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Neerinck, D.; Temst, K.; Baert, M.; Osquiguil, E.; Van Haesendonck, C.; Bruynseraede, Y.; Gilabert, A.; Schuller, I.K. |
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Title |
Thermally induced transition in the vortex lattice of Ge/Pb multilayers |
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Journal Article |
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Year |
1991 |
Publication |
Physica C: Superconductivity and its applications |
Abbreviated Journal |
Phys C Supercond Appl |
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185-189 |
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PART 3 |
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2061-2062 |
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Keywords |
Germanium And Alloys; Lead And Alloys; Superconducting Films; Thermal Effects; Critical Currents; Multilayers; Metallic Films |
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Abstract |
We report on a novel magnetic field dependence of the critical current density of M.B.E. grown Ge/Pb insulator/superconductor multilayers. When the magnetic field is applied perpendicular to the layers, the critical current density Jc drops to a minimum, followed by a broad maximum before finally decaying monotonously to zezero with increasing magnetic field. The dependence of this effect on pinning strength, temperature, and layer thickness suggests either a thermally driven coupling/decoupling transition, or melting of the vortex lattice. |
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Physics Department, University of California, San Diego, CA 92093-0319, United States |
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09214534 (ISSN) |
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Export Date: 17 April 2009; Source: Scopus; CODEN: PHYCE; Language of Original Document: English; Correspondence Address: Neerinck, D.; Laboratorium voor Vaste Stof-Fysika en Magnetisme; K.U. Leuven B-3001 Leuven, Belgium |
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BT @ osquigui @ |
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412 |
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Neerinck, D.; Temst, K.; Baert, M.; Osquiguil, E.; Van Haesendonck, C.; Bruynseraede, Y.; Gilabert, A.; Schuller, I.K. |
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Title |
Softening of the flux line lattice in Ge/Pb multilayers |
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Journal Article |
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1992 |
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Superconductor Science and Technology |
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5 |
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1S |
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The authors measured the critical current density Jc of artificially grown Ge/Pb multilayers as a function of the magnetic field H perpendicular to applied perpendicular to the layers. In these layered structures Jc(Hperpendicular to) rapidly drops to a pronounced minimum at a field H*perpendicular to, then increases through a broad maximum and finally decays to zero at H c2 perpendicular to. The systematic evolution of this minimum as a function of temperature, layer thickness and pinning strength allows us to conclude that this peculiar behavior is due to a thermally driven softening of the flux line lattice which can be related either to a magnetic decoupling or a melting of the vortex structure. |
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Lab. voor Vaste Stof-Fysika en Magn., Katholieke Univ., Leuven, Belgium |
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09532048 (ISSN) |
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Export Date: 17 April 2009; Source: Scopus; Art. No.: 029; doi: 10.1088/0953-2048/5/1S/029; Language of Original Document: English; Correspondence Address: Neerinck, D.; Lab. voor Vaste Stof-Fysika en Magn.; Katholieke Univ. Leuven, Belgium |
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BT @ osquigui @ |
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408 |
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Neerinck, D.; Temst, K.; Baert, M.; Osquiguil, E.; Van Haesendonck, C.; Bruynseraede, Y.; Gilabert, A.; Schuller, I.K. |
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Title |
Transition in the flux lattice of artificially layered superconductors |
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Journal Article |
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1991 |
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Physical Review Letters |
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67 |
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18 |
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2577-2580 |
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We report a novel magnetic-field dependence of the critical-current density Jc in artificially grown Ge/Pb superlattices. In these layered structures Jc exhibits an unexpected minimum as a function of perpendicular applied field, unlike any ever observed in other superconductor systems. The systematic evolution of this minimum as a function of layer thicknesses, temperature and pinning strength is related to either flux-lattice decoupling or melting. |
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Department of Physics, University of California, San Diego, La Jolla, CA 92093-0319 |
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00319007 (ISSN) |
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Cited By (since 1996): 7; Export Date: 17 April 2009; Source: Scopus; doi: 10.1103/PhysRevLett.67.2577; Language of Original Document: English; Correspondence Address: Neerinck, D.; Laboratorium voor Vaste Stof-Fysika en Magnetisme; Katholieke Universiteit Leuven B-3001 Leuven, Belgium |
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BT @ osquigui @ |
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411 |
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