequency phonons instead of e-e thermalization.

Original language	English
Pages (from-to)	2670021-2670024
Number of pages	4
Journal	Physical Review Letters
Volume	91
Issue number	26 I
State	Published - Dec 31 2003

Cite this

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title = "Pair-Breaking and Superconducting State Recovery Dynamics in MgB 4",

abstract = "The photoexcited carrier dynamics in superconducting MgB2 was studied. The optical pump-THz probe (OPTP) and optical pump-optical probe (OPOP) techniques were used for the study. Cooper pair-breaking dynamics (PBD) was resolved which strongly depended on temperature and photoexcitation intensity. The analysis of PBD suggests that they arise from the fact that in MgB 2 photoexcitation is initially followed by energy relaxation to high frequency phonons instead of e-e thermalization.",

author = "J. Demsar and Averitt, \{R. D.\} and Taylor, \{Antoinette Jane\} and Kabanov, \{V. V.\} and Kang, \{W. N.\} and Kim, \{H. J.\} and Choi, \{E. M.\} and Lee, \{S. I.\}",

year = "2003",

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language = "English",

volume = "91",

pages = "2670021--2670024",

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TY - JOUR

T1 - Pair-Breaking and Superconducting State Recovery Dynamics in MgB 4

AU - Demsar, J.

AU - Averitt, R. D.

AU - Taylor, Antoinette Jane

AU - Kabanov, V. V.

AU - Kang, W. N.

AU - Kim, H. J.

AU - Choi, E. M.

AU - Lee, S. I.

PY - 2003/12/31

Y1 - 2003/12/31

N2 - The photoexcited carrier dynamics in superconducting MgB2 was studied. The optical pump-THz probe (OPTP) and optical pump-optical probe (OPOP) techniques were used for the study. Cooper pair-breaking dynamics (PBD) was resolved which strongly depended on temperature and photoexcitation intensity. The analysis of PBD suggests that they arise from the fact that in MgB 2 photoexcitation is initially followed by energy relaxation to high frequency phonons instead of e-e thermalization.

AB - The photoexcited carrier dynamics in superconducting MgB2 was studied. The optical pump-THz probe (OPTP) and optical pump-optical probe (OPOP) techniques were used for the study. Cooper pair-breaking dynamics (PBD) was resolved which strongly depended on temperature and photoexcitation intensity. The analysis of PBD suggests that they arise from the fact that in MgB 2 photoexcitation is initially followed by energy relaxation to high frequency phonons instead of e-e thermalization.

UR - https://www.scopus.com/pages/publications/1042277407

M3 - Article

SN - 0031-9007

VL - 91

SP - 2670021

EP - 2670024

JO - Physical Review Letters

JF - Physical Review Letters

IS - 26 I

ER -

Pair-Breaking and Superconducting State Recovery Dynamics in MgB 4

Abstract

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Pair-Breaking and Superconducting State Recovery Dynamics in MgB ₄