Abstract
We have studied the influence of isotopic disorder on the local deformations in Ge single crystals from both experimental and calculation points of view. The nuclear magnetic resonance (NMR) spectra of73Ge nuclei (the nuclear spin equals 9/2) in perfect single crystals of germanium with different isotopic content were measured at temperatures 80, 300 and 450 K. Abnormal broadening of the spectrum was found to occur when the magnetic field was aligned along the [111] axis of a crystal. The observed specific angular dependence of the quadrupole broadening was attributed to isotopic disorder among atoms of germanium sited around the73Ge NMR probe. Local lattice deformations in germanium crystal lattice due to isotopic impurity atoms were calculated in the framework of the adiabatic bond charge model. The results obtained were applied to study random noncubic crystal field interactions with the nuclear quadrupole moments and corresponding effects in NMR spectra. Simulated second and fourth moments of resonance frequency distributions caused by the magnetic dipole-dipole and electric quadrupole interactions are used to analyze the lineshapes, theoretical predictions agree qualitatively with the experimental data.
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References
Cohen M.H., Reif F.: Solid State Physics (Seitz F., Turnbull D., eds.), vol. 5, p. 321. New York: Academic Press 1957.
Abragam A.: The Principles of Nuclear Magnetism. Oxford: Clarendon Press 1961.
Omini M., Sparavigna A.: Physica B233, 230 (1997)
Ozhogin V.I., Inyushkin A.V., Taldenkov A.N., Tikhomirov A.V., Popov G.E., Haller E., Itoh K.: Sov. Phys. JETP Lett.63, 490 (1996)
Weber W.: Phys. Rev. B15, 4789 (1977)
Eryigit R., Herman I.P.: Phys. Rev. B53, 7775 (1996)
Malkin B.Z., Saikin S.K., Ozhogin V.I.: Appl. Magn. Reson.14, 513 (1998)
Aminov L.K., Malkin B.Z., Teplov M.A.: Handbook on the Physics and Chemistry of the Rare-Earths (Gschneidner K.A., LeRoy Eyring, eds.), vol. 22, pp. 295–506. Amsterdam: North-Holland 1996.
Ivanov M.A., Mitrofanov V.Ya., Falkovskaya L.D., Fishman A.Ya.: J. Magn. Magn. Met.36, 26 (1983)
Timofeev Yu.A., Vinogradov B.V., Stishov S.M.: Sov. Phys. JETP Lett.69, 211 (1999).
Itoh K.: Doctoral Thesis, University of California at Berkeley, Berkeley, CA, USA 1994.
Boden N., Levine Y.K.: J. Magn. Reson.30, 327 (1978)
Al’tshuler S.A., Kozirev B.M.: Electron Paramagnetic Resonance. Moscow: Nauka 1972.
Pavone P., Baroni S.: Solid State Commun.90, 295 (1994)
Noya J.C., Herrero C.P., Ramirez R.: Phys. Rev. B56, 237 (1997)
Buschert R.C., Merlini A.E., Pace S., Rodriguez S., Grimsditch M.H.: Phys. Rev. B38, 5219 (1988)
Kazimirov A., Zegenhagen J, Cardona M.: Science282, 930 (1998)
Timmesfeld K.H., Elliott R.J.: Phys. Status Solidi42, 859 (1970)
Agladze N.I., Popova M.N., Koreiba M.A., Malkin B.Z., Pekurovskii V.R.: JETP77, 1021 (1993)
Malkin B.Z., Saikin S.K.: Tenth Feofilov Symposium on Spectroscopy of Crystals Activated by Rare-Earth and Transitional-Metal Ions (Ryskin A.I., Masterov V.F., eds.), Proc. SPIE2706, 193 (1996)
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Verkhovskii, S.V., Yakubovskii, A.Y., Trokiner, A. et al. 73Ge NMR spectra in germanium single crystals with different isotopic composition. Appl. Magn. Reson. 17, 557–576 (1999). https://doi.org/10.1007/BF03162086
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DOI: https://doi.org/10.1007/BF03162086