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http://hdl.handle.net/1942/2395
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DC Field | Value | Language |
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dc.contributor.author | Wambecq, T | - |
dc.contributor.author | Vanacken, J | - |
dc.contributor.author | Stroobants, S | - |
dc.contributor.author | Weckhuysen, L | - |
dc.contributor.author | Mashkautsan, V | - |
dc.contributor.author | WAGNER, Patrick | - |
dc.contributor.author | Moshchalkov, VV | - |
dc.date.accessioned | 2007-11-13T22:38:20Z | - |
dc.date.available | 2007-11-13T22:38:20Z | - |
dc.date.issued | 2004 | - |
dc.identifier.citation | PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 404(1-4). p. 405-409 | - |
dc.identifier.issn | 0921-4534 | - |
dc.identifier.uri | http://hdl.handle.net/1942/2395 | - |
dc.description.abstract | We have investigated the magnetotransport of La2-xSrxCuO4 (0.045 less than or equal to x less than or equal to 0.25) epitaxial thin films in pulsed fields up to mu(0)H = 50 T. Above a certain temperature T*, the temperature dependence of the resistivity rho(T) is linear and between T* and the superconducting critical temperature T-c, rho(T) is superlinear. This observation is universal for all underdoped films. The high field data rho(T, H-0) from underdoped and slightly overdoped samples reveal a metal-to-insulator like transition (MIT) at low temperatures. We have determined the detailed dependence of the minimum in the rho(T) curves as a function of the Sr-content x. The MIT can be analyzed by calculating the k(F)l product from the resistivity data; here k(F) is the Fermi wave vector and l is the mean free path. We can describe the insulating behavior at low temperatures of samples with k(F)l < 1 by a variable range hopping conductivity. For samples where k(F)l > 1 the divergence of the resistivity follows a power (T-x(alpha > 0)) or a logarithmic In(l/T)) law, depending on the Sr-content. This p(T) divergence is probably associated with the formation of the pseudogap and the pinning of the fragmented charge stripes at low temperatures. (C) 2004 Elsevier B.V. All rights reserved. | - |
dc.language.iso | en | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.subject.other | high temperature superconductivity; magnetoresistance; metal-insulator transition; psuedogap | - |
dc.title | Transport properties of La2-xSrxCuO4 epitaxial thin films in high magnetic fields | - |
dc.type | Journal Contribution | - |
dc.identifier.epage | 409 | - |
dc.identifier.issue | 1-4 | - |
dc.identifier.spage | 405 | - |
dc.identifier.volume | 404 | - |
local.format.pages | 5 | - |
local.bibliographicCitation.jcat | A1 | - |
dc.description.notes | Katholieke Univ Leuven, Nanoscale Superconduct & Magnetism, Pulsed Fields Grp, Lab Vaste Stoffys & Magnetisme, B-3001 Leuven, Belgium. Lab Natl Champs Magnet Pulses, F-31432 Toulouse, France. Limburgs Univ Ctr, Inst Mat Onderzoek, B-3590 Diepenbeek, Belgium.Wambecq, T, Katholieke Univ Leuven, Nanoscale Superconduct & Magnetism, Pulsed Fields Grp, Lab Vaste Stoffys & Magnetisme, Celestijnenlaan 200 D, B-3001 Leuven, Belgium.tom.wambecq@fys.kuleuven.ac.be | - |
local.type.refereed | Refereed | - |
local.type.specified | Article | - |
dc.bibliographicCitation.oldjcat | A1 | - |
dc.identifier.doi | 10.1016/j.physc.2004.01.019 | - |
dc.identifier.isi | 000221211500075 | - |
item.fulltext | No Fulltext | - |
item.validation | ecoom 2005 | - |
item.fullcitation | Wambecq, T; Vanacken, J; Stroobants, S; Weckhuysen, L; Mashkautsan, V; WAGNER, Patrick & Moshchalkov, VV (2004) Transport properties of La2-xSrxCuO4 epitaxial thin films in high magnetic fields. In: PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS, 404(1-4). p. 405-409. | - |
item.contributor | Wambecq, T | - |
item.contributor | Vanacken, J | - |
item.contributor | Stroobants, S | - |
item.contributor | Weckhuysen, L | - |
item.contributor | Mashkautsan, V | - |
item.contributor | WAGNER, Patrick | - |
item.contributor | Moshchalkov, VV | - |
item.accessRights | Closed Access | - |
crisitem.journal.issn | 0921-4534 | - |
crisitem.journal.eissn | 1873-2143 | - |
Appears in Collections: | Research publications |
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