Magneto-microwave absorption study of flux depinning in Hg0.7Pb0.3Ba2Ca2Cu3O8 superconductor

Frank J. Owens; A. G. Rinzler; Z. Iqbal

doi:10.1016/0921-4534(94)00588-5

Magneto-microwave absorption study of flux depinning in Hg_0.7Pb_0.3Ba₂Ca₂Cu₃O₈ superconductor

Frank J. Owens, A. G. Rinzler, Z. Iqbal

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

6 Scopus citations

Abstract

The microwave absorption in the superconducting state of single-phase Hg_0.7Pb_0.3Ba₂Ca₂Cu₃O_8+x havi ng a T_c of 133 K is shown to depend linearly on the square root of the DC magnetic field strength with a change of slope occuring at a DC magnetic field B^* which corresponds to an onset of an irreversibility in the field dependence of the microwave absorption. A measurement of the temperature dependence of B^* enables a determination of an H-T irreversibility line at 9.2 GHz. A comparison of the magnetic-field-induced dissipation with that the Y-Ba-Cu-O indicates that the Hg-Pb-Ba-Ca-Cu-O material has a larger pinning barrier to flux detrapping at 77 K.

Original language	English (US)
Pages (from-to)	30-34
Number of pages	5
Journal	Physica C: Superconductivity and its applications
Volume	233
Issue number	1-2
DOIs	https://doi.org/10.1016/0921-4534(94)00588-5
State	Published - Nov 10 1994
Externally published	Yes

All Science Journal Classification (ASJC) codes

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

Access to Document

10.1016/0921-4534(94)00588-5

Cite this

@article{f39388f403c34121b0475a750d56edf3,

title = "Magneto-microwave absorption study of flux depinning in Hg0.7Pb0.3Ba2Ca2Cu3O8 superconductor",

abstract = "The microwave absorption in the superconducting state of single-phase Hg0.7Pb0.3Ba2Ca2Cu3O8+x havi ng a Tc of 133 K is shown to depend linearly on the square root of the DC magnetic field strength with a change of slope occuring at a DC magnetic field B* which corresponds to an onset of an irreversibility in the field dependence of the microwave absorption. A measurement of the temperature dependence of B* enables a determination of an H-T irreversibility line at 9.2 GHz. A comparison of the magnetic-field-induced dissipation with that the Y-Ba-Cu-O indicates that the Hg-Pb-Ba-Ca-Cu-O material has a larger pinning barrier to flux detrapping at 77 K.",

author = "Owens, {Frank J.} and Rinzler, {A. G.} and Z. Iqbal",

year = "1994",

month = nov,

day = "10",

doi = "10.1016/0921-4534(94)00588-5",

language = "English (US)",

volume = "233",

pages = "30--34",

journal = "Physica C: Superconductivity and its applications",

issn = "0921-4534",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Magneto-microwave absorption study of flux depinning in Hg0.7Pb0.3Ba2Ca2Cu3O8 superconductor

AU - Owens, Frank J.

AU - Rinzler, A. G.

AU - Iqbal, Z.

PY - 1994/11/10

Y1 - 1994/11/10

N2 - The microwave absorption in the superconducting state of single-phase Hg0.7Pb0.3Ba2Ca2Cu3O8+x havi ng a Tc of 133 K is shown to depend linearly on the square root of the DC magnetic field strength with a change of slope occuring at a DC magnetic field B* which corresponds to an onset of an irreversibility in the field dependence of the microwave absorption. A measurement of the temperature dependence of B* enables a determination of an H-T irreversibility line at 9.2 GHz. A comparison of the magnetic-field-induced dissipation with that the Y-Ba-Cu-O indicates that the Hg-Pb-Ba-Ca-Cu-O material has a larger pinning barrier to flux detrapping at 77 K.

AB - The microwave absorption in the superconducting state of single-phase Hg0.7Pb0.3Ba2Ca2Cu3O8+x havi ng a Tc of 133 K is shown to depend linearly on the square root of the DC magnetic field strength with a change of slope occuring at a DC magnetic field B* which corresponds to an onset of an irreversibility in the field dependence of the microwave absorption. A measurement of the temperature dependence of B* enables a determination of an H-T irreversibility line at 9.2 GHz. A comparison of the magnetic-field-induced dissipation with that the Y-Ba-Cu-O indicates that the Hg-Pb-Ba-Ca-Cu-O material has a larger pinning barrier to flux detrapping at 77 K.

UR - http://www.scopus.com/inward/record.url?scp=0028540808&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0028540808&partnerID=8YFLogxK

U2 - 10.1016/0921-4534(94)00588-5

DO - 10.1016/0921-4534(94)00588-5

M3 - Article

AN - SCOPUS:0028540808

SN - 0921-4534

VL - 233

SP - 30

EP - 34

JO - Physica C: Superconductivity and its applications

JF - Physica C: Superconductivity and its applications

IS - 1-2

ER -

Magneto-microwave absorption study of flux depinning in Hg_0.7Pb_0.3Ba₂Ca₂Cu₃O₈ superconductor

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this