Microwave absorption measurements of the heavy-fermion superconductor CeCoIn5

I. P. Nevirkovets; O. Chernyashevskyy; C. Petrovic; J. B. Ketterson; Bimal K. Sarma

doi:10.1016/j.physc.2008.01.004

Microwave absorption measurements of the heavy-fermion superconductor CeCoIn₅

I. P. Nevirkovets^*, O. Chernyashevskyy, C. Petrovic, J. B. Ketterson, Bimal K. Sarma

^*Corresponding author for this work

Physics and Astronomy

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

3 Scopus citations

Abstract

A simple technique involving transmission through a copper-wire meander line is utilized to probe the microwave absorption of the heavy-fermion superconductor CeCoIn₅ in the frequency range below 20 GHz. The measurements do not show features identifiable with absorption into order parameter collective modes, as observed earlier in UBe₁₃, but instead show a rather rapid change in the transmitted signal vs. temperature in the range 8.5-10.0 GHz, possibly implying the opening a low-energy dissipation channel in CeCoIn₅.

Original language	English (US)
Pages (from-to)	432-434
Number of pages	3
Journal	Physica C: Superconductivity and its applications
Volume	468
Issue number	5
DOIs	https://doi.org/10.1016/j.physc.2008.01.004
State	Published - Mar 1 2008

Keywords

Heavy-fermion superconductor
Microwave absorption
Superconductivity

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2008.01.004

Cite this

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title = "Microwave absorption measurements of the heavy-fermion superconductor CeCoIn5",

abstract = "A simple technique involving transmission through a copper-wire meander line is utilized to probe the microwave absorption of the heavy-fermion superconductor CeCoIn5 in the frequency range below 20 GHz. The measurements do not show features identifiable with absorption into order parameter collective modes, as observed earlier in UBe13, but instead show a rather rapid change in the transmitted signal vs. temperature in the range 8.5-10.0 GHz, possibly implying the opening a low-energy dissipation channel in CeCoIn5.",

keywords = "Heavy-fermion superconductor, Microwave absorption, Superconductivity",

author = "Nevirkovets, {I. P.} and O. Chernyashevskyy and C. Petrovic and Ketterson, {J. B.} and Sarma, {Bimal K.}",

note = "Funding Information: This work was supported by the National Science Foundation under the Grants DMR-0509357 and DMR-0509691. Part of this work was carried out at the Brookhaven National Laboratory which is operated for the US Department of Energy by Brookhaven Science Associates (DE-Ac02-98CH10886). Copyright: Copyright 2008 Elsevier B.V., All rights reserved.",

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AU - Chernyashevskyy, O.

AU - Petrovic, C.

AU - Ketterson, J. B.

AU - Sarma, Bimal K.

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N2 - A simple technique involving transmission through a copper-wire meander line is utilized to probe the microwave absorption of the heavy-fermion superconductor CeCoIn5 in the frequency range below 20 GHz. The measurements do not show features identifiable with absorption into order parameter collective modes, as observed earlier in UBe13, but instead show a rather rapid change in the transmitted signal vs. temperature in the range 8.5-10.0 GHz, possibly implying the opening a low-energy dissipation channel in CeCoIn5.

AB - A simple technique involving transmission through a copper-wire meander line is utilized to probe the microwave absorption of the heavy-fermion superconductor CeCoIn5 in the frequency range below 20 GHz. The measurements do not show features identifiable with absorption into order parameter collective modes, as observed earlier in UBe13, but instead show a rather rapid change in the transmitted signal vs. temperature in the range 8.5-10.0 GHz, possibly implying the opening a low-energy dissipation channel in CeCoIn5.

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