TY - JOUR
T1 - Attenuation of surface-enhanced Raman scattering of magnetic-plasmonic FePt@Ag core-shell nanoparticles due to an external magnetic field
AU - Trang, Nguyen T.T.
AU - Thuy, Trinh T.
AU - Mott, Derrick M.
AU - Koyano, Mikio
AU - Maenosono, Shinya
PY - 2013/6/14
Y1 - 2013/6/14
N2 - The surface-enhanced Raman scattering (SERS) activities of Ag and FePt@Ag nanoparticle probes were examined using thiophenol as a Raman reporter molecule in the absence and presence of a magnetic field. Under external magnetic fields of different field strength, the SERS activities of both types of nanoparticles (NPs) were weakened as a function of magnetic field strength. The attenuation degree of SERS activity by the magnetic field in the case of FePt@Ag NPs is found to be two times higher than for Ag NPs, because the superparamagnetic FePt cores enhance the local magnetic field at the area of the Ag shells.
AB - The surface-enhanced Raman scattering (SERS) activities of Ag and FePt@Ag nanoparticle probes were examined using thiophenol as a Raman reporter molecule in the absence and presence of a magnetic field. Under external magnetic fields of different field strength, the SERS activities of both types of nanoparticles (NPs) were weakened as a function of magnetic field strength. The attenuation degree of SERS activity by the magnetic field in the case of FePt@Ag NPs is found to be two times higher than for Ag NPs, because the superparamagnetic FePt cores enhance the local magnetic field at the area of the Ag shells.
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U2 - 10.1016/j.cplett.2013.04.064
DO - 10.1016/j.cplett.2013.04.064
M3 - Article
AN - SCOPUS:84878553140
SN - 0009-2614
VL - 574
SP - 94
EP - 99
JO - Chemical Physics Letters
JF - Chemical Physics Letters
ER -