Chapter 4
Core/Shell Bimagnetic Nanoparticles
Elin L. Winkler and Roberto D. Zysler
Abstract The advances in the physical and chemical fabrication methods have
enabled the possibility to produce artificial nanostructures whose properties are
different from that of their constituent materials. The presence of interfaces in
core/shell bimagnetic nanoparticles introduces additional interactions that could radically modify the static and dynamic magnetic behavior of the systems. The number
of parameters that governs the magnetic behavior grows enormously and the opportunity to manipulate, control, and understand the role played by each one of them,
opens a wide range of possibilities to design novel materials with suited properties.
The magnetic response changes depend on the magnetic ordering and anisotropy
of the phases, the core size and shell thickness, the quality of the interface, and
the strength of the interface exchange coupling. In this chapter, we discuss the new
properties found in core/shell bimagnetic nanoparticles and analyze the main characteristics that have to be taken into account to design a system with a particular
response.
4.1 Introduction
The magnetism has had a tremendous impact on our daily life, and it has transformed
our society, the way we see the world and the way we communicate each other. These
days, it exist a huge demand of new materials to be used in numerous applications, and
for developing new smaller devices and with improved performance. Large part of
E. L. Winkler (B) · R. D. Zysler (B)
Centro Atómico Bariloche and Instituto Balseiro Comisión Nacional de Energía Atómica
(CNEA), Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Universidad
Nacional de Cuyo (UNCUYO), Av. E. Bustillo 9500, R8402AGP San Carlos de Bariloche, Río
Negro, Argentina
e-mail: winkler@cab.cnea.gov.ar
R. D. Zysler
e-mail: zysler@cab.cnea.gov.ar
© Springer Nature Switzerland AG 2021
D. Peddis et al. (eds.), New Trends in Nanoparticle Magnetism,
Springer Series in Materials Science 308,
https://doi.org/10.1007/978-3-030-60473-8_4
87
Core/Shell Bimagnetic Nanoparticles
Elin L. Winkler and Roberto D. Zysler
Abstract The advances in the physical and chemical fabrication methods have
enabled the possibility to produce artificial nanostructures whose properties are
different from that of their constituent materials. The presence of interfaces in
core/shell bimagnetic nanoparticles introduces additional interactions that could radically modify the static and dynamic magnetic behavior of the systems. The number
of parameters that governs the magnetic behavior grows enormously and the opportunity to manipulate, control, and understand the role played by each one of them,
opens a wide range of possibilities to design novel materials with suited properties.
The magnetic response changes depend on the magnetic ordering and anisotropy
of the phases, the core size and shell thickness, the quality of the interface, and
the strength of the interface exchange coupling. In this chapter, we discuss the new
properties found in core/shell bimagnetic nanoparticles and analyze the main characteristics that have to be taken into account to design a system with a particular
response.
4.1 Introduction
The magnetism has had a tremendous impact on our daily life, and it has transformed
our society, the way we see the world and the way we communicate each other. These
days, it exist a huge demand of new materials to be used in numerous applications, and
for developing new smaller devices and with improved performance. Large part of
E. L. Winkler (B) · R. D. Zysler (B)
Centro Atómico Bariloche and Instituto Balseiro Comisión Nacional de Energía Atómica
(CNEA), Consejo Nacional de Investigaciones Científicas Y Técnicas (CONICET), Universidad
Nacional de Cuyo (UNCUYO), Av. E. Bustillo 9500, R8402AGP San Carlos de Bariloche, Río
Negro, Argentina
e-mail: winkler@cab.cnea.gov.ar
R. D. Zysler
e-mail: zysler@cab.cnea.gov.ar
© Springer Nature Switzerland AG 2021
D. Peddis et al. (eds.), New Trends in Nanoparticle Magnetism,
Springer Series in Materials Science 308,
https://doi.org/10.1007/978-3-030-60473-8_4
87