Publications (32)
Longitudinal magnetoresistance in Co-doped BaFe2As2 and LiFeAs single crystals: Interplay between spin fluctuations and charge transport in iron-pnictides
F. Rullier-Albenque, D. Colson, A. Forget
The longitudinal in-plane magnetoresistance (LMR) has been measured in different Ba(Fe_(1-x)Co_x)2As2 single crystals and in LiFeAs. For all these compounds, we find a negative LMR…
Opening of the superconducting gap in the hole pockets of Ba(Fe(1-x)Co(x))2As2 as seen via Angle-Resolved PhotoElectron Spectroscopy
B. Mansart, E. Papalazarou, M. Fuglsang Jensen +8
We present an Angle-Resolved PhotoElectron Spectroscopy study of the changes in the electronic structure of electron doped Ba(Fe(1-x)Co(x))2As2 across the superconducting phase tra…
Large temperature dependence of the number of carriers in Co-doped BaFe2As2
V. Brouet, Ping-Hui Lin, Y. Texier +10
Using angle-resolved photoemission spectroscopy, we study the evolution of the number of carriers in Ba(Fe(1-x)Cox)2As2 as a function of Co content and temperature. We show that th…
Temperature-induced Change in the Fermi Surface Topology in the Spin Density Wave Phase of Sr(FeCo)As
Y. -X. Yang, Y. Gallais, F. Rullier-Albenque +6
We report electronic Raman scattering measurements of Sr(FeCo)As single crystals in their magnetic - Spin Density Wave (SDW) phase. The spectra display multiple…
Reply to Comment on "High-field studies of superconducting fluctuations in high-Tc cuprates: Evidence for a small gap distinct from the large pseudogap" by M.V. Ramallo et al
F. Rullier-Albenque, H. Alloul, G. Rikken
The experimental investigations done in our paper Phys.Rev.B84,014522(2011) allowed us to establish that the superconducting fluctuations (SCF) always die out sharply with increasi…
Multiorbital effects on the transport and the superconducting fluctuations in LiFeAs
F. Rullier-Albenque, D. Colson, A. Forget +1
The resistivity, Hall effect and transverse magnetoresistance (MR) have been measured in low residual resistivity single crystals of LiFeAs. A comparison with angle resolved photoe…
Respective influences of pair breaking and phase fluctuations in disordered high Tc superconductors
F. Rullier-Albenque, H. Alloul, R. Tourbot
Electron irradiation has been used to introduce point defects in a controlled way in the CuO2 planes of underdoped and optimally doped YBCO. This technique allows us to perform ver…
Ultrafast transient response and electron-phonon coupling in the iron-pnictide superconductor Ba(Fe(1-x)Co(x))2As2
B. Mansart, D. Boschetto, A. Savoia +7
The transient response of Ba(Fe(1-x)Co(x))2As2, x=0.08 was studied by pump-probe optical reflectivity. After ultrafast photoexcitation, hot electrons were found to relax with two d…
Different effects of Ni and Co substitution on the transport properties of BaFe2As2
A. Olariu, F. Rullier-Albenque, D. Colson +1
We report resistivity and Hall effect results on Ba(Fe1-xNix)2As2 and compare them with those in Ba(Fe1-xCox)2As2. The Hall number RH is negative for all x values from 0.01 to 0.14…
Universal Tc depression by irradiation defects in underdoped and overdoped cuprates
F. Rullier-Albenque, P. A. Vieillefond, H. Alloul +3
We report on a study of the influence of defects introduced in the CuO planes of cuprates in a wide range of hole dopings n. T and electrical resistivity measur…
Hole and Electron Contributions to the Transport Properties of Ba(Fe_(1-x)Ru_x)_2As_2 Single Crystals
F. Rullier-Albenque, D. Colson, A. Forget +2
We report a systematic study of structural and transport properties in single crystals of Ba(Fe_(1-x)Ru_x)_2As_2 for x ranging from 0 to 0.5. The isovalent substitution of Fe by Ru…
Incommensurate spin density wave in Co-doped BaFe2As2
P. Bonville, F. Rullier-Albenque, D. Colson +1
57Fe Mossbauer spectroscopy measurements are presented in the underdoped Ba(Fe{1-x}Cox)2As2 series for x=0.014 (T_c < 1.4K) and x=0.03 and 0.045 (T_c ~ 2 and 12K respectively). The…
Effect of controlled disorder on quasiparticle thermal transport in BiSrCaCuO
S. Nakamae, K. Behnia, L. Balicas +3
Low temperature thermal conductivity, , of optimally-doped Bi2212 was studied before and after the introduction of point defects by electron irradiation. The amplitude of the l…
Nernst effect and disorder in the normal state of high-T_{c} cuprates
F. Rullier-Albenque, R. Tourbot, H. Alloul +3
We have studied the influence of disorder induced by electron irradiation on the Nernst effect in optimally and underdoped YBa2Cu3O(7-d) single crystals. The fluctuation regime abo…
Significant reduction of electronic correlations upon isovalent Ru substitution of BaFe2As2
V. Brouet, F. Rullier-Albenque, M. Marsi +10
We present a detailed investigation of Ba(Fe0.65Ru0.35)2As2 by transport measurements and Angle Resolved photoemission spectroscopy. We observe that Fe and Ru orbitals hybridize to…
Disorder and transport in cuprates: weak localization and magnetic contributions
F. Rullier-Albenque, H. Alloul, R. Tourbot
We report resistivity measurements in underdoped YBaCuOand overdoped TlBaCuO single crystals in which the concentration of defects in the C…
High Field determination of superconducting fluctuations in high-Tc cuprates
F. Rullier-Albenque, H. Alloul, D. Colson +1
Large pulsed magnetic fields up to 60 Tesla are used to suppress the contribution of superconducting fluctuations (SCF) to the ab-plane conductivity above Tc in a series of YBa2Cu3…
Irradiation-induced confinement in a quasi-one-dimensional metal
A. Enayati-Rad, A. Narduzzo, F. Rullier-Albenque +2
The anisotropic resistivity of PrBaCuO has been measured as a function of electron irradiation fluence. Localization effects are observed for extremely small amounts of…
Superconducting Fluctuations, Pseudogap and Phase Diagram in Cuprates
H. Alloul, F. Rullier-Albenque, B. Vignolle +2
We report transport measurements using pulsed magnetic fields to suppress the superconducting fluctuations (SCF) conductivity in a series of YBa_2Cu_3O_(6+x) samples. These experim…
Atomic coexistence of superconductivity and incommensurate magnetic order in the Ba(Fe1-xCox)2As2 pnictide
Y. Laplace, J. Bobroff, F. Rullier-Albenque +2
75As NMR and susceptiblity were measured in a Ba(Fe1-xCox)2As2 single crystal for x=6%. Nuclear Magnetic Resonance (NMR) spectra and relaxation rates allow to show that all Fe site…
Superconducting fluctuations and pseudogap in high-Tc cuprates
F. Rullier-Albenque, H. Alloul
Large pulsed magnetic fields up to 60 Tesla are used to suppress the contribution of superconducting fluctuations (SCF) to the ab-plane conductivity above Tc in a series of YBa2Cu3…
Strong pinning and vortex energy distributions in single crystalline Ba(Fe1-xCox)2As2
S. Demirdis, C. J. van der Beek, Y. Fasano +4
The interrelation between heterogeneity and flux pinning is studied in Ba(Fe1-xCox)2As2 single crystals with widely varying Co-content x. Magnetic Bitter decoration of the supercon…
Total suppression of superconductivity by high magnetic fields in YBa2 Cu3O6.6
F. Rullier-Albenque, H. Alloul, Cyril Proust +3
We have studied in fields up to 60T the variation of the transverse magnetoresistance (MR) of underdoped YBCO6.6 crystals either pure or with Tc reduced down to 3.5K by electron ir…
Disorder, Metal-Insulator crossover and Phase diagram in high-Tc cuprates
F. Rullier-Albenque, H. Alloul, F. Balakirev +1
We have studied the influence of disorder induced by electron irradiation on the normal state resistivities of optimally and underdoped YBa2CuOx single crystals, using puls…
Absence of large nanoscale electronic inhomogeneities in the Ba(Fe1-xCox)2As2 pnictide
Y. Laplace, J. Bobroff, F. Rullier-Albenque +2
75As NMR and susceptiblity were measured in a Ba(Fe1-xCox)2As2 single crystal for x=6% for various field H values and orientations. The sharpness of the superconducting and magneti…
Nesting between hole and electron pockets in Ba(Fe1-xCox)2As2 (x=0-0.3) observed with angle-resolved photoemission
V. Brouet, M. Marsi, B. Mansart +7
We present a comprehensive angle-resolved photoemission study of the three-dimensional electronic structure of Ba(Fe1-xCox)2As2. The wide range of dopings covered by this study, x=…
High Field Studies of Superconducting Fluctuations in High-T_c Cuprates: Evidence for a Small Gap distinct from the Large Pseudogap
F. Rullier-Albenque, H. Alloul, G. Rikken
We have used pulsed magnetic fields up to 60Tesla to suppress the contribution of superconducting fluctuations(SCF)to the conductivity above Tc in a series of YBa2Cu3O6+x from the…
Vortex pinning : a probe for nanoscale disorder in iron-based superconductors
Cornelis Jacominus Van Der Beek, Sultan Demirdis, Marcin Konczykowski +5
The pinning of quantized flux lines, or vortices, in the mixed state is used to quantify the effect of impurities in iron-based superconductors (IBS). Disorder at two length scales…
Synthesis of sodium cobaltate NaCoO single crystals with controlled Na ordering
I. F. Gilmutdinov, I. R. Mukhamedshin, F. Rullier-Albenque +1
In this study, we synthesized single crystals of NaCoO with using the optical floating zone technique. A thorough electrochemical treatment of the samples pe…
Electron irradiation of Co, Ni, and P-doped BaFe2As2 - type iron-based superconductors
Cornelis Jacominus Van Der Beek, Sultan Demirdis, Dorothée Colson +7
High energy electron irradiation is used to controllably introduce atomic-scale point defects into single crystalline Ba(Fe_1-xCo_x)_2As_2, Ba(Fe_1-xNi_x)_2As_2, and BaFe_2(As_1-xP…
Incommensurate Spin Density Wave versus local magnetic inhomogeneities in Ba(Fe1-xNix)2As2: a 57Fe Mossbauer spectroscopy study
A. Olariu, P. Bonville, F. Rullier-Albenque +2
We report 57Fe Mossbauer spectral results in pure and doped Ba(Fe1-xNix)2As2 with x=0.01 and 0.03. We show that all these materials present a first-order magnetic transition toward…
Hall effect and resistivity study of the magnetic transition, carrier content and Fermi liquid behavior in Ba(Fe(1-x) Cox)2As2
F. Rullier-Albenque, D. Colson, A. Forget +1
The negative Hall constant R_H measured all over the phase diagram of Ba(Fe(1-x)Cox)2As2 allows us to show that electron carriers always dominate the transport properties. The evol…