Zobrazeno 1 - 10
of 2 194
pro vyhledávání: '"Hervieu M"'
Publikováno v:
Phys. Rev. B 79 (2009) 184108
Calcium cobaltite thin films with a ratio Ca/Co=1 were grown on (101)-NdGaO3 substrate by the pulsed laser deposition technique. The structure of the deposited metastable phase is solved using a precession electron diffraction 3D dataset recorded fro
Externí odkaz:
http://arxiv.org/abs/0904.0849
We report on the magnetic properties of the manganite Bi_{1-x}Ca_{x}MnO_3 (x=0.33) at low temperature. The analysis of the field expansion of the ac susceptibility and the observation of aging properties make clear that a spin glass phase appears bel
Externí odkaz:
http://arxiv.org/abs/0803.2016
Autor:
Singh, M. P., Grygiel, C., Sheets, W. C., Boullay, P., Hervieu, M., Prellier, W., Mercey, B., Simon, Ch., Raeau, B.
Publikováno v:
Appl. Phys. Lett. 91 (2007) 012503
Epitaxial La2NiMnO6 thin films have been grown on (001)-oriented SrTiO3 using the PLD technique. The thin films are semiconducting and FM with a TC close to 270K, a coercive field of 920Oe, and a saturation magnetization of 5muB per f.u. TEM, conduct
Externí odkaz:
http://arxiv.org/abs/0706.1414
Autor:
Daoud-Aladine, A., Martin, C., Chapon, L. C., Hervieu, M., Knight, K. S., Brunelli, M., Radaelli, P. G.
The structural and magnetic properties of the hexagonal four-layer form of SrMnO$_3$ have been investigated by combining magnetization measurements, electron diffraction and high-resolution synchrotron X-ray and neutron powder diffraction. Below 350K
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609235
Publikováno v:
Journal of Physics: Condensed Matter 18, 2157 (2006)
The magnetic and magnetotransport properties of the Sr3Fe2-xCoxO7-d system (0.2 <= x <= 1.0) were systematically investigated. This oxide system exhibits a giant magnetoresistance (GMR) effect at low temperatures, reaching up to 80% in 7 T at 5 K. Ac
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601428
Autor:
Guilmeau, E., Pollet, M., Grebille, D., Hervieu, M., Muguerra, H., Cloots, R., Mikami, M., Funahashi, R.
This paper has been withdrawn
Comment: This paper has been withdrawn
Comment: This paper has been withdrawn
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504547
Publikováno v:
Physical Review B 71, 214424 (2005)
The magnetic and magnetotransport properties of the oxygen deficient perovskites, SrCo1-xMxO3-d with M = Nb and Ru, were investigated. Both Nb- and Ru-substituted cobaltites are weak ferromagnets, with transition temperatures Tm of 130-150 K and 130-
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504379
Publikováno v:
Applied Physics Letters 86, 192504 (2005)
The oxygen-deficient perovskite cobaltite SrCo1-xNbxO3-d was synthesized by direct solid-state reaction and its magnetotransport properties were investigated. This cobaltite exhibits an unusual ferromagnetic behavior with a transition temperature Tm
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504378
Autor:
Yaicle, C., Martin, C., Jirak, Z., Fauth, F., Andre, G., Suard, E., Maignan, A., Hardy, V., Retoux, R., Hervieu, M., Hebert, S., Simon, R. Raveau Ch., Saurel, D., Brulet, A., Bouree, F.
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 into the origin of this remarkable feature, the Pr0.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0310167
Autor:
Hardy, V., Majumdar, S., Crowe, S., Lees, M. R., Paul, D. McK., Herve, L., Maignan, A., Hebert, S., Martin, C., Yaicle, C., Hervieu, M., Raveau, B.
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 that the field location -and even the existence- o
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309389