Zero Field Splitting of Heavy-Hole States in Quantum Dots.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 32479090.
- Also identified by DOI 10.1021/acs.nanolett.0c01466 and PMC identifier 7349564.
- No licence information is recorded for this record.
- Because redistribution is not established, this page shows the abstract only. Follow the links below for the full text.
Abstract
Using inelastic cotunneling spectroscopy we observe a zero field splitting within the spin triplet manifold of Ge hut wire quantum dots. The states with spin ±1 in the confinement direction are energetically favored by up to 55 μeV compared to the spin 0 triplet state because of the strong spin-orbit coupling. The reported effect should be observable in a broad class of strongly confined hole quantum-dot systems and might need to be considered when operating hole spin qubits.