Chapter 9
Mössbauer Spectroscopy
of Magnetoelectric Perovskite Oxides
Paweł Stoch and Agata Stoch
Abstract Magnetoelectrics have been one of the most widely studied materials in
recent years. They are very interesting from the fundamental point of view due to
joining magnetic and electric orderings in the same phase, which tends to exclude
each other. On the other hand, the orderings are coupled each other what makes
them promising material to be applied in many electronic devices. This phenomenon is strongly related to the structure and its changes which can be tested by
Mössbauer spectroscopy. In the chapter, we look closer to this technique in
application to magnetoelectric perovskite solid solutions of BiFeO 3 –Pb(Fe 0.5 Nb 0.5 )
O 3 . The possibility of confirmation of random cation distribution, magnetic
ordering temperature, and iron magnetic properties will be presented and discussed.
The presented experimental hyperfine interaction parameters will be compared to
those theoretically calculated using ab initio methods.
9.1 Introduction
In this chapter, we would like to present the possibility of application of Mössbauer
spectrometry in structural and magnetic studies of magnetoelectric compounds.
Magnetoelectric compounds are the materials which try to join in the same phase
two mutually excluding orders like magnetic and electric. This is a very interesting
problem from the scientific point of view. Additionally, these two orders can be
coupled each other what leads to the observation of a magnetoelectric effect. This is
the effect of the occurrence of electrical polarization due to the external magnetic
field or vice versa. This gives the possibility of a wide application of the materials
in modern electronic devices, e.g., magnetic field sensors, four-state electronics,
P. Stoch (&)
Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30
Mickiewicza Av., 30-059 Krakow, Poland
e-mail: pstoch@agh.edu.pl
A. Stoch
Institute of Electron Technology Krakow Division, Zablocie 39, 30-701 Krakow, Poland
© Springer Nature Switzerland AG 2019
A. Koleżyński and M. Król (eds.), Molecular Spectroscopy—Experiment
and Theory, Challenges and Advances in Computational Chemistry
and Physics 26, https://doi.org/10.1007/978-3-030-01355-4_9
273
Mössbauer Spectroscopy
of Magnetoelectric Perovskite Oxides
Paweł Stoch and Agata Stoch
Abstract Magnetoelectrics have been one of the most widely studied materials in
recent years. They are very interesting from the fundamental point of view due to
joining magnetic and electric orderings in the same phase, which tends to exclude
each other. On the other hand, the orderings are coupled each other what makes
them promising material to be applied in many electronic devices. This phenomenon is strongly related to the structure and its changes which can be tested by
Mössbauer spectroscopy. In the chapter, we look closer to this technique in
application to magnetoelectric perovskite solid solutions of BiFeO 3 –Pb(Fe 0.5 Nb 0.5 )
O 3 . The possibility of confirmation of random cation distribution, magnetic
ordering temperature, and iron magnetic properties will be presented and discussed.
The presented experimental hyperfine interaction parameters will be compared to
those theoretically calculated using ab initio methods.
9.1 Introduction
In this chapter, we would like to present the possibility of application of Mössbauer
spectrometry in structural and magnetic studies of magnetoelectric compounds.
Magnetoelectric compounds are the materials which try to join in the same phase
two mutually excluding orders like magnetic and electric. This is a very interesting
problem from the scientific point of view. Additionally, these two orders can be
coupled each other what leads to the observation of a magnetoelectric effect. This is
the effect of the occurrence of electrical polarization due to the external magnetic
field or vice versa. This gives the possibility of a wide application of the materials
in modern electronic devices, e.g., magnetic field sensors, four-state electronics,
P. Stoch (&)
Faculty of Materials Science and Ceramics, AGH University of Science and Technology, 30
Mickiewicza Av., 30-059 Krakow, Poland
e-mail: pstoch@agh.edu.pl
A. Stoch
Institute of Electron Technology Krakow Division, Zablocie 39, 30-701 Krakow, Poland
© Springer Nature Switzerland AG 2019
A. Koleżyński and M. Król (eds.), Molecular Spectroscopy—Experiment
and Theory, Challenges and Advances in Computational Chemistry
and Physics 26, https://doi.org/10.1007/978-3-030-01355-4_9
273