[en] The influence of a conducting layer on the magnetic flux penetration in a superconducting Nb film is studied by magneto-optical imaging. The metallic layer partially covering the superconductor provides an additional velocity-dependent damping mechanism for the flux motion that helps protecting the superconducting state when thermomagnetic instabilities develop. If the flux advances with a velocity slower than w = 2/µ0σt, where σ is the cap layer conductivity and t is its thickness, the flux penetration remains unaffected, whereas for incoming flux moving faster than w, the metallic layer becomes an active screening shield. When the metallic layer is replaced by a perfect conductor, it is expected that the flux braking effect will occur for all flux velocities. We demonstrate this effect by investigating Nb samples with a thickness step. Some of the observed features, namely the deflection and the branching of the flux trajectories at the border of the thick centre, as well as the favoured flux penetration at the indentation, are reproduced by time-dependent Ginzburg-Landau simulations.
Disciplines :
Physique
Auteur, co-auteur :
Brisbois, Jérémy ; Université de Liège > Département de physique > Physique expérimentale des matériaux nanostructurés
J. Albrecht, A. T. Matveev, M. Djupmyr, G. Schütz, B. Stuhlhofer, and H. U. Habermeier, Appl. Phys. Lett. 87, 182501 (2005). APPLAB 0003-6951 10.1063/1.2123395
J. Brisbois, B. Vanderheyden, F. Colauto, M. Motta, W. A. Ortiz, J. Fritzsche, N. D. Nguyen, B. Hackens, O.-A. Adami, and A. V. Silhanek, New J. Phys. 16, 103003 (2014). NJOPFM 1367-2630 10.1088/1367-2630/16/10/103003
P. Mikheenko, T. H. Johansen, S. Chaudhuri, I. J. Maasilta, and Y. M. Galperin, Phys. Rev. B 91, 060507 (2015). PRBMDO 1098-0121 10.1103/PhysRevB.91.060507
P. Mikheenko, J. I. Vestgården, S. Chaudhuri, I. J. Maasilta, Y. M. Galperin, and T. H. Johansen, AIP Adv. 6, 035304 (2016). 2158-3226 10.1063/1.4943549
R. B. Harrison, J. P. Pendrys, and L. S. Wright, J. Low Temp. Phys. 18, 113 (1975). JLTPAC 0022-2291 10.1007/BF00116973
M. Danckwerts, A. R. Goñi, C. Thomsen, K. Eberl, and A. G. Rojo, Phys. Rev. Lett. 84, 3702 (2000). PRLTAO 0031-9007 10.1103/PhysRevLett.84.3702
J. Baker and A. G. Rojo, Phys. Rev. B 64, 014513 (2001). PRBMDO 0163-1829 10.1103/PhysRevB.64.014513
F. Colauto, E. Choi, J. Y. Lee, S. I. Lee, E. J. Patiño, M. G. Blamire, T. H. Johansen, and W. A. Ortiz, Appl. Phys. Lett. 96, 092512 (2010). APPLAB 0003-6951 10.1063/1.3350681
J. R. Reitz, J. Appl. Phys. 41, 2067 (1970). JAPIAU 0021-8979 10.1063/1.1659166
W. M. Saslow, Am. J. Phys. 60, 693 (1991). AJPIAS 0002-9505 10.1119/1.17101
W. M. Saslow, Am. J. Phys. 59, 16 (1991). AJPIAS 0002-9505 10.1119/1.16700
T. D. Rossing and J. R. Hull, Phys. Teach. 29, 552 (1991). PHTEAH 0031-921X 10.1119/1.2343425
G. Grimaldi, A. Leo, A. Nigro, S. Pace, and R. P. Huebener, Phys. Rev. B 80, 144521 (2009). PRBMDO 1098-0121 10.1103/PhysRevB.80.144521
M. R. Wertheimer and J. le G. Gilchrist, J. Phys. Chem. Solids 28, 2509 (1967). JPCSAW 0022-3697 10.1016/0022-3697(67)90038-8
A. Andronov, I. Gordion, V. Kurin, I. Nefedov, and I. Shereshevsky, Physica C 213, 193 (1993). PHYCE6 0921-4534 10.1016/0921-4534(93)90777-N
A. G. Sivakov, A. M. Glukhov, A. N. Omelyanchouk, Y. Koval, P. Müller, and A. V. Ustinov, Phys. Rev. Lett. 91, 267001 (2003). PRLTAO 0031-9007 10.1103/PhysRevLett.91.267001
O.-A. Adami, Z. L. Jelić, C. Xue, M. Abdel-Hafiez, B. Hackens, V. V. Moshchalkov, M. V. Milosević, J. Van de Vondel, and A. V. Silhanek, Phys. Rev. B 92, 134506 (2015). PRBMDO 1098-0121 10.1103/PhysRevB.92.134506
I. Giaever, Phys. Rev. Lett. 15, 825 (1965). PRLTAO 0031-9007 10.1103/PhysRevLett.15.825
P. E. Goa, H. Hauglin, A. A. F. Olsen, D. Shantsev, and T. H. Johansen, Appl. Phys. Lett. 82, 79 (2003). APPLAB 0003-6951 10.1063/1.1533120
Th. Schuster, M. R. Koblischka, H. Kuhn, H. Kronmüller, G. Friedl, B. Roas, and L. Schultz, Appl. Phys. Lett. 62, 768 (1993). APPLAB 0003-6951 10.1063/1.108573
B. L. T. Plourde, D. J. Van Harlingen, N. Saha, R. Besseling, M. B. S. Hesselberth, and P. H. Kes, Phys. Rev. B 66, 054529 (2002). PRBMDO 0163-1829 10.1103/PhysRevB.66.054529
F. Pardo, F. de la Cruz, P. L. Gammel, E. Bucher, C. Ogelsby, and D. J. Bishop, Phys. Rev. Lett. 79, 1369 (1997). PRLTAO 0031-9007 10.1103/PhysRevLett.79.1369
J. Barba-Ortega, J. D. Gonzalez, and E. Sardella, J. Low Temp. Phys. 174, 96 (2014). JLTPAC 0022-2291 10.1007/s10909-013-0921-7
J. Brisbois, O.-A. Adami, J. I. Avila, M. Motta, W. A. Ortiz, N. D. Nguyen, P. Vanderbemden, B. Vanderheyden, R. B. G. Kramer, and A. V. Silhanek, Phys. Rev. B 93, 054521 (2016). 2469-9950 10.1103/PhysRevB.93.054521
M. R. Koblischka and R. J. Wijngaarden, Supercond. Sci. Technol. 8, 199 (1995). SUSTEF 0953-2048 10.1088/0953-2048/8/4/002
Ch. Jooss, J. Albrecht, H. Kuhn, S. Leonhardt, and H. Kronmüller, Rep. Prog. Phys. 65, 651 (2002). RPPHAG 0034-4885 10.1088/0034-4885/65/5/202
R. A. Matula, J. Phys. Chem. Ref. Data 8, 1147 (1979). JPCRBU 0047-2689 10.1063/1.555614
R. G. Mints and A. L. Rahkmanov, Rev. Mod. Phys. 53, 551 (1981). RMPHAT 0034-6861 10.1103/RevModPhys.53.551
See Fig. 6(b) in U. Bolz, B. Biehler, D. Schmidt, B.-U. Runge, and P. Leiderer, Europhys. Lett. 64, 517 (2003). EULEEJ 0295-5075 10.1209/epl/i2003-00261-y
J. I. Vestgarden, D. V. Shantsev, Y. M. Galperin, and T. H. Johansen, Supercond. Sci. Technol. 26, 055012 (2013). SUSTEF 0953-2048 10.1088/0953-2048/26/5/055012
J. R. Clem and K. K. Berggren, Phys. Rev. B 84, 174510 (2011). PRBMDO 1098-0121 10.1103/PhysRevB.84.174510
O.-A. Adami, D. Cerbu, D. Cabosart, M. Motta, J. Cuppens, W. A. Ortiz, V. V. Moshchalkov, B. Hackens, R. Delamare, J. Van de Vondel, and A. V. Silhanek, Appl. Phys. Lett. 102, 052603 (2013). APPLAB 0003-6951 10.1063/1.4790625
D. Cerbu, V. N. Gladilin, J. Cuppens, J. Fritzsche, J. Tempere, J. T. Devreese, V. V. Moshchalkov, A. V. Silhanek, and J. Van de Vondel, New J. Phys. 15, 063022 (2013). NJOPFM 1367-2630 10.1088/1367-2630/15/6/063022
G. Via, C. Navau, and A. Sanchez, J. Appl. Phys. 113, 093905 (2013). JAPIAU 0021-8979 10.1063/1.4794315
J. I. Vestgården, D. V. Shantsev, Y. M. Galperin, and T. H. Johansen, Phys. Rev. B 76, 174509 (2007). PRBMDO 1098-0121 10.1103/PhysRevB.76.174509
A. Gurevich and M. Friesen, Phys. Rev. B 62, 4004 (2000). PRBMDO 0163-1829 10.1103/PhysRevB.62.4004
M. Tinkham, Introduction to Superconductivity, 2nd ed. (Dover, New York, 2004), pp. 152 and 153.
A. I. Gubin, K. S. Il'in, S. A. Vitusevich, M. Siegel, and N. Klein, Phys. Rev. B 72, 064503 (2005). PRBMDO 1098-0121 10.1103/PhysRevB.72.064503
A. M. Chang, H. D. Hallen, L. Harriott, H. F. Hess, H. L. Kao, J. Kwo, R. E. Miller, R. Wolfe, J. van der Ziel, and T. Y. Chang, Appl. Phys. Lett. 61, 1974 (1992). APPLAB 0003-6951 10.1063/1.108334
F. Hengstberger, M. Eisterer, and H. W. Weber, Appl. Phys. Lett. 96, 022508 (2010). APPLAB 0003-6951 10.1063/1.3290254
J. I. Vestgården, Y. M. Galperin, and T. H. Johansen, arXiv:1309.6463.
F. Colauto, E. J. Patiño, M. Aprilli, and W. A. Ortiz, J. Phys.: Conf. Ser. 150, 052038 (2009). 1742-6588 10.1088/1742-6596/150/5/052038
J. Barba-Ortega, E. Sardella, and J. A. Aguiar, Phys. Lett. A 379, 732 (2015). PYLAAG 0375-9601 10.1016/j.physleta.2014.12.030
S. J. Chapman, Q. Du, and M. D. Gunzburger, Z. Angew. Math. Phys. 47, 410 (1996). ZAMPA8 0044-2275 10.1007/BF00916647
V. N. Gladilin, J. Ge, J. Gutierrez, M. Timmermans, J. Van de Vondel, J. Tempere, J. T. Devreese, and V. V. Moshchalkov, New J. Phys. 17, 063032 (2015). NJOPFM 1367-2630 10.1088/1367-2630/17/6/063032
R. Kato, Y. Enomoto, and S. Maekawa, Phys. Rev. B 44, 6916 (1991). PRBMDO 0163-1829 10.1103/PhysRevB.44.6916
A. V. Silhanek, V. N. Gladilin, J. Van de Vondel, B. Raes, G. W. Ataklti, W. Gillijns, J. Tempere, J. T. Devreese, and V. V. Moshchalkov, Supercond. Sci. Technol. 24, 024007 (2011). SUSTEF 0953-2048 10.1088/0953-2048/24/2/024007
V. N. Gladilin, J. Tempere, J. T. Devreese, and V. V. Moshchalkov, Solid State Commun. 152, 1781 (2012). SSCOA4 0038-1098 10.1016/j.ssc.2012.06.025
V. N. Gladilin, J. Tempere, J. T. Devreese, W. Gillijns, and V. V. Moshchalkov, Phys. Rev. B 80, 054503 (2009). PRBMDO 1098-0121 10.1103/PhysRevB.80.054503
