activity
19992019
most citedOrdering in Heisenberg Spin Glasses

70 citations · 298 across the 28 of their papers we have counts for

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Showing cond-mat.supr-conShow all

19 papers · 1 filter

cond-mat.supr-con2012★ 1 cited

Zero-bias anomalies on SrLaCuO thin films

L. Fruchter, F. Bouquet, Z. Z. Li

High-impedance contacts made on the surface of SrLaCuO superconducting thin films systematically display a zero-bias anomaly. We consider two-level systems (T…

cond-mat.supr-con2012

Point-Contact spectroscopy on electron-doped SrLaCuO thin films

L. Fruchter, F. Bouquet, Z. Z. Li

We report on the spectra of point-contacts made on SrLaCuO thin films. Besides a clear evidence for the superconducting gap, we discuss the origin of specific…

cond-mat.supr-con2011★ 2 cited

Electric--field effect on electron-doped infinite-layer SrLaCuO thin films

L. Fruchter, F. Bouquet, Z. Z. Li

We have used the electric--field effect to modulate the resistivity of the surface of underdoped SrLaCuO thin films, allowing opposite modifications of th…

cond-mat.supr-con2010★ 26 cited

Anisotropy of the in-plane angular magnetoresistance of electron-doed Sr1-xLaxCuO2 thin films

V. P. Jovanović, L. Fruchter, Z. Z. Li +1

Signatures of antiferromagnetism (AF) in the underdoped Ln2-xCexCuO4 (Ln = Nd, Pr,...) family are observed even for doping levels for which superconductivity exists. We have looked…

cond-mat.supr-con2010★ 8 cited

Penetration depth of electron-doped-infinite-layer SrLaCuO thin films

L. Fruchter, V. Jovanovic, H. Raffy +3

The in-plane penetration depth of SrLaCuO thin films at various doping obtained from oxygen reduction has been measured, using AC susceptibility measureme…

cond-mat.supr-con2009★ 2 cited

Non linear transport properties of an insulating YBCO nano-bridge

L. Fruchter, A. Kazumov, J. Briatico +2

We have investigated the transport properties of an insulating sub-micrometric YBa2Cu3O7-d bridge, patterned on a thin film. As expected for a variable-range-hopping insulator, tra…

cond-mat.supr-con2008★ 7 cited

Magnetoresistance and Hall effect in e-doped superconducting SrLaCuO thin films

V. Jovanovic, Z. Z. Li, F. Bouquet +2

We have epitaxially grown c-axis oriented SrxLa1-xCuO2 thin films by rf sputtering on KTaO3 substrates with x = 0.12. The as-grown deposits are insulating and a series of supercond…

cond-mat.supr-con2008★ 2 cited

Characterizing the insulator adjacent to the superconductor in BiSrLaCuO ()

L. Fruchter, Z. Z. Li, H. Raffy

The time-averaged and low--frequency noise transport properties were investigated in the vicinity of the superconductor--insulator transition for a BiSrLaCuO$_{6+…

cond-mat.supr-con2007★ 4 cited

Resistance noise in Bi_2Sr_2CaCu_2O

L. Fruchter, H. Raffy, Z. Z. Li

The resistance noise in a Bi_2Sr_2CaCu_2O thin film is found to increase strongly in the underdoped regime. While the increase of the raw resistance noise with decreasing t…

cond-mat.supr-con2006★ 9 cited

Influence of Disorder on the Hall Effect in BiSrCuO

L. Fruchter, H. Raffy, F. Bouquet +1

The in-plane resistivity and Hall coefficient have been measured for the single-layer compound BiSrCuO for the whole range of doping states. The deviation of the Ha…

cond-mat.supr-con2005★ 9 cited

Upper critical field from normal state fluctuations in BiSrCuO

F. Bouquet, L. Fruchter, I. Sfar +2

The in-plane magnetoresistance of an epitaxial BiSrCuO thin film was systematically investigated as a function of doping, above . The orbital magnetoconductanc…

cond-mat.supr-con2005★ 6 cited

Current dependent fluctuations in a BiSrCuO thin film

I. Sfar, Z. Z. Li, F. Bouquet +2

The current dependence of the excess conductivity is measured up to for a BiSrCuO thin film, as a function of doping. It is found to be anomalously s…

cond-mat.supr-con2005★ 7 cited

Thermodynamics of the vortex liquid in heavy ion-irradiated superconductors

Cornelis J. van der Beek, Marcin Konczykowski, Luc Fruchter +4

It is shown that the large effect of heavy ion-irradiation on the thermodynamical properties of the anisotropic superconductor YBaCuO extends well into the supe…

cond-mat.supr-con2003★ 18 cited

Non linear excess conductivity of BiSrCaCuO (n = 1,2), thin films

L. Fruchter, I. Sfar, F. Bouquet +2

The suppression of excess conductivity with electric field is studied for BiSrCaCuO ( = 1, 2) thin films. A pulse-probe technique is used, which a…

cond-mat.supr-con2003

Continuous melting of a driven two-dimensional flux lattice with strong pins

L. Fruchter

The phase diagram of a driven two-dimensional vortex lattice in the presence of dense quasi-point pins is investigated. The transition from the crystal to the liquid is found conti…

cond-mat.supr-con2001★ 1 cited

Transition to plastic motion as a critical phenomenon and anomalous interface layer of a 2D driven vortex lattice

L. Fruchter

The dynamic transition between the ordered flow and the plastic flow is studied for a two-dimensional driven vortex lattice, in the presence of sharp and dense pinning centers, fro…

cond-mat.supr-con2001

Metastable states of a driven flux lattice in a superconductor with strong pins

L. Fruchter

The flux lattice driven by a uniform driving force in a superconductor with hot, strong, sharp and randomly distributed pinning centers, with applied magnetic field half the matchi…

cond-mat.supr-con2000★ 21 cited

Fluid and plastic flow dynamics of the critical state for a strongly pinned 2D superconductor

D. Monier, L. Fruchter

We present simulations of the dynamic critical state for a 2D superconductor with strong pinning centers, corresponding to a matching field twice the applied magnetic field. The sh…

cond-mat.supr-con1999★ 8 cited

Evidence for an angular dependent contribution from columnar defects to the equilibrium magnetization of YBa_2Cu_3O_{7-d}

B. Hayani, S. T. Johnson, L. Fruchter +1

We have measured an angle-dependent contribution to the equilibrium magnetization of a YBa_2Cu_3O_{7-d} single crystal with columnar defects created by 5.8GeV Pb ions. This contrib…