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Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3

Research output: Contribution to Journal/Magazine › Journal article › peer-review

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Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3. / O'Dell, L. A.; Savin, S. L. P.; Chadwick, A. V. et al.
In: Applied Magnetic Resonance, Vol. 32, No. 4, 01.12.2007, p. 527-546.

Research output: Contribution to Journal/Magazine › Journal article › peer-review

Harvard

O'Dell, LA, Savin, SLP, Chadwick, AV & Smith, ME 2007, 'Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3', Applied Magnetic Resonance, vol. 32, no. 4, pp. 527-546. https://doi.org/10.1007/s00723-007-0036-x

APA

O'Dell, L. A., Savin, S. L. P., Chadwick, A. V., & Smith, M. E. (2007). Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3. Applied Magnetic Resonance, 32(4), 527-546. https://doi.org/10.1007/s00723-007-0036-x

Vancouver

O'Dell LA, Savin SLP, Chadwick AV, Smith ME. Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3. Applied Magnetic Resonance. 2007 Dec 1;32(4):527-546. doi: 10.1007/s00723-007-0036-x

Author

O'Dell, L. A. ; Savin, S. L. P. ; Chadwick, A. V. et al. / Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3. In: Applied Magnetic Resonance. 2007 ; Vol. 32, No. 4. pp. 527-546.

Bibtex

@article{8896c961bf0d48db8a988a0d29a888ae,
title = "Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3",
abstract = "Ga-71 magic-angle spinning (MAS) nuclear magnetic resonance (NMR) has been used to characterize the structural evolution of nanocrystalline Ga2O3 samples prepared by sol-gel and ball-milling techniques. Si-29 and Al-27 MAS NMR have also been used to characterize silica and alumina Zener pinning phases. Ga-71 NMR parameters are reported for the alpha- and beta-Ga2O3 phases, and more tentatively for the delta-Ga2O3 phase. By simulating the octahedrally coordinated gallium NMR line of beta-Ga2O3 using Gaussian distributions in chi(Q), the extent of disorder in the Ga2O3 crystallites has been quantified. The ball-milled samples contain much more inherent disorder than the sol-gel samples in the nano-phase, which was observed from simulations of the Ga-71 MAS NMR spectra. The silica pinning phase produced highly crystalline and densely aggregated nanocrystalline Ga2O3, as well as the smallest nanocrystal sizes.",
author = "O'Dell, {L. A.} and Savin, {S. L. P.} and Chadwick, {A. V.} and Smith, {Mark E.}",
year = "2007",
month = dec,
day = "1",
doi = "10.1007/s00723-007-0036-x",
language = "English",
volume = "32",
pages = "527--546",
journal = "Applied Magnetic Resonance",
issn = "1613-7507",
publisher = "Springer Wien",
number = "4",

}

RIS

TY - JOUR

T1 - Multinuclear MAS NMR investigation of sol-gel and ball-milled nanocrystalline Ga2O3

AU - O'Dell, L. A.

AU - Savin, S. L. P.

AU - Chadwick, A. V.

AU - Smith, Mark E.

PY - 2007/12/1

Y1 - 2007/12/1

N2 - Ga-71 magic-angle spinning (MAS) nuclear magnetic resonance (NMR) has been used to characterize the structural evolution of nanocrystalline Ga2O3 samples prepared by sol-gel and ball-milling techniques. Si-29 and Al-27 MAS NMR have also been used to characterize silica and alumina Zener pinning phases. Ga-71 NMR parameters are reported for the alpha- and beta-Ga2O3 phases, and more tentatively for the delta-Ga2O3 phase. By simulating the octahedrally coordinated gallium NMR line of beta-Ga2O3 using Gaussian distributions in chi(Q), the extent of disorder in the Ga2O3 crystallites has been quantified. The ball-milled samples contain much more inherent disorder than the sol-gel samples in the nano-phase, which was observed from simulations of the Ga-71 MAS NMR spectra. The silica pinning phase produced highly crystalline and densely aggregated nanocrystalline Ga2O3, as well as the smallest nanocrystal sizes.

AB - Ga-71 magic-angle spinning (MAS) nuclear magnetic resonance (NMR) has been used to characterize the structural evolution of nanocrystalline Ga2O3 samples prepared by sol-gel and ball-milling techniques. Si-29 and Al-27 MAS NMR have also been used to characterize silica and alumina Zener pinning phases. Ga-71 NMR parameters are reported for the alpha- and beta-Ga2O3 phases, and more tentatively for the delta-Ga2O3 phase. By simulating the octahedrally coordinated gallium NMR line of beta-Ga2O3 using Gaussian distributions in chi(Q), the extent of disorder in the Ga2O3 crystallites has been quantified. The ball-milled samples contain much more inherent disorder than the sol-gel samples in the nano-phase, which was observed from simulations of the Ga-71 MAS NMR spectra. The silica pinning phase produced highly crystalline and densely aggregated nanocrystalline Ga2O3, as well as the smallest nanocrystal sizes.

U2 - 10.1007/s00723-007-0036-x

DO - 10.1007/s00723-007-0036-x

M3 - Journal article

VL - 32

SP - 527

EP - 546

JO - Applied Magnetic Resonance

JF - Applied Magnetic Resonance

SN - 1613-7507

IS - 4

ER -