Spin-phonon coupling in monoclinic bicro3
Document type :
Article dans une revue scientifique: Article original
DOI :
Permalink :
Title :
Spin-phonon coupling in monoclinic bicro3
Author(s) :
Araujo, B. S. [Auteur]
Arevalo Lopez, Angel [Auteur]
Santos, C. C. [Auteur]
Attfield, J. Paul [Auteur]
Paschoal, C. W. A. [Auteur]
Ayala, A. P. [Auteur]
Arevalo Lopez, Angel [Auteur]

Santos, C. C. [Auteur]
Attfield, J. Paul [Auteur]
Paschoal, C. W. A. [Auteur]
Ayala, A. P. [Auteur]
Journal title :
JOURNAL OF APPLIED PHYSICS
Abbreviated title :
J. Appl. Phys.
Volume number :
127
Publication date :
2020-03-21
ISSN :
0021-8979
HAL domain(s) :
Chimie/Chimie inorganique
English abstract : [en]
Monoclinic BiCrO3, synthesized at high pressure and high temperature, presents interesting properties with anomalies of magnetic origin observed around 110 and 80 K, which are associated, respectively, with the rise of a ...
Show more >Monoclinic BiCrO3, synthesized at high pressure and high temperature, presents interesting properties with anomalies of magnetic origin observed around 110 and 80 K, which are associated, respectively, with the rise of a G-type antiferromagnetic structure and the spin reorientation along one of the monoclinic axes. In this study, we report a strong spin–phonon coupling in monoclinic BiCrO3 observed by Raman spectroscopy. The renormalization of the phonon energy confirms the coupling with the magnetic orderings. Interestingly, some phonons exhibit this effect at the rising temperature of the G-type antiferromagnetic ordering, whereas others are sensitive to the second magnetic event. A renormalization model based on the mean-field theory, previously applied to other perovskite compounds, was used to analyze the spin–phonon coupling showing different behaviors associated with each magnetic phase.Show less >
Show more >Monoclinic BiCrO3, synthesized at high pressure and high temperature, presents interesting properties with anomalies of magnetic origin observed around 110 and 80 K, which are associated, respectively, with the rise of a G-type antiferromagnetic structure and the spin reorientation along one of the monoclinic axes. In this study, we report a strong spin–phonon coupling in monoclinic BiCrO3 observed by Raman spectroscopy. The renormalization of the phonon energy confirms the coupling with the magnetic orderings. Interestingly, some phonons exhibit this effect at the rising temperature of the G-type antiferromagnetic ordering, whereas others are sensitive to the second magnetic event. A renormalization model based on the mean-field theory, previously applied to other perovskite compounds, was used to analyze the spin–phonon coupling showing different behaviors associated with each magnetic phase.Show less >
Language :
Anglais
Audience :
Internationale
Popular science :
Non
Administrative institution(s) :
CNRS
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Centrale Lille
ENSCL
Univ. Artois
Université de Lille
Collections :
Research team(s) :
Matériaux inorganiques, structures, systèmes et propriétés (MISSP)
Submission date :
2022-03-02T07:13:03Z