Zobrazeno 1 - 10
of 37
pro vyhledávání: '"W. Westerburg"'
Publikováno v:
Solid State Communications. 122:201-206
We suceeded in the preparation of polycrystalline Ca2FeReO6 which has a Curie temperature TC of 540 K, the highest value of all magnetic perovskites investigated till now. This material has been characterised by X-ray and neutron powder diffraction.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4541f123fc625274115aeeaf6623a63a
https://doi.org/10.1016/s0038-1098(02)00079-0
https://doi.org/10.1016/s0038-1098(02)00079-0
Publikováno v:
Materials Science Forum. :549-552
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06b31f02ddcb9db86f8dcfbdecea2486
https://doi.org/10.4028/www.scientific.net/msf.373-376.549
https://doi.org/10.4028/www.scientific.net/msf.373-376.549
Publikováno v:
Physical Review B. 62:R767-R770
By pulsed-laser deposition epitaxial thin films of ${\mathrm{Sr}}_{2}{\mathrm{FeMoO}}_{6}$ have been prepared on (100) ${\mathrm{SrTiO}}_{3}$ substrates. Already for a deposition temperature of 320 \ifmmode^\circ\else\textdegree\fi{}C epitaxial growt
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::989f1771b67ecf8578c5a2f783c70798
https://doi.org/10.1103/physrevb.62.r767
https://doi.org/10.1103/physrevb.62.r767
Publikováno v:
The European Physical Journal B. 14:509-513
We measured the temperature dependence of the linear high field pH of La0.67Ca0.33MnO3 Tc = 232K) and La0.67Sr0.33MnO3 Tc = 345K) thin films in the temperature range from 4 K up to 360 K in magnetic fields up to 20 T. At low temperatures we find a ch
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7830b78eac99e4296e02b8e3e6397c9f
https://doi.org/10.1007/s100510051059
https://doi.org/10.1007/s100510051059
Publikováno v:
Physical Review B. 58:14966-14970
We present a detailed study of the activated resistivity of ${\mathrm{La}}_{0.67}{\mathrm{Ca}}_{0.33}{\mathrm{MnO}}_{3}$ films up to 600 K under the influence of high magnetic fields. Data in zero field can be explained by small polaron hopping as tr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::25421e20c864b5d55f055764435235dd
https://doi.org/10.1103/physrevb.58.14966
https://doi.org/10.1103/physrevb.58.14966
Publikováno v:
Physical Review B. 57:10252-10255
We report on detailed Hall-effect measurements of thin films of ${\mathrm{La}}_{0.67}{\mathrm{Ca}}_{0.33}{\mathrm{MnO}}_{3}$ above and below the metal-insulator transition. In the metallic ferromagnetic regime, we find a temperature-independent holel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2601c5d23dab0bd4f0ca274ea49cad0a
https://doi.org/10.1103/physrevb.57.10252
https://doi.org/10.1103/physrevb.57.10252
Publikováno v:
Journal of Magnetism and Magnetic Materials. :536-538
The giant negative magnetoresistance in manganites has been investigated from the Curie temperature T c up to 600 K (2.6 T c ) in magnetic fields up to 8 T. Nonadiabatic small polaron hopping can successfully describe the temperature dependence of th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::27d284609d20b386e7991bd8577f13ec
https://doi.org/10.1016/s0304-8853(98)00882-8
https://doi.org/10.1016/s0304-8853(98)00882-8
Publikováno v:
Journal of Magnetism and Magnetic Materials. :509-511
We prepared thin films of La 0.67 Ca 0.33 MnO 3 on different substrates with DC sputtering. The measured transport and magnetic properties could be explained by a lattice mismatch induced by the substrate. Hall effect measurements showed a holelike c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::301f23892c01f172791e0d3ad6350073
https://doi.org/10.1016/s0304-8853(98)00859-2
https://doi.org/10.1016/s0304-8853(98)00859-2
Publikováno v:
Advances in Solid State Physics ISBN: 9783540420002
In this article we show magnetotransport of two prototypical (nearly) half metallic perowskites La2/3Ca1/3MnO3 and Sr2FeMoO6. In a half metal the spin polarisation at the Fermi energy is complete and tunneling magnetoresistive devices of high sensiti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aa53a0ab7a84837566a32980d5f9cbc4
https://doi.org/10.1007/3-540-44946-9_47
https://doi.org/10.1007/3-540-44946-9_47
We prepared high epitaxial thin films of the compound Sr_2FeMoO_6 with narrow rocking curves by pulsed laser deposition. The diagonal and nondiagonal elements of the resistivity tensor were investigated at temperatures from 4 K up to room temperature
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fc6fe20142e7f7c7a4042937a584933e
http://arxiv.org/abs/cond-mat/9908361
http://arxiv.org/abs/cond-mat/9908361