Electronic and vibrational signatures of ruthenium vacancies in Sr${}_2$RuO${}_4$ thin films

Gideok Kim, Y. Eren Suyolcu, J. Herrero-Martin +12

The synthesis of stoichiometric Sr${}_2$RuO${}_4$ thin films has been a challenge because of the high volatility of ruthenium oxide precursors, which gives rise to ruthenium vacancies…