期刊
NANO LETTERS
卷 17, 期 1, 页码 186-193出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.nanolett.6b03780
关键词
Bistability; graphene; molecular electronics; molecular spintronics; nanoparticles; spin-crossover
类别
资金
- EU [H2020-MSCA-IF-658224]
- EU project Graphene Flagship [604391]
- Spanish MINECO [MAT2014-56143-R]
- Spanish MINECO (Unit of Excellence Maria de Maeztu) [MDM-2015-0538]
- Generalidad Valenciana (PROMETEO Program of Excellence)
- Generalidad Valenciana (ISIC Program of Excellence)
- ERC [267922]
- European Research Council (ERC) [267922] Funding Source: European Research Council (ERC)
Future multifunctional hybrid devices might combine switchable molecules and 2D material-based devices. Spin-crossover compounds are of particular interest in this context since they exhibit bistability and memory effects at room temperature while responding to numerous external stimuli. Atomically thin 2D materials such as graphene attract a lot of attention for their fascinating electrical, optical, and mechanical properties, but also for their reliability for room temperature operations. Here, we demonstrate that thermally induced spin-state switching of spin-crossover nanoparticle thin films can be monitored through the electrical transport properties of graphene lying underneath the films. Model calculations indicate that the charge carrier scattering mechanism in graphene is sensitive to the spin-state dependence of the relative dielectric constants of the spin-crossover nanoparticles. This graphene sensor approach can be applied to a wide class of (molecular) systems with tunable electronic polarizabilities.
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