Work

Magnetic Inversion Symmetry Breaking and Ferroelectricity in TbMnO 3

Year: 2005

Type: article

Abstract: 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.

Source: Physical Review Letters

DOI: 10.1103/physrevlett.95.087206

Authors: M. Kenzelmann, A. B. Harris, S. Jonas, C. Broholm, J. Schefer, S. B. Kim, C. L. Zhang, S.-W. Cheong, O. P. Vajk, J. W. Lynn

Institutions: Johns Hopkins University, Paul Scherrer Institute, ETH Zurich, Laboratory for Solid State Physics, University of Pennsylvania, National Institute of Standards and Technology, NIST Center for Neutron Research, Rutgers, The State University of New Jersey

Language: English

Topic: Multiferroics and related materials

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: green

Funders: National Science Foundation, University of Pennsylvania, Johns Hopkins University, Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung, Paul Scherrer Institut, Materials Research Science and Engineering Center, Harvard University, Division of Materials Research

Awards: Strong magnetic fluctuations in low-dimensional spin lattices, The Center for High Resolution Neutron Scattering (CHRNS), G3023097374, Training Technicians for Connected Technologies in Businesses and Smart Homes, Katalysierte Umsetzungen mit Metall-trifluorme- thansulfonaten als Alternative zum Fischer-Tropsch System.

OpenAlex ID: W2080178656

FWCI: 30.65

Cites: 13

Cited by: 882

Related to: 10