Zobrazeno 1 - 10
of 133
pro vyhledávání: '"W. Treutmann"'
Autor:
Clemens Pietzonka, W. Treutmann, Anatoliy Senyshyn, Günther J. Redhammer, Martin Meven, Gerold Tippelt, Björn Pedersen, Astrid Pachler, Markus Hoelzel, Georg Roth, Sebastian Prinz, Georg Amthauer
Publikováno v:
Physics and Chemistry of Minerals. 38:139-157
The compound NaFeGe2O6 was grown synthetically as polycrystalline powder and as large single crystals suitable for X-ray and neutron-diffraction experiments to clarify the low temperature evolution of secondary structural parameters and to determine
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b827f3e0cb127d0cb0489d14a63b963
https://doi.org/10.1007/s00269-010-0390-3
https://doi.org/10.1007/s00269-010-0390-3
Publikováno v:
Modern Physics Letters B. 19:1141-1149
Mössbauer measurements [T (temperature) = 4.2–298 K (room temperature), H (external magnetic field) = 0, 0.25, 0.5, 2, 4, 12, 40 kOe], carried out in mixed spinel ferrite ( Ga x Fe 1-x)A [NiCr] B O 4 (x = 0.8), show the presence of pinned and entr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::87bb00d779656728d33ef88e2a23703c
https://doi.org/10.1142/s0217984905009110
https://doi.org/10.1142/s0217984905009110
Publikováno v:
Journal of Metastable and Nanocrystalline Materials. 23:301-304
Electron microscope studies are reported of MWCNTs without and with metallic encapsulations prepared by pyrolysis of organo-metallic precursors such as iron(II)phthalocyanine and ferrocene/anthracene mixtures. For straight and well-ordered MWCNTs, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d76c138fefccb50d3cf2debcdf6679d
https://doi.org/10.4028/www.scientific.net/jmnm.23.301
https://doi.org/10.4028/www.scientific.net/jmnm.23.301
Publikováno v:
Journal of Crystal Growth. 273:303-310
Single crystals of Ca2Co1−xZnxSi2O7 solid solutions with 0 ≤ x ≤ 1 were synthesized by the floating zone melting technique. A small melting length and a growing speed of 1.0 mm/h were suitable for obtaining high quality crystals. Two-dimensiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fb36a8138c6b5b82d45d2045cded4c03
https://doi.org/10.1016/j.jcrysgro.2004.07.085
https://doi.org/10.1016/j.jcrysgro.2004.07.085
Publikováno v:
Journal of Crystal Growth. 272:772-777
Hybrid structures consisting of ferromagnetic Mn(Ga)As clusters, which are embedded defect-free in a p-GaAs:Mn matrix, are realized by epitaxial growth using metalorganic vapour-phase epitaxy (MOVPE). The successful Te-co-doping of the GaAs:Mn matrix
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd0550b26a6c0ca5f77cd3c903f87abb
https://doi.org/10.1016/j.jcrysgro.2004.08.068
https://doi.org/10.1016/j.jcrysgro.2004.08.068
Publikováno v:
Journal of Crystal Growth. 261:330-335
We have investigated surface morphologies and cluster formation in Mn-incorporated (GaIn)As layers grown by metal-organic vapor phase epitaxy (MOVPE) on InP (1 0 0) substrates. Whisker growth occurs on the layer surfaces under low V/III ratios and lo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::444b0c74efa7f5fa48ee635c3eb747d4
https://doi.org/10.1016/j.jcrysgro.2003.11.064
https://doi.org/10.1016/j.jcrysgro.2003.11.064
Autor:
Wolfgang Stolz, W. Treutmann, Kerstin Volz, K. Megges, S. Nau, T. Torunski, Jörg Lorberth, M. Lampalzer
Publikováno v:
Journal of Crystal Growth. 248:474-478
We present the results of the epitaxial overgrowth of magnetic (MnGa)As-cluster structures with GaAs, (AlGa)As and AlAs using metal organic vapor phase epitaxy (MOVPE). The structural differences in the overgrowth are investigated by means of atomic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b31b4c928f77f4ca2f47c1e3db9207d
https://doi.org/10.1016/s0022-0248(02)01920-6
https://doi.org/10.1016/s0022-0248(02)01920-6
Autor:
Gernot Heger, Guy Dhalenne, J. Berthon, R. Le Toquin, A. Revcolevschi, Werner Paulus, Alain Cousson, Shoichi Hosoya, W. Treutmann
Publikováno v:
Solid State Sciences. 4:565-573
Single crystal neutron diffraction was used to characterize the structural evolution of electrochemically oxidized La2NiO4+δ crystals as a function of temperature. In order to better describe the disorder of the apical and interstitial oxygen atoms
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4422358f202338032f5eea80173d581c
https://doi.org/10.1016/s1293-2558(02)01299-2
https://doi.org/10.1016/s1293-2558(02)01299-2
Autor:
Koppelhuber-Bitschnau B, Georg Amthauer, Werner Paulus, Günther J. Redhammer, G. Andre, Werner Lottermoser, Georg Roth, W. Treutmann
Publikováno v:
Physics and Chemistry of Minerals. 28:337-346
Single crystals of Li-aegirine LiFe3+Si2O6 were synthesized at 1573 K and 3 GPa, and a polycrystalline sample suitable for neutron diffraction was produced by ceramic sintering at 1223 K. LiFe3+Si2O6 is monoclinic, space group C2/c, a=9.6641(2) A, b=
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c32fb9af5ce295e64a5e4ab8e83c97d
https://doi.org/10.1007/s002690100159
https://doi.org/10.1007/s002690100159
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 627:687-692
Einkristalle folgender Phosphate wurden in einem Spiegelofen nach dem Zonenschmelzverfahren hergestellt und ihre Kristallstrukturen verfeinert (0,02 < R1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a63ac6a801af20737c563c74e8b03cfa
https://doi.org/10.1002/1521-3749(200104)627:4<687::aid-zaac687>3.0.co
https://doi.org/10.1002/1521-3749(200104)627:4<687::aid-zaac687>3.0.co