Y3Ga5O12 powder doped with Cr3+ ions was prepared, and was characterized by powder X-ray diffraction analysis. Typical absorption spectra of Cr3+ in octahedral symmetry contained several spin-allowed absorption bands, of which four were usually well resolved. Absorption bands at 268, 373, 438, and 612 nm were assigned to the 4A2g (F) → 4T1g (P), 4A2g (F) → 2A1g (G), 4A2g (F) → 4T1g (F), and 4A2g (F) → 4T2g (F) transitions, respectively. In EPR spectra, two resonance signals with g = ~4.03 and ~1.92 and g = ~4.79 and ~1.92 were observed at room temperature and 123 K, respectively. The low-field line of the spectrum was attributed to isolated Cr3+ ions and the high field line mainly to Cr3+–Cr3+ exchange-coupled pairs. The Cr3+ crystal field and spin Hamiltonian were evaluated from the resonance line positions observed in the EPR spectra. The nature of bonding in the crystal is discussed on the basis of correlation of optical and EPR data.
Research on Chemical Intermediates – Springer Journals
Published: Jul 23, 2014
It’s your single place to instantly
discover and read the research
that matters to you.
Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.
All for just $49/month
Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly
Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.
Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.
Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.
All the latest content is available, no embargo periods.
“Hi guys, I cannot tell you how much I love this resource. Incredible. I really believe you've hit the nail on the head with this site in regards to solving the research-purchase issue.”Daniel C.
“Whoa! It’s like Spotify but for academic articles.”@Phil_Robichaud
“I must say, @deepdyve is a fabulous solution to the independent researcher's problem of #access to #information.”@deepthiw
“My last article couldn't be possible without the platform @deepdyve that makes journal papers cheaper.”@JoseServera