Zobrazeno 1 - 10
of 38
pro vyhledávání: '"J. M. Gaite"'
Publikováno v:
Applied Magnetic Resonance. 21:39-48
An electron paramagnetic resonance (EPR) study of Fe3+ centers in kyanite AlSi2O5 has been performed on a natural blue single crystal at 34.40 GHz. Three Fe3+ centers have been observed. One of them, arising from 10% of the Fe3+ amount, presents weak
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa8a061cc5095c7d1041065a18f08207
https://doi.org/10.1007/bf03162438
https://doi.org/10.1007/bf03162438
Autor:
J. M. Gaite, G. R. Bulka, N. M. Nizamutdinov, A. A. Galeev, V. M. Vinokurov, V. V. Izotov, N. M. Khasanova
Publikováno v:
Journal of Physics: Condensed Matter. 10:7609-7618
A single crystal of doped with was studied by EPR at room temperature and at using an X-band spectrometer. There are two magnetically equivalent spectra characterized by the main Stevens constants and . The spectra are described by a general spin Ham
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::332d2cb745c92cc220ed84bcee244b8f
https://doi.org/10.1088/0953-8984/10/34/014
https://doi.org/10.1088/0953-8984/10/34/014
Autor:
J.-M. Gaite, H. Rager
Publikováno v:
Journal of Physics: Condensed Matter. 9:10033-10039
In an electron paramagnetic resonance study of a synthetic single crystal of forsterite, , one spectrum of with maximum local symmetry -1 was observed. This spectrum arises from substituted for at the position. The second-order constants of the spect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::30801b4fcd92cf74d1f0b21048a41ade
https://doi.org/10.1088/0953-8984/9/45/029
https://doi.org/10.1088/0953-8984/9/45/029
Publikováno v:
Clays and Clay Minerals. 45:496-505
The Fe3+ substituted for Al3+ at the 2 octahedral positions is one of the most common impurities in the kaolinite structure detected by electron paramagnetic resonance (EPR). Evidence has been provided for a relationship between the shape of EPR spec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::04ae0610fb3ec8225204ffa3c985c326
https://doi.org/10.1346/ccmn.1997.0450402
https://doi.org/10.1346/ccmn.1997.0450402
Publikováno v:
Journal of Physics: Condensed Matter. 3:7877-7886
An EPR study of Fe3+ centres in single crystals of KTiOPO4 (KTP) has been performed. Two crystals grown under identical conditions have been used in the experiment carried out at the Q-band frequency: the first was iron doped and the other was undope
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::867e03c1b8f4a705501fd80d6a87b779
https://doi.org/10.1088/0953-8984/3/40/009
https://doi.org/10.1088/0953-8984/3/40/009
Publikováno v:
Physics and Chemistry of Minerals
Physics and Chemistry of Minerals, Springer Verlag, 2003, 30, pp.(6) 366-372. ⟨10.1007/s00269-003-0325-3⟩
Physics and Chemistry of Minerals, Springer Verlag, 2003, 30, pp.(6) 366-372. ⟨10.1007/s00269-003-0325-3⟩
Only one part of the EPR lines of a kaolinite spectrum of structural Fe 3+ is clearly observable because of the overlapping of other lines with other spectra. For this reason, to determine the structural Fe 3+ concentration we used the line near g=9,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::828ee59bd43c43b65b94f201bea42826
https://hal-insu.archives-ouvertes.fr/hal-00069459
https://hal-insu.archives-ouvertes.fr/hal-00069459
Autor:
J. M. Gaite, Czesław Rudowicz, N. M. Nizamutdinov, V. M. Vinokurov, N. M. Khasanova, G. R. Bulka, A. A. Galeev
Publikováno v:
Journal of Magnetic Resonance
Journal of Magnetic Resonance, Elsevier, 2002, 155, pp.(1) 57-63. ⟨10.1006/jmre.2002.2512⟩
Journal of Magnetic Resonance, Elsevier, 2002, 155, pp.(1) 57-63. ⟨10.1006/jmre.2002.2512⟩
Electron paramagnetic resonance study of a natural single crystal of natrolite was carried out at the frequency nu=36.772 GHz at room temperature. The angular dependence of the four symmetry-related spectra of Fe(3+) in the three crystallographic pla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ae65819a3edeeb81bb8bfae7c589f92f
https://hal-insu.archives-ouvertes.fr/hal-00076878
https://hal-insu.archives-ouvertes.fr/hal-00076878
Publikováno v:
Applied Magnetic Resonance
Applied Magnetic Resonance, Springer Verlag, 2001, 20, pp.307-315. ⟨10.1007/BF03162283⟩
Applied Magnetic Resonance, Springer Verlag, 2001, 20, pp.307-315. ⟨10.1007/BF03162283⟩
Two synthetic beryls (Al2Be3Si6O18) of different color (purple and blue-green) were studied with electron paramagnetic resonance (EPR) and optical spectroscopy. In both crystals, the known spectra of Cu2+ and Fe3+ were observed with the same relative
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dbee4fc66d3721c131d863f48cabe660
https://hal-insu.archives-ouvertes.fr/hal-00089733
https://hal-insu.archives-ouvertes.fr/hal-00089733
Publikováno v:
Physics and Chemistry of Minerals. 20
The electron paramagnetic resonance (EPR) spectra of Fe3+ in a well cristallized kaolinite from Decazeville in France are well resolved. It is shown that in this sample there are mainly two slightly different spectra, well separated at low temperatur
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a3470cb040883bac89be9c00b167d85c
https://doi.org/10.1007/bf00208137
https://doi.org/10.1007/bf00208137
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 56:s365-s365
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::055cd5c3dba22c03dd359a356d7cc266
https://doi.org/10.1107/s0108767300027641
https://doi.org/10.1107/s0108767300027641