Temat: electron paramagnetic resonance - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: EPR measurements of ceramic cores used in the aircraft industry
Autorzy:: Stefaniuk, I.
Rogalska, I..
Potera, P.
Wróbel, D.
Powiązania:: https://bibliotekanauki.pl/articles/148814.pdf
Data publikacji:: 2013
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: Al2O3
electron paramagnetic resonance (EPR)
mullite
nanopowders
Opis:: In this work the electron paramagnetic resonance (EPR) spectra of Al2O3 and ZrO2 powders were measured for different size of grains (0.074, 0.044 mm) as well as the mullites (0.07 and 0.12 mm). Also were investigated the ceramic cores. The measurements were performed at room temperature and in the temperature range from 140 up to 380 K. The main purpose of this work was to investigate the possible relationships between the EPR spectra and the size of powder grains as well as the identification of EPR spectra in view of the potential application of EPR technique as a fingerprinting method.
Źródło:: Nukleonika; 2013, 58, 3; 391-395
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 2.

Tytuł:: EPR study of ZnO:Co thin films grown by the PLD method
Autorzy:: Cieniek, B.
Stefaniuk, I.
Virt, I.
Powiązania:: https://bibliotekanauki.pl/articles/146744.pdf
Data publikacji:: 2013
Wydawca:: Instytut Chemii i Techniki Jądrowej
Tematy:: electron paramagnetic resonance (EPR)
diluted magnetic semiconductor (DMS)
ZnO:Co
Curie temperature
Opis:: We have studied magnetic properties of zinc-oxide composite doped with a relatively high concentration (4%) of Co ions. Samples were obtained by the pulsed laser deposition (PLD) method with different parameters of the laser ablation. For various samples, the power of laser was changed as well as the temperature of sample heating. Electron paramagnetic resonance (EPR) measurements were carried out and temperature dependence of the EPR spectra was obtained. Analysis of the temperature dependences of the integral intensity of EPR spectra was carried out using the Curie-Weiss law. Fitting yields the following values θCW = 150 K and C = 1.6710, where C is the Curie constant, and θCW is the paramagnetic Curie temperature.
Źródło:: Nukleonika; 2013, 58, 3; 359-363
0029-5922
1508-5791
Pojawia się w:: Nukleonika
Dostawca treści:: Biblioteka Nauki

Artykuł

Skocz do pozycji: 3.

Tytuł:: Electron paramagnetic resonance studies of manganese and cobalt ions in YAlO3 crystals
Autorzy:: Stefaniuk, I.
Rogalska, I
Suchocki, A
Berkowski, M.
Cieniek, B.
Potera, P.
Powiązania:: https://bibliotekanauki.pl/articles/174068.pdf
Data publikacji:: 2014
Wydawca:: Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
Tematy:: electron paramagnetic resonance (EPR)
spin Hamiltonian
Mn2+
Mn4+
Co2+
Fe3+
Cr3+
Nd3+ and Er3+ ions
YAlO3 (YAP) crystals
Opis:: The results of X-band electron paramagnetic resonance measurements of Mn2+ and Mn4+ ions in YAlO3 (YAP) crystals in the temperature range 100–300 K are presented. Additionally, we observe electron paramagnetic resonance spectra of unintentional impurities Fe3+ and Cr3+ in YAP crystals. The angular dependence for Mn ions in YAP crystals can be presented. We aim at obtaining a better insight into the spectroscopic properties of paramagnetic Mn centers and structural information about their nearest environment in YAP host and at determining the valence of manganese ion. In this paper we compare electron paramagnetic resonance spectra for Co and Mn ions in YAP crystals.
Źródło:: Optica Applicata; 2014, 44, 1; 113-121
0078-5466
1899-7015
Pojawia się w:: Optica Applicata
Dostawca treści:: Biblioteka Nauki

Artykuł

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