Pressure effect on the charge density wave instabilities in the quasi-two-dimensional conductors (PO2)4(WO3)2m(m= 4, 5, 6) and η-Mo4O11

Autor: U. Beierlein, C. Schlenker, Daniel Groult, J. Beille, Jean Dumas

Publikováno v: Journal of Physics: Condensed Matter. 13:1517-1527

We report a comparative study of the electrical resistivity under hydrostatic pressure up to 18?kbar of the quasi-two-dimensional conductors (PO2)4(WO3)2m (m = 4, 5, 6) and ?-Mo4O11, which show Peierls transitions towards a charge density wave state.

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::3634ded77892b5020265d98c7a904ae3
https://doi.org/10.1088/0953-8984/13/7/313

Physical properties of the weak itinerant ferromagnet CoVSb and related semi-Heusler compounds

Autor: J. Pierre, R. V. Skolozdra, Janusz Tobola, K Kaczmarska, G.A Melnik, J. Beille

Publikováno v: Journal of Magnetism and Magnetic Materials. 187:210-220

CoVSb is a weak itinerant ferromagnet with one electron in the conduction band. Its physical properties (magnetization, resistivity, Hall effect, thermopower, pressure dependence of resistivity, ESR) and its electronic structure calculated by the KKR

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::709a1750ec588586a64943742c09006a
https://doi.org/10.1016/s0304-8853(98)00125-5

Study of the superconducting transition at high pulsed current of bulk Bi-2223 sintered and textured by hot forging

Autor: L. Porcar, D. Bourgault, J.M. Barbut, Pascal Tixador, O. Belmont, Jacques G. Noudem, M. Barrault, J. Beille, Robert Tournier

Publikováno v: Physica C: Superconductivity
Physica C: Superconductivity, North-Holland, 1997, 281 (4), pp.339-344. ⟨10.1016/S0921-4534(97)01480-9⟩

In this study, the transition of Bi 1.8 Pb 0.4 Sr 2 Ca 2.2 O 10.3+ x ceramics in the form of both textured and sintered bars is investigated at 77 K using high pulsed currents with a duration varying from 1.25 to 20 ms. Two types of behaviour are obs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::64e939715ec67238f3466ba0cc5b7f92
https://doi.org/10.1016/s0921-4534(97)01480-9

Complex susceptibility of superconducting BiPbSrCaCuO ceramics fabricated through combined magnetic melt texturing and hot pressing

Autor: Robert Tournier, J. Beille, B. Loegel, Jacques G. Noudem, Dominique Berling, Ahmed Mehdaoui

Publikováno v: Superconductor Science and Technology
Superconductor Science and Technology, IOP Publishing, 1996, 9 (3), pp.205-210. ⟨10.1088/0953-2048/9/3/013⟩

Complex a.c. susceptibility measurements in a broad field range () have been made on Bi - Pb - Sr - Ca - Cu - O (Bi-2223 phase) bulk samples obtained by combined magnetic melt texturing and hot pressing. Highly anisotropic properties are observed. Im

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4719dbe45ed93622e70d51eb95454c46
https://doi.org/10.1088/0953-2048/9/3/013

New apparatus for ceramic texturing working under uniaxial stress and in a magnetic field

Autor: A Draperi, André Sulpice, Robert Tournier, Jacques G. Noudem, J. Beille

Publikováno v: Superconductor Science and Technology
Superconductor Science and Technology, IOP Publishing, 1993, 6 (11), pp.795-798. ⟨10.1088/0953-2048/6/11/007⟩

We have developed a new versatile apparatus combining the effect of hot pressing and the effect of magnetic field to texture HTSC (high-temperature superconductor) ceramics. The experimental set-up allows application of uniaxial stress up to 1100 deg

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d25fab892f6cd053bf91af65ebd8ebef
https://doi.org/10.1088/0953-2048/6/11/007