A large spin-orbit coupling is a way to control strong magnetodielectric (MD) coupling in higher d-orbital materials. However, reports are rare on such compounds due to often leaky conductive behavior. Here, we demonstrate MD coupling in a Ru-based 6H-perovskite system, Ba3NdRu2O9. The rare-earth ion in a 6H-perovskite makes the system insulating enough to carry out MD investigation. The compound is ferromagnetically ordered below 24 K (TC), followed by another magnetic feature at T ∼17 K (T2). The dielectric constant clearly traces the magnetic ordering, manifesting a peak at the onset of TC, which is suppressed by the application of an external magnetic field (H). The results indicate the presence of MD coupling in this compound, which is further confirmed by the H-dependence of the dielectric constant. Interestingly, a cross-over of the sign of MD coupling is observed at T ∼ T2. We conclude that two different mechanisms control the MD coupling, which yields positive and negative coupling, respectively. Both mechanisms are competing as a function of temperature and magnetic field. This brings us a step closer to design and control the magnetodielectric effect in 6H-perovskites containing higher d-orbital elements.
Skip Nav Destination
Article navigation
23 July 2018
Research Article|
July 23 2018
Magnetodielectric coupling in a Ru-based 6H-perovskite, Ba3NdRu2O9
Tathamay Basu
;
Tathamay Basu
a)
1
Laboratoire CRISMAT, UMR 6508 du CNRS et de l'Ensicaen
, 6 Bd Marechal Juin, 14050 Caen, France
2
Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg
, Universitätsstr. 2, D-86135 Augsburg, Germany
Search for other works by this author on:
Alain Pautrat;
Alain Pautrat
1
Laboratoire CRISMAT, UMR 6508 du CNRS et de l'Ensicaen
, 6 Bd Marechal Juin, 14050 Caen, France
Search for other works by this author on:
Vincent Hardy;
Vincent Hardy
1
Laboratoire CRISMAT, UMR 6508 du CNRS et de l'Ensicaen
, 6 Bd Marechal Juin, 14050 Caen, France
Search for other works by this author on:
Alois Loidl
;
Alois Loidl
2
Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg
, Universitätsstr. 2, D-86135 Augsburg, Germany
Search for other works by this author on:
Stephan Krohns
Stephan Krohns
2
Experimental Physics V, Center for Electronic Correlations and Magnetism, University of Augsburg
, Universitätsstr. 2, D-86135 Augsburg, Germany
Search for other works by this author on:
Appl. Phys. Lett. 113, 042902 (2018)
Article history
Received:
April 11 2018
Accepted:
July 10 2018
Citation
Tathamay Basu, Alain Pautrat, Vincent Hardy, Alois Loidl, Stephan Krohns; Magnetodielectric coupling in a Ru-based 6H-perovskite, Ba3NdRu2O9. Appl. Phys. Lett. 23 July 2018; 113 (4): 042902. https://doi.org/10.1063/1.5034449
Download citation file:
Sign in
Don't already have an account? Register
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Pay-Per-View Access
$40.00
Citing articles via
Topological and chiral matter—Physics and applications
Maia G. Vergniory, Takeshi Kondo, et al.
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Feedback cooling of an insulating high-Q diamagnetically levitated plate
S. Tian, K. Jadeja, et al.
Related Content
Impurity effect on magnetic and thermal properties of S = 3/2 spin gap system Ba3Ca(Ru1−xNbx)2O9
AIP Advances (February 2024)
Resistive magnetodielectric property of polycrystalline γ - Fe 2 O 3
Appl. Phys. Lett. (September 2007)
Probing Griffiths phase like behavior and exchange bias phenomena in 6H Ba3Co0.5Mn0.5Ru2O9 by B-site doping
J. Appl. Phys. (July 2023)
Large magnetodielectric response in spinel Ni0.5Co0.5Cr2O4
AIP Conference Proceedings (April 2018)
aMagnetic control of spin reorientation and magnetodielectric effect below the spin compensation temperature in Tm Fe O 3
Appl. Phys. Lett. (January 2007)