Ferroelectricity Driven by the Noncentrosymmetric Magnetic Ordering in Multiferroic TbMn₂O₅: A First-Principles Study

Abstract

References (22)

Citing Articles

Download: PDF (412 kB) or Buy this Article (US$25) (Use Article Pack)

Chenjie Wang, Guang-Can Guo, and Lixin He
Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, 230026, People's Republic of China

Received 18 April 2007; published 22 October 2007

Theground state structural, electronic, and magnetic properties of multiferroic TbMn₂O₅are investigated via first-principles calculations. We show that the ferroelectricityin TbMn₂O₅ is driven by the noncentrosymmetric magnetic ordering, withoutinvoking the spin-orbit coupling and noncollinear spins. The intrinsic electricpolarization in this compound is calculated to be 1187 nC cm^-2, anorder of magnitude larger than previously thought.

URL:	http://link.aps.org/doi/10.1103/PhysRevLett.99.177202
DOI:	10.1103/PhysRevLett.99.177202
PACS:	75.25.+z; 63.20.-e; 71.15.-m; 77.80.-e 75.25.+z Spin arrangements in magnetically ordered materials including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc 63.20.-e Phonons in crystal lattices 71.15.-m Methods of electronic structure calculations (condensed matter) 77.80.-e Ferroelectricity and antiferroelectricity YEAR: 2007

REFERENCES (22)

View in Separate Window/Tab

For access to fully linked references, you need to log in. For access to fully linked references, you need to Log in.

T. Goto, T. Kimura, G. Lawes, A. P. Ramirez, and Y. Tokura, Phys. Rev. Lett. 92, 257201 (2004).
L. C. Chapon, G. R. Blake, M. J. Gutmann, S. Park, N. Hur, P. G. Radaelli, and S. W. Cheong, Phys. Rev. Lett. 93, 177402 (2004).
G. R. Blake, L. C. Chapon, P. G. Radaelli, S. Park, N. Hur, S.-W. Cheong, and J. Rodriguez-Carvajal, Phys. Rev. B 71, 214402 (2005).
R. Valdes Aguilar, A. B. Sushkov, S. Park, S.-W. Cheong, and H. D. Drew, Phys. Rev. B 74, 184404 (2006).
H. Katsura, N. Nagaosa, and A. V. Balatsky, Phys. Rev. Lett. 95, 057205 (2005).
I. A. Sergienko and E. Dagotto, Phys. Rev. B 73, 094434 (2006).
J. P. Perdew, K. Burke, and M. Ernzerhof, Phys. Rev. Lett. 77, 3865 (1996).
G. Kresse and J. Furthmuller, Phys. Rev. B 54, 11 169 (1996).
P. E. Blochl, Phys. Rev. B 50, 17 953 (1994).
L. He, J. B. Neaton, M. H. Cohen, D. Vanderbilt, and C. C. Homes, Phys. Rev. B 65, 214112 (2002).
B. Mihailova, M. M. Gospodinov, B. Guttler, F. Yen, A. P. Litvinchuk, and M. N. Iliev, Phys. Rev. B 71, 172301 (2005).
R. D. King-Smith and D. Vanderbilt, Phys. Rev. B 47, 1651 (1993).