Zero field splitting of heavy-hole states in quantum dots Katsaros, Georgios ; https://orcid.org/0000-0001-8342-202X Kukucka, Josip Vukušić, Lada ; https://orcid.org/0000-0003-2424-8636 Watzinger, Hannes Gao, Fei Wang, Ting ; https://orcid.org/0000-0002-4619-9575 Zhang, Jian-Jun Held, Karsten ddc:530 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. American Chemical Society 2020 info:eu-repo/semantics/article doc-type:article article http://purl.org/coar/resource_type/c_2df8fbb1 https://research-explorer.ista.ac.at/record/8203 https://research-explorer.ista.ac.at/download/8203/8204 Katsaros G, Kukucka J, Vukušić L, et al. Zero field splitting of heavy-hole states in quantum dots. <i>Nano Letters</i>. 2020;20(7):5201-5206. doi:<a href="https://doi.org/10.1021/acs.nanolett.0c01466">10.1021/acs.nanolett.0c01466</a> eng info:eu-repo/semantics/altIdentifier/doi/10.1021/acs.nanolett.0c01466 info:eu-repo/semantics/altIdentifier/issn/1530-6984 info:eu-repo/semantics/altIdentifier/e-issn/1530-6992 info:eu-repo/semantics/altIdentifier/wos/000548893200066 info:eu-repo/semantics/altIdentifier/pmid/32479090 info:eu-repo/semantics/openAccess