Magnetic inversion symmetry breaking and ferroelectricity in TbMnO3.
By M. Kenzelmann, A. B. Harris, S. Jonas, C. Broholm, J. Schefer, S. Kim, Chenglin Zhang, S. Cheong, O. Vajk, J. Lynn. Physical Review Letters, 2005
599 citations recorded by the source corpus.
TbMnO3 is an orthorhombic insulator where incommensurate spin order for temperature T(N)<41 K is accompanied by ferroelectric order for T<28 K. To understand this, we establish the magnetic structure above and below the ferroelectric transition using neutron diffraction. In the paraelectric phase, the spin structure is incommensurate and longitudinally modulated. In the ferroelectric phase, however, there is a transverse incommensurate spiral. We show that the spiral breaks spatial inversion symmetry and can account for magnetoelectricity in TbMnO3.
Subfields: Electronic, Optical and Magnetic Materials, Materials Chemistry
View Paper: https://www.semanticscholar.org/paper/a82d67dd5fc02f0fd1402d7b1e3b89a47da7dfa8
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Citations in the corpus
- Introduction to magnetoelectric coupling and multiferroic films (2011, methodology): “The multiferroic properties of TbMnO3 can be well understood using a Landau model [98, 99] with the spin-current model”
- Possible evidence for electromagnons in multiferroic manganites (2006, methodology): “Recent neutron scattering experiments revealed [14] that the lock-in transition in”
- Antiferromagnetic opto-spintronics (2017, background): “ading to a reduction of moments projection onto plane perpendicular to the probe light propagation direction. e, MO signal measured for t = 60 ps (points) as a function of the sample tilt around the [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] substrate direction at 300 K. Solid lines depict the functioncos2 de”
- Some symmetry aspects of ferroics and single phase multiferroics* (2008, background): “This occurs in Ni3V2O8 (Lawes et al 2005) and TbMnO3 (Kenzelmann et al 2005) and has been reviewed by Harris (2006) and Harris and Lawes (2006).”
- Multiferroic materials and magnetoelectric physics: symmetry, entanglement, excitation, and topology (2015, unknown): “4(g)), as revealed by neutron studies [34].”
- Dynamical Multiferroicity (2016, background): “Specifically in TbMnO3 with a magnetic field applied along b, the spin cycloid lies in the a-b plane.”
- Ferroelectricity in a one-dimensional organic quantum magnet (2010, background): “Conventional approaches to designing materials that exploit such spin-mediated behaviour have focused mainly on developing the cycloidal spin orde”