Magnetodielectric Effects from Spin Fluctuations in Isostructural Ferromagnetic and Antiferromagnetic Systems
G. Lawes, A. P. Ramirez, C. M. Varma, M. A. Subramanian
Abstract
We report on the effects of spin fluctuations, magnetic ordering, and external magnetic field on the dielectric constant of the ferromagnet SeCuO3, and the antiferromagnet TeCuO3. A model based on the coupling between uniform polarization and the q-dependent spin-spin correlation function is presented to explain the different behaviors for these isostructural compounds. The large magnetocapacitance near the transition temperature in the ferromagnet SeCuO3 suggests routes to enhancing the magnetodielectric response for practical applications.
Create a lesson
Related papers
From picometre displacements to a three-dimensional lattice gas of polar skyrmions
Joohee Bang, Nives Strkalj, Hugo Aramberri et al.
Coherent and Incoherent Time-Resolved Diffuse Scattering Intensity from First Principles
Matteo Furci, Giovanni Marini, Stefano Mocatti et al.
VoroTypes: automated enumeration of Voronoi cell topologies for structural identification of complex crystals in atomistic simulations
Emanuel A. Lazar, Chris H. Rycroft
Large in-plane optical anisotropy in epitaxial CrN(113) films
Duc V. Dinh, Frank Peiris, Oliver Brandt
Coexistence of Altermagnetic and Compensated Ferrimagnetic Motifs in a Noncollinear Multiferroic
Vikrant Chaudhary, Fu Li, Hui Liu et al.
Low magnon damping of a EuSe film down to millikelvin temperatures
Rostyslav O. Serha, Jan Hofer, Khrystyna O. Levchenko et al.