TY - JOUR A1 - Siegert, Benjamin A1 - Donarini, Andrea A1 - Grifoni, Milena T1 - Effects of spin–orbit coupling and many-body correlations in STM transport through copper phthalocyanine JF - Beilstein Journal of Nanotechnology PY - 2015/// VL - 6 SP - 2452 EP - 2462 SN - 2190-4286 DO - 10.3762/bjnano.6.254 PB - Beilstein-Institut JA - Beilstein J. Nanotechnol. UR - https://doi.org/10.3762/bjnano.6.254 KW - anisotropy KW - copper phthalocyanine KW - magnetotransport KW - spin–orbit interaction KW - scanning tunneling microscopy (STM) N2 - The interplay of exchange correlations and spin–orbit interaction (SOI) on the many-body spectrum of a copper phtalocyanine (CuPc) molecule and their signatures in transport are investigated. We first derive a minimal model Hamiltonian in a basis of frontier orbitals that is able to reproduce experimentally observed singlet–triplet splittings. In a second step SOI effects are included perturbatively. Major consequences of the SOI are the splitting of former degenerate levels and a magnetic anisotropy, which can be captured by an effective low-energy spin Hamiltonian. We show that scanning tunneling microscopy-based magnetoconductance measurements can yield clear signatures of both these SOI-induced effects. ER -