Spectroscopic Signatures of Phonon Character in Molecular Electron Spin Relaxation.

ABSTRACT: Spin-lattice relaxation constitutes a key challenge for the development of quantum technologies, as it destroys superpositions in molecular quantum bits (qubits) and magnetic memory in single molecule magnets (SMMs). Gaining mechanistic insight into the spin relaxation process has proven challenging owing to a lack of spectroscopic observables and contradictions among theoretical models. Here, we use pulse electron paramagnetic resonance (EPR) to profile changes in spin relaxation rates (T ₁) as a function of both temperature and magnetic field orientation, forming a two-dimensional data matrix. For randomly oriented powder samples, spin relaxation anisotropy changes dramatically with temperature, delineating multiple regimes of relaxation processes for each Cu(II) molecu

SUBMITTER: Kazmierczak NP 

PROVIDER: S-EPMC11672536 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature