D Tsur et al 1974 J. Phys. C: Solid State Phys. 7 1257 doi:10.1088/0022-3719/7/7/018
Positron annihilation in a single TiO2 crystal
D Tsur, M Blau and M Weger
Show affiliationsPositron annihilation in a single crystal of rutile (TiO2) is investigated by analysing the energies of the emitted gamma -rays. The anisotropy in the energy distribution for emission parallel and perpendicular to the crystal c axis is measured and found to be 2.3+or-0.3% for k=0, and it vanishes at k=3.7+or-0.3 mrad, where k is the resultant positron-electron momentum. The anisotropy is attributed to covalency of the oxygen 2p shell.
- PACS
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78.70.Bj Positron annihilation
- Subjects
- Dates
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Issue 7 (7 April 1974)
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Positron annihilation in a single TiO2 crystal
D Tsur et al 1974 J. Phys. C: Solid State Phys. 7 1257
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by positron annihilation spectroscopy