Detecting gas molecules via atomic magnetization
- Title
- Detecting gas molecules via atomic magnetization
- Author
- 정용재
- Keywords
- GENERALIZED GRADIENT APPROXIMATION; DOPED GRAPHENE; ANISOTROPY; ADSORPTION; SURFACES; EXCHANGE; SENSOR
- Issue Date
- 2014-09
- Publisher
- ROYAL SOC CHEMISTRY, THOMAS GRAHAM HOUSE, SCIENCE PARK, MILTON RD, CAMBRIDGE CB4 0WF, CAMBS, ENGLAND
- Citation
- DALTON TRANSACTIONS, 2014, 43(34), P.13070-13075
- Abstract
- Adsorptions of gas molecules were found to alter the directions and magnitudes of magnetic moments of transition metal (Co, Fe) atoms adsorbed on graphene. Using first-principles calculations, we demonstrated that magnetism of surface atoms can be used to identify the kind of existing gas molecules via spin-reorientation and/or demagnetizations caused by the reconfigurations of 3d electron energy levels of Co and Fe. We suggest for the first time that magnetic properties of transition metal-embedded nanostructures can be used in highly selective gas-sensing applications.
- URI
- http://pubs.rsc.org/-/content/articlehtml/2014/dt/c4dt01401dhttp://hdl.handle.net/20.500.11754/49005
- ISSN
- 1477-9226; 1477-9234
- DOI
- 10.1039/c4dt01401d
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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