Superconducting transition in Pb/Co nanocomposites: effect of Co volume fraction and external magnetic field

被引：0
|
作者：
Y. T. Xing
H. Micklitz
W. T. Herrera
T. G. Rappoport
E. Baggio-Saitovitch
机构：
[1] Centro Brasileiro de Pesquisas Físicas,
[2] Instituto de Física,undefined
[3] Universidade Federal do Rio de Janeiro,undefined
来源：
The European Physical Journal B | 2010年 / 76卷
关键词：
Vortex; Annealed Sample; Random Network; Transport Measurement; Vortex State;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Pb films embedded with homogeneously distributed cobalt (Co) nanoparticles (mean size 4.5 nm) have been prepared. Previous transport investigations have suggested that Co particles induce spontaneous vortices below the superconducting transition temperature (Tc) in zero external magnetic field. In this paper we study in detail the influence of the Co volume fraction and an external magnetic field on the superconducting transition in such composites. The large difference in Tc-reduction between the as-prepared and annealed samples can be attributed to the different superconducting coherence lengths and the resulting different diameters of the spontaneous vortices in these samples.
引用
收藏
页码：353 / 357
页数：4
相关论文
共 50 条
  • [1] Superconducting transition in Pb/Co nanocomposites: effect of Co volume fraction and external magnetic field
    Xing, Y. T.
    Micklitz, H.
    Herrera, W. T.
    Rappoport, T. G.
    Baggio-Saitovitch, E.
    EUROPEAN PHYSICAL JOURNAL B, 2010, 76 (03): : 353 - 357
  • [2] Effect of external magnetic field on anisotropy of Co/Cu multilayer nanowires
    Cho, Ji Ung
    Min, Ji Hyun
    Ko, Seung Pil
    Soh, Joon Young
    Kim, Young Keun
    Wu, Jun-Hua
    Choi, Sung H.
    JOURNAL OF APPLIED PHYSICS, 2006, 99 (08)
  • [3] Superconducting Spin Valve Effect in a Co/Pb/Co Heterostructure with Insulating Spacers
    Kamashev, A. A.
    Garif'yanov, N. N.
    Validov, A. A.
    Kataev, V. E.
    Osin, A. S.
    Fominov, Ya. V.
    Garifullin, I. A.
    JETP LETTERS, 2024, 119 (04) : 305 - 309
  • [4] Superconducting spin valve effect in Co/Pb/Co heterostructures with insulating interlayers
    Kamashev, Andrey A.
    Garif'yanov, Nadir N.
    Validov, Aidar A.
    Kataev, Vladislav
    Osin, Alexander S.
    Fominov, Yakov, V
    Garifullin, Ilgiz A.
    BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 2024, 15 : 457 - 464
  • [5] Effect of external magnetic field on magnetic properties of Co-Pt nanotubes and nanowires
    Chen, J. Y.
    Liu, H. R.
    Ahmad, N.
    Li, Y. L.
    Chen, Z. Y.
    Zhou, W. P.
    Han, X. F.
    JOURNAL OF APPLIED PHYSICS, 2011, 109 (07)
  • [6] Magnetic field tunable superconducting transition in Nb/Co/Py/Nb exchange spring multilayers
    Bhatia, Ekta
    Devine-Stoneman, J. M.
    Barber, Zoe H.
    Robinson, J. W. A.
    Senapati, Kartik
    APPLIED PHYSICS LETTERS, 2020, 116 (11)
  • [7] EFFECT OF EXTERNAL MAGNETIC FIELD ON STRUCTURAL AND MAGNETIC PROPERTIES OF ELECTRODEPOSITED Co-Fe NANOWIRES
    Shamaila, S.
    Hassan, M.
    Sharif, R.
    Salman, A.
    SURFACE REVIEW AND LETTERS, 2021, 28 (09)
  • [8] On the superconducting sphere in an external magnetic field
    Matute, EA
    AMERICAN JOURNAL OF PHYSICS, 1999, 67 (09) : 786 - 788
  • [9] Superconducting proximity effect in Pb/Ag nanocomposites
    Bose, Sangita
    Ayyub, Pushan
    PHYSICAL REVIEW B, 2007, 76 (14)
  • [10] Effect of external magnetic field on the Co3O4 reduction kinetics
    Chernavskii, P. A.
    Kazak, V. O.
    Pankina, G. V.
    Perov, N. S.
    KINETICS AND CATALYSIS, 2014, 55 (01) : 117 - 120
12345