Applied Magnetic Resonance

, Volume 50, Issue 4, pp 619–625 | Cite as

63,65Cu NQR Spectra and Spin–Lattice Relaxation in Thermoelectric CuAlO2

  • V. V. Ogloblichev
  • V. L. MatukhinEmail author
  • I. Yu. Arapova
  • C. V. Schmidt
  • R. R. Khusnutdinov
Original Paper


The 63,65Cu nuclear quadrupole resonance spectra and spin–lattice relaxation rate (1/T1) have been measured in the semiconductor compound CuAlO2. The value of the nuclei quadrupole interaction constant QCC = 56.24(6) MHz (T = 298 K) has been obtained. The broad maximum has been found in the temperature dependence of 1/T1 in the low-temperature region (below 276 K). This maximum can be associated with the presence of energy levels in the forbidden band. The activation energy has been estimated in CuAlO2 [EA = 45(2) meV], assuming the activation character of the mobility of holes.



The research was carried out within the state assignment of the Federal Agency for Scientific Organizations Russia (theme “Spin” no. AAAA-A18-118020290104-2) and partially supported by the project of the Ural Branch of the Russian Academy of Sciences no. 18-10-2-37.


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Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  • V. V. Ogloblichev
    • 1
  • V. L. Matukhin
    • 2
    Email author
  • I. Yu. Arapova
    • 1
  • C. V. Schmidt
    • 2
  • R. R. Khusnutdinov
    • 2
  1. 1.M.N. Miheev Institute of Metal Physics of Ural Branch of Russian Academy of SciencesYekaterinburgRussia
  2. 2.Kazan State Power Engineering UniversityKazanRussia

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