๐”– Bobbio Scriptorium
โœฆ   LIBER   โœฆ

Electron Paramagnetic Resonance Study of Pr4+ Ions Doped in BaHfO3 Perovskite

โœ Scribed by Keitaro Tezuka; Yukio Hinatsu

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
152 KB
Volume
156
Category
Article
ISSN
0022-4596

No coin nor oath required. For personal study only.

โœฆ Synopsis

Electron paramagnetic resonance (EPR) spectra of tetravalent praseodymium ions doped in the cubic perovskite compound BaHfO 3 have been measured at 4.2 K. A very large hyper5ne interaction with the 141 Pr nucleus was observed in the spectrum of Pr 4ุ‰ /BaHfO 3 . The results were analyzed based on the weak 5eld approximation, and the g value ("g" โ€ซุโ€ฌ 0.619) and a hyper5ne coupling constant (A โ€ซุโ€ฌ 0.0589 cm ุŠ1 ) were obtained. The measured g value is much smaller than "ุŠ 10 7 ", which indicates that the crystal 5eld e4ect on the behavior of a 4 f electron is large. These g and A values were compared with the EPR results for other f 1 ions in an octahedral crystal 5eld.

๐Ÿ“œ SIMILAR VOLUMES

Electron Paramagnetic Resonance Study of
Electron Paramagnetic Resonance Study of Pr4+Ions Doped in BaSnO3, Ba2SnO4, and Ba3Sn2O7
โœ Yukio Hinatsu; Keitaro Tezuka ๐Ÿ“‚ Article ๐Ÿ“… 1998 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 281 KB

The isotropic electron paramagnetic resonance (EPR) spectra of powders with Pr 4ุ‰ doped in the cubic perovskite BaSnO3 and the layered perovskites Ba2SnO4 and Ba3Sn2O7 were measured at 4.2 K. Very large hyperfine interactions with the 141 Pr nucleus were observed in all of the host materials. The re

Electron Paramagnetic Resonance Spectra
Electron Paramagnetic Resonance Spectra of Pr4+Ions Doped in Pyrochlore-Type Compounds La2Sn2O7and La2Zr2O7
โœ Keitaro Tezuka; Yukio Hinatsu ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 198 KB

The electron paramagnetic resonance spectra of powders with the Pr 4ุ‰ ions doped in the B sites of the pyrochlore-type compounds A 2 B 2 O 7 (A โ€ซุโ€ฌ La; B โ€ซุโ€ฌ Sn or Zr) were successfully measured at 4.2 K. A very large hyperfine interaction with the 141 Pr nucleus was observed. The spectra were isotr

Electron Paramagnetic Resonance Spectrum
Electron Paramagnetic Resonance Spectrum of Pr4+ in BaCeO3
โœ Yukio Hinatsu; Norman Edelstein ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 243 KB

The electron paramagnetic resonance spectrum of a powder of \(\mathrm{Pr}^{4+}\) in \(\mathrm{BaCeO}_{3}\) was measured at \(8.5 \mathrm{~K}\). A very large hyperfine interaction with the \({ }^{141} \mathrm{Pr}\) nucleus was observed. In addition to the allowed hyperfine transitions, forbidden hype

Electron Paramagnetic Resonance Spectrum
Electron Paramagnetic Resonance Spectrum of Pr4+in Sr2CeO4
โœ Yukio Hinatsu; Makoto Wakeshima; Norman Edelstein; Ian Craig ๐Ÿ“‚ Article ๐Ÿ“… 1999 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 166 KB

The electron paramagnetic resonance (EPR) spectra of Pr 4; diluted in Sr 2 CeO 4 were measured at 4.2 K. A very large hyperfine interaction with the 141 Pr nucleus was observed. The spectra were anisotropic, due to the distortion of the octahedral oxygen coordination symmetry around the Pr 4ุ‰ ion. T

Magnetic Susceptibility and Electron Par
Magnetic Susceptibility and Electron Paramagnetic Resonance Study of KUO3 with Cubic Perovskite Structure
โœ Yukio Hinatsu ๐Ÿ“‚ Article ๐Ÿ“… 1994 ๐Ÿ› Elsevier Science ๐ŸŒ English โš– 290 KB

\(\mathrm{KUO}_{3}\) (cubic perovskite structure) was prepared and its magnetic susceptibility was measured from \(4.2 \mathrm{~K}\) to room temperature. It was found that a magnetic anomaly (magnetic transition) occurred at \(16.8 \mathrm{~K}\) and that this transition temperature decreased with in