期刊
PHYSICAL REVIEW LETTERS
卷 106, 期 22, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.227205
关键词
-
资金
- FP7-ICT FET Open MolSpinQIP project [211284]
- EPSRC (U.K.)
- MIUR-PRIN [2008PARRTS, 2008NX9Y7]
We report an in-depth study on how spin information propagates at supramolecular scale through a family of heteroaromatic linkers. By density-functional theory calculations, we rationalize the behavior of a series of Cr(7)Ni dimers for which we are able to systematically change the aromatic linker thus tuning the strength of the magnetic interaction, as experimentally shown by low temperature micro-SQUID and specific heat measurements. We also predict a cos(2) dependence of the magnetic coupling on the twisting angle between the aromatic cycles in bicyclic linkers, a mechanism parallel to charge transport on similar systems
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