Speaker
Description
LaAlO$_3$ (LAO) is, alongside SrTiO$_3$ (STO), and sapphire one of the most commonly used substrates for complex metal-oxide thin film growth. LAO plays a crucial role in inducing interesting physical properties, such as in LaNiO$_3$/LAO superlattices and interface superconductivity at STO/LAO interfaces. While $\mu$SR studies have characterized STO, sapphire, and LSAT regarding Muonium formation - a critical factor when quantifying thin film LE-$\mu$SR results - surprisingly little is known about Muonium formation in LAO. In this work, we present comprehensive bulk and low-energy $\mu$SR measurements revealing the energy and temperature dependence of different muon charge states in LAO, effectively addressing this significant knowledge gap in the characterization of this important substrate material.
| andreas.suter@psi.ch | |
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