Magnetic-field control of the electric polarization in BiMnO3

Physical Review B - Condensed Matter and Materials Physics

Volumn 82, Issue 9, 2010, Pages

  Solovyev, I V ^a   Pchelkina, Z V ^b  

^a NATIONAL INSTITUTE FOR MATERIALS SCIENCE   (Japan)

^b INSTITUTE OF METAL PHYSICS   (Russian Federation)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 77957585640     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.82.094425     Document Type: Article

References (19)

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13. The interatomic magnetic interactions are defined as one half of the Hartree-Fock energy difference between antiferromagnetic and ferromagnetic configurations in each bond.
14. We use the following setting for the monoclinic translations: R 1, 2 = 1 2 (sin β a, ∓ b, cos β a) and R 3 = (0, 0, c). The positions of four Mn atoms in the unit cell are specified by the vectors: τ 1 = y Mn (R 1 - R 2) + 1 4 R 3, τ 2 = - τ 1, τ 3 = 1 2 R 1, and τ 4 = 1 2 (R 2 + R 3). The experimental structure parameters were taken from Ref.. More detailed information about the settings, which were used for the crystal structure of BiMnO 3, can be found in Refs..
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18. The interaction term with the magnetic field is given by H ̂ B = - μ B B · (2 s ̂ + l ̂), where s ̂ and l ̂ are the operators of spin and orbital angular momentum, respectively.
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