Microwave surface impedance measurements on the heavy fermion superconductor UPt3

C. T. Lin; Bimal K. Sarma; J. B. Ketterson

doi:10.1016/S0921-4526(98)01133-8

Microwave surface impedance measurements on the heavy fermion superconductor UPt₃

C. T. Lin, Bimal K. Sarma, J. B. Ketterson

Physics and Astronomy

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

Abstract

We have used cavity perturbation techniques to study the microwave surface impedance of the heavy fermion intermetalic compound UPt₃ in the superconducting and normal states. The surface impedance as a function of temperature was measured in the frequency range from ∼ 9 to 38 GHz. These microwave photon energies are about 20% to 95% of the estimated zero-temperature energy gap of UPt₃. A change of slope was observed in the resistance vs. temperature curves at T_c. No evidence for a collective mode was observed for all the frequencies down to the lowest temperature reached ( ∼ 0.1 K).

Original language	English (US)
Pages (from-to)	654-655
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	259-261
DOIs	https://doi.org/10.1016/S0921-4526(98)01133-8
State	Published - 1999

Funding

This research was supported by the National Science Foundation under grant DMR 96-23682.

Keywords

Microwave
Superconductor
UPt

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

Access to Document

10.1016/S0921-4526(98)01133-8

Cite this

@article{b083ea8de6e74655b632eeea87481391,

title = "Microwave surface impedance measurements on the heavy fermion superconductor UPt3",

abstract = "We have used cavity perturbation techniques to study the microwave surface impedance of the heavy fermion intermetalic compound UPt3 in the superconducting and normal states. The surface impedance as a function of temperature was measured in the frequency range from ∼ 9 to 38 GHz. These microwave photon energies are about 20% to 95% of the estimated zero-temperature energy gap of UPt3. A change of slope was observed in the resistance vs. temperature curves at Tc. No evidence for a collective mode was observed for all the frequencies down to the lowest temperature reached ( ∼ 0.1 K).",

keywords = "Microwave, Superconductor, UPt",

author = "Lin, {C. T.} and Sarma, {Bimal K.} and Ketterson, {J. B.}",

note = "Funding Information: This research was supported by the National Science Foundation under grant DMR 96-23682.",

year = "1999",

doi = "10.1016/S0921-4526(98)01133-8",

language = "English (US)",

volume = "259-261",

pages = "654--655",

journal = "Physica B: Condensed Matter",

issn = "0921-4526",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Microwave surface impedance measurements on the heavy fermion superconductor UPt3

AU - Lin, C. T.

AU - Sarma, Bimal K.

AU - Ketterson, J. B.

N1 - Funding Information: This research was supported by the National Science Foundation under grant DMR 96-23682.

PY - 1999

Y1 - 1999

N2 - We have used cavity perturbation techniques to study the microwave surface impedance of the heavy fermion intermetalic compound UPt3 in the superconducting and normal states. The surface impedance as a function of temperature was measured in the frequency range from ∼ 9 to 38 GHz. These microwave photon energies are about 20% to 95% of the estimated zero-temperature energy gap of UPt3. A change of slope was observed in the resistance vs. temperature curves at Tc. No evidence for a collective mode was observed for all the frequencies down to the lowest temperature reached ( ∼ 0.1 K).

AB - We have used cavity perturbation techniques to study the microwave surface impedance of the heavy fermion intermetalic compound UPt3 in the superconducting and normal states. The surface impedance as a function of temperature was measured in the frequency range from ∼ 9 to 38 GHz. These microwave photon energies are about 20% to 95% of the estimated zero-temperature energy gap of UPt3. A change of slope was observed in the resistance vs. temperature curves at Tc. No evidence for a collective mode was observed for all the frequencies down to the lowest temperature reached ( ∼ 0.1 K).

KW - Microwave

KW - Superconductor

KW - UPt

UR - http://www.scopus.com/inward/record.url?scp=9344244121&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=9344244121&partnerID=8YFLogxK

U2 - 10.1016/S0921-4526(98)01133-8

DO - 10.1016/S0921-4526(98)01133-8

M3 - Article

AN - SCOPUS:9344244121

SN - 0921-4526

VL - 259-261

SP - 654

EP - 655

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

ER -