Spectroscopic Signatures of Phonon Character in Molecular Electron Spin Relaxation
Nathanael · 2024
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Description
Kazmierczak and co-authors read the fingerprints of lattice motion in how molecular electron spins relax. Spin relaxation wipes the quantum states that molecular qubits and single-molecule magnets rely on. Theory has offered clashing stories, and lab handles on the process have been scarce.
Their 2024 study pulses electron paramagnetic resonance across heat and field direction to build a two-way map of relaxation rates. Powders show sharp shifts in the pattern as heat changes, marking apart regimes for each copper molecule. Single crystals reveal a flip in the symmetry of relaxation between regimes. Read through a relaxation tensor, the flip sorts broad lattice phonons from local molecular vibrations as the drivers in each regime.
Catalog record
| CREATOR | Nathanael |
|---|---|
| YEAR | 2024 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 39 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |