Abstract
The ground state structural, electronic, and magnetic properties of multiferroic TbMn2O5 are investigated via first-principles calculations. We show that the ferroelectricity in TbMn2O5 is driven by the noncentrosymmetric magnetic ordering, without invoking the spin-orbit coupling and noncollinear spins. The intrinsic electric polarization in this compound is calculated to be 1187nCcm-2, an order of magnitude larger than previously thought.
| Original language | English |
|---|---|
| Article number | 177202 |
| Journal | Physical Review Letters |
| Volume | 99 |
| Issue number | 17 |
| Online published | 22 Oct 2007 |
| DOIs | |
| Publication status | Published - 26 Oct 2007 |
| Externally published | Yes |
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