ESR of Mn2+ diffused into sodium β-alumina

R. C. Barklie, K. O'Donnell, A. Murtagh

Research output: Contribution to journalArticle

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Abstract

The location of Mn2+ diffused into single crystals of sodium beta -alumina has been studied. ESR measurements confirm that the only site in the spinel block occupied by these ions is the tetrahedral site closest to the conduction plane. The spin Hamiltonian parameters obtained for Mn2+ in this site are g/sub ///=2.0006(2), gperpendicular to=2.0019(2), A/sub ///=-8.20(3) mT, Aperpendicular to=-8.28(4)mT, D=-27.11(6) mT, (a-F)=-0.10(6) mT. The site allocation is the same as that of Antoine et al. but the spin Hamiltonian parameters differ slightly from the values they obtained. From the forbidden line splittings a value of P=14+or-5 mu T is found for the nuclear electric quadrupole interaction.

LanguageEnglish
Article number015
Pages4815-4820
Number of pages6
JournalJournal of Physics C: Solid State Physics
Volume10
Issue number23
DOIs
Publication statusPublished - 1 Dec 1977

Fingerprint

Hamiltonians
Aluminum Oxide
Paramagnetic resonance
Alumina
aluminum oxides
Sodium
sodium
spinel
quadrupoles
Single crystals
Ions
conduction
single crystals
ions
interactions
spinell

Keywords

  • sodium beta -alumina
  • ESR measurements
  • spinels

Cite this

Barklie, R. C. ; O'Donnell, K. ; Murtagh, A. / ESR of Mn2+ diffused into sodium β-alumina. In: Journal of Physics C: Solid State Physics. 1977 ; Vol. 10, No. 23. pp. 4815-4820.
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ESR of Mn2+ diffused into sodium β-alumina. / Barklie, R. C.; O'Donnell, K.; Murtagh, A.

In: Journal of Physics C: Solid State Physics, Vol. 10, No. 23, 015, 01.12.1977, p. 4815-4820.

Research output: Contribution to journalArticle

TY - JOUR

T1 - ESR of Mn2+ diffused into sodium β-alumina

AU - Barklie, R. C.

AU - O'Donnell, K.

AU - Murtagh, A.

PY - 1977/12/1

Y1 - 1977/12/1

N2 - The location of Mn2+ diffused into single crystals of sodium beta -alumina has been studied. ESR measurements confirm that the only site in the spinel block occupied by these ions is the tetrahedral site closest to the conduction plane. The spin Hamiltonian parameters obtained for Mn2+ in this site are g/sub ///=2.0006(2), gperpendicular to=2.0019(2), A/sub ///=-8.20(3) mT, Aperpendicular to=-8.28(4)mT, D=-27.11(6) mT, (a-F)=-0.10(6) mT. The site allocation is the same as that of Antoine et al. but the spin Hamiltonian parameters differ slightly from the values they obtained. From the forbidden line splittings a value of P=14+or-5 mu T is found for the nuclear electric quadrupole interaction.

AB - The location of Mn2+ diffused into single crystals of sodium beta -alumina has been studied. ESR measurements confirm that the only site in the spinel block occupied by these ions is the tetrahedral site closest to the conduction plane. The spin Hamiltonian parameters obtained for Mn2+ in this site are g/sub ///=2.0006(2), gperpendicular to=2.0019(2), A/sub ///=-8.20(3) mT, Aperpendicular to=-8.28(4)mT, D=-27.11(6) mT, (a-F)=-0.10(6) mT. The site allocation is the same as that of Antoine et al. but the spin Hamiltonian parameters differ slightly from the values they obtained. From the forbidden line splittings a value of P=14+or-5 mu T is found for the nuclear electric quadrupole interaction.

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KW - ESR measurements

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