Pure second harmonic current-phase relation in spin-filter Josephson junctions

被引：0
|
作者：
Avradeep Pal
Z.H. Barber
J.W.A. Robinson
M.G. Blamire
机构：
[1] University of Cambridge,Department of Materials Science and Metallurgy
来源：
Nature Communications | / 5卷
关键词：
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Higher harmonics in current-phase relations of Josephson Junctions are predicted to be observed when the first harmonic is suppressed. Conventional theoretical models predict higher harmonics to be extremely sensitive to changes in barrier thickness, temperature, and so on. Here we report experiments with Josephson junctions incorporating a spin-dependent tunnelling barrier, revealing a current-phase relation for highly spin polarized barriers that is purely second harmonic in nature and is insensitive to changes in barrier thickness. This observation implies that the standard theory of Cooper pair transport through tunnelling barriers is not applicable for spin-dependent tunnelling barriers.
引用
收藏
相关论文
共 50 条
  • [11] Josephson junctions with tunable current-phase relation
    Lipman, A.
    Mints, R. G.
    Kleiner, R.
    Koelle, D.
    Goldobin, E.
    PHYSICAL REVIEW B, 2014, 90 (18):
  • [12] Nonsinusoidal current-phase relation in SFS Josephson junctions
    Golubov, AA
    Kupriyanov, MY
    Fominov, YV
    JETP LETTERS, 2002, 75 (11) : 588 - 592
  • [13] Nonsinusoidal current-phase relation in SFS Josephson junctions
    A. A. Golubov
    M. Yu. Kupriyanov
    Ya. V. Fominov
    Journal of Experimental and Theoretical Physics Letters, 2002, 76 (4): : 231 - 231
  • [14] Nonsinusoidal current-phase relation in SFS Josephson junctions
    A. A. Golubov
    M. Yu. Kupriyanov
    Ya. V. Fominov
    Journal of Experimental and Theoretical Physics Letters, 2002, 75 : 588 - 592
  • [15] Current-Phase Relation of Ballistic Graphene Josephson Junctions
    Nanda, G.
    Aguilera-Servin, J. L.
    Rakyta, P.
    Kormanyos, A.
    Kleiner, R.
    Koelle, D.
    Watanabe, K.
    Taniguchi, T.
    Vandersypen, L. M. K.
    Goswami, S.
    NANO LETTERS, 2017, 17 (06) : 3396 - 3401
  • [16] Effects of anharmonicity of current-phase relation in Josephson junctions
    Askerzade, I. N.
    LOW TEMPERATURE PHYSICS, 2015, 41 (04) : 241 - 259
  • [17] Effects of anharmonicity of current-phase relation in Josephson junctions
    Askerzade, I.N.
    Fizika Nizkikh Temperatur, 2015, 41 (04): : 315 - 337
  • [18] Mesoscopic Josephson junctions with switchable current-phase relation
    Strambini, E.
    Bergeret, F. S.
    Giazotto, F.
    EPL, 2015, 112 (01)
  • [19] Observation of nonsinusoidal current-phase relation in graphene Josephson junctions
    English, C. D.
    Hamilton, D. R.
    Chialvo, C.
    Moraru, I. C.
    Mason, N.
    Van Harlingen, D. J.
    PHYSICAL REVIEW B, 2016, 94 (11)
  • [20] Dynamics of underdamped Josephson junctions with nonsinusoidal current-phase relation
    Kornev, V. K.
    Karminskaya, T. Y.
    Kislinskii, Y. V.
    Komissinki, P. V.
    Constantinian, K. Y.
    Ovsyannikov, G. A.
    7TH EUROPEAN CONFERENCE ON APPLIED SUPERCONDUCTIVITY (EUCAS'05), 2006, 43 : 1105 - 1109
12345