Chapter 3
Spin-Polarized Plasmonics: Fresh View
on Magnetic Nanoparticles
Vladimir P. Drachev, Maria Pogodaeva, Sergey V. Levchenko,
and Ali E. Aliev
Abstract Here we discuss effect of spin-polarization on plasmon excitation in deep
ultra-violet spectral range for Co nanoparticles with a single-domain magnetic structure. Structural, magnetic, and optical characterizations of Co nanoparticles shine a
light on a mechanism of the magneto-plasmonic response.
3.1 Introduction
It is a common belief that the quality of the plasmon resonance of magnetic nanoparticles such as Co is quite low, which follows, in particular, from the experimental
data for permittivity of bulk cobalt by Johnson and Christy (J&C) [1]. Our recent
paper shows that for single-domain magnetic nanoparticles the usual approach, based
on bulk permittivity, does not work, while used to work perfectly for nonmagnetic
nanoparticles [2]. Indeed, our experiments prove that Co nanoparticles with a singledomain magnetic structure support a sharp plasmon resonance at about 280 nm with
the resonance quality comparable to gold nanoparticles. This type of plasmons is quite
different from known plasmons in noble metals. Note that the plasmon resonance
of Co is in the deep ultraviolet spectral range, which is the range for bio-molecule
resonances [3], as it is shown in Fig. 3.1, and, therefore, attractive for bio-medical
applications in addition to its magnetic nature.
Deep ultraviolet (DUV) Raman spectroscopy selectively visualizes nucleotide
bases, monomeric units of deoxyribonucleic acids (DNA) and aromatic amino acids,
monomeric units of proteins, in cells due to the resonant effect (spectra are presented
V. P. Drachev (B) · M. Pogodaeva · S. V. Levchenko
Skolkovo Institute of Science and Technology, Moscow, Russia
e-mail: v.drachev@skoltech.ru
V. P. Drachev
University of North Texas, Denton, TX, USA
A. E. Aliev
A. G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX, USA
© Springer Nature Switzerland AG 2021
E. Kamenetskii (ed.), Chirality, Magnetism and Magnetoelectricity,
Topics in Applied Physics 138,
https://doi.org/10.1007/978-3-030-62844-4_3
53
Spin-Polarized Plasmonics: Fresh View
on Magnetic Nanoparticles
Vladimir P. Drachev, Maria Pogodaeva, Sergey V. Levchenko,
and Ali E. Aliev
Abstract Here we discuss effect of spin-polarization on plasmon excitation in deep
ultra-violet spectral range for Co nanoparticles with a single-domain magnetic structure. Structural, magnetic, and optical characterizations of Co nanoparticles shine a
light on a mechanism of the magneto-plasmonic response.
3.1 Introduction
It is a common belief that the quality of the plasmon resonance of magnetic nanoparticles such as Co is quite low, which follows, in particular, from the experimental
data for permittivity of bulk cobalt by Johnson and Christy (J&C) [1]. Our recent
paper shows that for single-domain magnetic nanoparticles the usual approach, based
on bulk permittivity, does not work, while used to work perfectly for nonmagnetic
nanoparticles [2]. Indeed, our experiments prove that Co nanoparticles with a singledomain magnetic structure support a sharp plasmon resonance at about 280 nm with
the resonance quality comparable to gold nanoparticles. This type of plasmons is quite
different from known plasmons in noble metals. Note that the plasmon resonance
of Co is in the deep ultraviolet spectral range, which is the range for bio-molecule
resonances [3], as it is shown in Fig. 3.1, and, therefore, attractive for bio-medical
applications in addition to its magnetic nature.
Deep ultraviolet (DUV) Raman spectroscopy selectively visualizes nucleotide
bases, monomeric units of deoxyribonucleic acids (DNA) and aromatic amino acids,
monomeric units of proteins, in cells due to the resonant effect (spectra are presented
V. P. Drachev (B) · M. Pogodaeva · S. V. Levchenko
Skolkovo Institute of Science and Technology, Moscow, Russia
e-mail: v.drachev@skoltech.ru
V. P. Drachev
University of North Texas, Denton, TX, USA
A. E. Aliev
A. G. MacDiarmid NanoTech Institute, University of Texas at Dallas, Richardson, TX, USA
© Springer Nature Switzerland AG 2021
E. Kamenetskii (ed.), Chirality, Magnetism and Magnetoelectricity,
Topics in Applied Physics 138,
https://doi.org/10.1007/978-3-030-62844-4_3
53