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Nanomagnetic shield...
Nanomagnetic shielding : High-resolution NMR in carbon allotropes
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- Kim, Y (författare)
- Department of Materials Science and Engineering, University of Pennsylvania, Philadelphia, Pennsylvania
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- Abou-Hamad, Edy (författare)
- CNRS Université Montpellier 2, France,nanoMRI Group, Laboratoire des Colloïdes, Verres et Nanomatériaux
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- Rubio, Angelo (författare)
- European Theoretical Spectroscopy Facility (ETSF), Universidad del País Vasco UPV/EHU, Spain,Dpto. Física de Materiales and Centro Mixto CSIC-UPV/EHU,
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- Wågberg, Thomas, 1971- (författare)
- Umeå universitet,Institutionen för fysik,Nanofysik och Material
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- Talyzin, Aleksandr V., 1969- (författare)
- Umeå universitet,Institutionen för fysik
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- Boesch, D (författare)
- Department of Physics, University of California, Berkeley, California 94720 USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, USA
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- Aloni, S (författare)
- Department of Physics, University of California, Berkeley, California 94720 USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, USA
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- Zettl, Alex (författare)
- Department of Physics, University of California, Berkeley, California 94720 USA and Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, USA
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- Luzzi, David E. (författare)
- Department of Materials Science and Engineering, University of Pennsylvania, USA
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- Goze-Bac, Christophe (författare)
- CNRS Université Montpellier 2, France,nanoMRI Group, Laboratoire des Colloïdes, Verres et Nanomatériaux
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(creator_code:org_t)
- American Institute of Physics, 2010
- 2010
- Engelska.
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Ingår i: Journal of Chemical Physics. - : American Institute of Physics. - 0021-9606 .- 1089-7690. ; 132, s. 021102-
- Relaterad länk:
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http://link.aip.org/...
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https://aip.scitatio...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Theunderstanding and control of the magnetic properties of carbon-based materialsis of fundamental relevance in applications in nano- and biosciences.Ring currents do play a basic role in those systems.In particular the inner cavities of nanotubes offer an idealenvironment to investigate the magnetism of synthetic materials at thenanoscale. Here, by means of 13C high resolution NMR ofencapsulated molecules in peapod hybrid materials, we report the largestdiamagnetic shifts (down to −68.3 ppm) ever observed in carbonallotropes, which is connected to the enhancement of the aromaticityof the nanotube envelope upon doping. This diamagnetic shift canbe externally controlled by in situ modifications such as dopingor electrostatic charging. Moreover, defects such as C-vacancies, pentagons, andchemical functionalization of the outer nanotube quench this diamagnetic effectand restore NMR signatures to slightly paramagnetic shifts compared tononencapsulated molecules. The magnetic interactions reported here are robust phenomenaindependent of temperature and proportional to the applied magnetic field.The magnitude, tunability, and stability of the magnetic effects makethe peapod nanomaterials potentially valuable for nanomagnetic shielding in nanoelectronicsand nanobiomedical engineering
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Peapods
- carbon nanotubes
- Nuclear magnetic resonance spectroscopy
- magnetism
- Condensed matter physics
- Kondenserade materiens fysik
- fysik
- Physics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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Till lärosätets databas
- Av författaren/redakt...
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Kim, Y
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Abou-Hamad, Edy
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Rubio, Angelo
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Wågberg, Thomas, ...
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Talyzin, Aleksan ...
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Boesch, D
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visa fler...
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Aloni, S
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Zettl, Alex
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Luzzi, David E.
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Goze-Bac, Christ ...
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Den kondenserade ...
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Journal of Chemi ...
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Umeå universitet