Magnetodielectric Effects from Spin Fluctuations in Isostructural Ferromagnetic and Antiferromagnetic Systems

Citeable URL: https://ir.library.oregonstate.edu/concern/articles/7m01bm355

Descriptions

Attribute Name	Values
Creator	Lawes, G. Ramirez, A. P. Varma, C. M. Subramanian, M. A.
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. Keywords: Spin fluctuations, Antiferromagnetic systems, Magnetodielectric effects, Ferromagnetic systems
Resource Type	Article
DOI	https://doi.org/10.1103/PhysRevLett.91.257208
Date Available	2011-09-20T21:02:35+00:00
Date Issued	2003-12-19
Citation	Lawes, G., Ramirez, A. P., Varma, C. M., & Subramanian, M. A. (2003, December 19). Magnetodielectric Effects from Spin Fluctuations in Isostructural Ferromagnetic and Antiferromagnetic Systems. Physical Review Letters, 91(25), 257208-1-257208-4. doi:10.1103/PhysRevLett.91.257208
Journal Title	Physical Review Letters
Journal Volume	91
Academic Affiliation	Chemistry
Urheberrechts-Erklärung	Copyright Not Evaluated
Publisher	American Institute of Physics
Peer Reviewed	Yes
Language	English [eng]
Replaces	http://hdl.handle.net/1957/23432