Comprehensive investigation of the electronic parameters, vibrational characteristics, optical absorption behavior, charge transport mechanisms, and electrical properties of NaREGeO4 (RE = Gd, Sm) orthogermanate compounds

Key Points

• NaREGeO4 compounds demonstrate unique electronic parameters and charge transport mechanisms across different rare earth elements.
• Key findings include optical absorption behavior changes based on rare earth substitutions like Gd and Sm.
• Analysis of vibrational characteristics was performed using advanced spectroscopy techniques to understand the materials better.
• This investigation may enable new applications in electronic devices yet requires further exploration of long-term stability.