Transport and magnetic properties in YBaCo2O5.45: Focus on the high-temperature transition (2007)
Pautrat, A., Boullay, P., Hebert, S., Caignaert, V.
The electronic transport properties and the magnetic susceptibility were measured in detail in $YBaCo_2O_{5.45}$. Close to the so-called metal-insulator transition, strong effects of resistance...
Brouet, V., Nicolaou, A., Zacchigna, M., Tejeda, A., Patthey, L., Hebert, S., ...
We present the first angle-resolved photoemission (ARPES) measurement of Fermi Surface in the "misfit" cobaltate [Bi2Ba2O4].[CoO2]~2. This compound contains the same triangular Co planes as Na...
Interplay between magnetic properties and thermoelectricity in misfit and Na cobaltates (2007)
Bobroff, J., Hebert, S., Lang, G., Mendels, P., Pelloquin, D., Maignan, A.
We present a comparative study of CoO2 layers in the Bi-misfit and NaxCoO2 cobaltates. Co NMR measures the intrinsic susceptibility of the Co layers and is not affected by spurious contributions. At...
Electronic Correlations in CoO2, the Parent Compound of Triangular Cobaltates (2007)
De Vaulx, C., Julien, M. -H., Berthier, C., Hebert, S., Pralong, V., Maignan, A.
A 59Co NMR study of CoO2, the x=0 end member of AxCoO2 (A = Na, Li...) cobaltates, reveals a metallic ground state, though with clear signs of strong electron correlations: low-energy spin...
Metastable diamagnetism in Sm0.1Ca0.84Sr0.06MnO3 manganite (2006)
Markovich, V., Fita, I., Puzniak, R., Martin, C., Kikoin, K., Wisniewski, A., ...
Magnetic properties of polycrystalline Sm0.1Ca0.84Sr0.06MnO3 in pristine and metastable states have been investigated in wide range of temperatures and magnetic fields. It was found that below Curie...
Scaling behavior in thermoelectric misfit cobalt oxides (2006)
Limelette, P., Hebert, S., Hardy, V., Fresard, R., Simon, Ch., Maignan, A.
We investigate both thermoelectric and thermodynamic properties of the misfit cobalt oxide [Bi$_{1.7}$Co$_{0.3}$Ca$_{2}$O$_{4}$]$^{RS}_{0.6}$CoO$_{2}$. A large negative magnetothermopower is found to...
Thermoelectric power in misfit cobalties ceramics: optimization by chemical substitutions (2006)
Maignan, A., Pelloquin, D., Hebert, S., Klein, Y., Hervieu, M.
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
Strongly correlated properties of the thermoelectric cobalt oxide Ca3Co4O9 (2005)
Limelette, P., Hardy, V., Auban-Senzier, P., Jerome, D., Flahaut, D., Hebert, S., ...
We have performed both in-plane resistivity, Hall effect and specific heat measurements on the thermoelectric cobalt oxide Ca$_{3}$Co$_{4}$O$_{9}$. Four distinct transport regimes are found as a...
Eng, H., Prellier, W., Hebert, S., Grebille, D., Mechin, L., Mercey, B.
Thin films of the misfit cobaltite Ca3Co4O9 were grown on (0001)-oriented (c-cut) sapphire substrates, using the pulsed-laser deposition techniques. The dependence of the thermoelectric/transport...
Quantum Tunneling of the Magnetization in the Ising Chain Compound Ca3Co2O6 (2004)
Maignan, A., Hardy, V., Hebert, S., Drillon, M., Lees, M. R., Petrenko, O., ...
The magnetic behavior of the Ca3Co2O6 spin chain compound is characterized by a large Ising-like character of its ferromagnetic chains, set on triangular lattice, that are antiferromagnetically...
Dome-shaped magnetic phase diagram of thermoelectric layered cobaltites (2003)
Sugiyama, J., Brewer, J. H., Ansaldo, E. J., Itahara, H., Tani, T., Mikami, M., ...
Using muon spin spectroscopy we have found that, for both Na$_x$CoO$_2$ (0.6 $\leq x \leq$ 0.9) and 3- and 4-layer cobaltites, a common low temperature magnetic state (which in some cases is manifest...
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
Hardy, V., Majumdar, S., Crowe, S., Lees, M. R., Paul, D. McK., Herve, L., ...
Field-induced magnetization jumps with similar characteristics are observed at low temperature for the intermetallic germanide Gd5Ge4and the mixed-valent manganite Pr0.6Ca0.4Mn0.96Ga0.04O3. We report...
Hardy, V., Yaicle, C., Hebert, S., Maignan, A., Martin, C., Hervieu, M., ...
Substitutions in the Mn-sublattice of antiferromagnetic, charge and orbitally ordered manganites was recently found to produce intriguing metamagnetic transitions, consisting of a succession of sharp...
Hardy, V., Lees, M. R., Maignan, A., Hebert, S., Flahaut, D., Martin, C., ...
Specific heat measurements were carried out on the closely related spin-chain oxides Ca3Co2O6 and Ca3CoRhO6. Both compounds consist of Ising magnetic chains that are arranged on a triangular lattice....
Staircase effect in metamagnetic transitions of charge and orbitally ordered manganites (2003)
Hardy, V., Hebert, S., Maignan, A., Martin, C., Hervieu, M., Raveau, B.
This paper reports on peculiar metamagnetic transitions which take place in antiferromagnetic, charge and orbitally ordered (AFCOO) manganites. At very low temperatures, the virgin magnetization...
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., ...
Substitutions at the Mn-site of the charge-ordered Pr0.5Ca0.5MnO3 manganite is an effective way to induce abrupt jumps on the magnetic field driven magnetization curve. In order to get new insights...
Ultra-sharp magnetization steps in perovskite manganites (2002)
Mahendiran, R., Maignan, A., Hebert, S., Martin, C., Hervieu, M., Raveau, B., ...
We report a detailed study of step-like metamagnetic transitions in the magnetization and resistivity of polycrystalline Pr0.5Ca0.5Mn0.95Co0.05O3. The steps have a sudden onset below a critical...
Daly, J S, Dodge, R A, Glew, R H, Soja, D T, DeLuca, B A, Hebert, S
The susceptibility of Pseudomonas aeruginosa to imipenem has been shown to vary according to zinc concentration in the media. MICs of imipenem for 68 unique clinical isolates of P. aeruginosa were...
Mg(2+)-dependent inward rectification of ROMK1 potassium channels expressed in Xenopus oocytes.
Nichols, C G, Ho, K, Hebert, S
1. ROMK1 potassium channel currents were examined in Xenopus oocytes by two-microelectrode voltage-clamp and patch-clamp techniques following injection of oocytes with in vitro transcribed ROMK1...
Daly, J S, Dodge, R A, Glew, R H, Soja, D T, DeLuca, B A, Hebert, S
The susceptibility of Pseudomonas aeruginosa to imipenem has been shown to vary according to zinc concentration in the media. MICs of imipenem for 68 unique clinical isolates of P. aeruginosa were...
Mg(2+)-dependent inward rectification of ROMK1 potassium channels expressed in Xenopus oocytes.
Nichols, C G, Ho, K, Hebert, S
1. ROMK1 potassium channel currents were examined in Xenopus oocytes by two-microelectrode voltage-clamp and patch-clamp techniques following injection of oocytes with in vitro transcribed ROMK1...