Abstract
GdO with unusual valence of Gd2+ (4f75d1) has been known as the only gas phase so far. In this study, we report on the growth of solid phase rock salt structure GdO epitaxial thin films. The GdO thin film was an n-type semiconductor with the bandgap of 0.1 eV. The ferromagnetic Curie temperature (TC) was as high as 276 K, which was much higher than that of archetypal ferromagnetic rare earth monoxide EuO (TC = 69 K). TC increased slightly with electron doping similar to non-stoichiometric EuO1-δ, while decreased significantly with La doping probably caused by the magnetic dilution effect due to substitution of Gd with divalent La.
Original language | English |
---|---|
Article number | 052402 |
Journal | Applied Physics Letters |
Volume | 117 |
Issue number | 5 |
DOIs | |
Publication status | Published - 2020 Aug 3 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)