Double peaks on ac magnetization in a superconducting Pb-porous glass nanocomposite

Studies of temperature dependences of ac magnetization were carried out for a superconducting lead-porous glass nanocomposite. Double peaks were found on the imaginary part of ac magnetization which were accompanied with double steps on the real part. The lower-temperature anomalies in ac magnetizat...

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Bibliographic Details
Published inPhysics letters. A Vol. 374; no. 48; pp. 4942 - 4944
Main Authors Ciou, Y.S., Tien, C., Charnaya, E.V., Xing, D.Y., Kumzerov, Yu.A., Lee, M.K., Pirozerskii, A.L.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.11.2010
Subjects
Ac magnetization
Double peaks
Glass
Lead (metal)
Magnetization
Nanocomposites
Nanomaterials
Nanostructure
Pb-porous glass nanocomposite
Phase transition in vortex system
Solid state physics
Superconductivity
Double peaks
Pb-porous glass nanocomposite
Phase transition in vortex system
Superconductivity
Ac magnetization
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Summary:Studies of temperature dependences of ac magnetization were carried out for a superconducting lead-porous glass nanocomposite. Double peaks were found on the imaginary part of ac magnetization which were accompanied with double steps on the real part. The lower-temperature anomalies in ac magnetization differed noticeably when they were obtained upon cooling and warming. The double peaks were treated as two phase transitions in the vortex system: the liquid–solid transition which occurs close to the onset of superconductivity and solid–solid one which is triggered by superconductivity in confined lead islands.
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0375-9601
1873-2429
DOI:10.1016/j.physleta.2010.10.032