Electrical conductivity of gadolinium–gallium garnet (GGG) crystals

E. Hartmann, L. Kovács, J. Paitz

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

The electrical conductivity of gadolinium gallium garnet single crystals pure and doped with Ca2+ and Mg2+ is measured from room temperature to 700 °C at different ambient atmospheres. Between 100 and 350 °C the activation energies are 1.1 eV for pure crystals and 0.88 eV for doped crystals. At higher temperatures the activatin energies are 1.53 and 0.5 eV, respectively. A p‐type conduction is attributed to O centres. Significant surface conductivity is observed at lower temperatures.

Original languageEnglish
Pages (from-to)401-405
Number of pages5
Journalphysica status solidi (a)
Volume86
Issue number1
DOIs
Publication statusPublished - Nov 16 1984

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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