Matrix material structure dependence of the embedded electron spin decoherence
Jiangyang You1, Dejana Carić1, Boris Rakvin1
1Division of Physical Chemistry, Ruđer Bošković Institute, Bijenička 54, 10000 Zagreb, Croatia.
The Journal of Chemical Physics
|May 3, 2019
Summary
We used electron spin decoherence to study material structure in organic solids. Our findings correlate decoherence to the proton environment, offering new insights into nuclear spin dynamics.
Area of Science:
- Quantum mechanics
- Materials science
- Solid-state physics
Background:
- Electron spin decoherence is sensitive to the surrounding nuclear spin environment.
- Understanding matrix material structure is crucial for designing advanced organic solids.
Purpose of the Study:
- To investigate the relationship between matrix material structure and embedded electron spin decoherence.
- To apply the nuclear spin bath model and cluster correlation expansion method for structural analysis.
Main Methods:
- Calculated electron spin decoherence profiles using the Carr-Purcell-Meiboom-Gill dynamical decoupling pulse series.
- Employed the nuclear spin bath model and cluster correlation expansion method.
- Studied a model system of malonic acid within organic solids.
Main Results:
- Decoherence profiles strongly correlated with variations in the adjacent proton environment.
- Observed distinct decoherence behavior in proton spin baths compared to other nuclei, evidenced by violated even-odd pulse parity.
- Theoretical predictions for polycrystalline and single-crystal orientations, as well as disorder effects, were experimentally validated.
Conclusions:
- Embedded electron spin decoherence is a viable tool for probing matrix material structure in organic solids.
- The nuclear spin environment, particularly protons, significantly influences electron spin decoherence.
- The applied theoretical methods accurately predict experimental decoherence behaviors.
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