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Effect of Spin–Orbit Coupling on Phonon-Mediated Magnetic Relaxation in a Series of Zero-Valent Vanadium, Niobium, and Tantalum Isocyanide Complexes
- Source :
- Inorganic Chemistry. 60:18553-18560
- Publication Year :
- 2021
- Publisher :
- American Chemical Society (ACS), 2021.
-
Abstract
- Spin-vibronic coupling leads to spin relaxation in paramagnetic molecules, and an understanding of factors that contribute to this phenomenon is essential for designing next-generation spintronics technology, including single-molecule magnets and spin-based qubits, wherein long-lifetime magnetic ground states are desired. We report spectroscopic and magnetic characterization of the isoelectronic and isostructural series of homoleptic zerovalent transition metal triad M(CNDipp)6 (M = V, Nb, Ta; CNDipp = 2,6-diisopropylphenyl isocyanide) and show experimentally the significant increase in spin relaxation rate upon going from V to Nb to Ta. Correlated electronic calculations and first principle spin-phonon computations support the role of spin-orbit coupling in modulating spin-phonon relaxation. Our results provide experimental evidence that increasing magnetic anisotropy through spin-orbit coupling interactions leads to increased spin-vibronic relaxation, which is detrimental to long spin lifetime in paramagnetic molecules.
- Subjects :
- Condensed matter physics
Spintronics
Chemistry
Isocyanide
Relaxation (NMR)
Spin–orbit interaction
Inorganic Chemistry
Paramagnetism
chemistry.chemical_compound
Magnetic anisotropy
Transition metal
Condensed Matter::Strongly Correlated Electrons
Physical and Theoretical Chemistry
Spin (physics)
Subjects
Details
- ISSN :
- 1520510X and 00201669
- Volume :
- 60
- Database :
- OpenAIRE
- Journal :
- Inorganic Chemistry
- Accession number :
- edsair.doi.dedup.....4d6529273d43e2d771b9176e336c8f0a