Generation of Electric Polarization with Rotating Magnetic Field in Helimagnet ZnCr_2Se_4(Condensed matter: electronic structure and electrical, magnetic, and optical properties)

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概要

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• Application of magnetic field (H) can produce the ferroelectric polarization (P) in a proper screw helimagnet, ZnCr_2Se_4. While rotating H, we observed the cyclic generation of polarization current arising from the change of P in the conical spin structure. Versatile variations of P in magnitude and sign are observed while changing the direction and magnitude of H. The behaviors are ascribed to the rotation of the spin cones and the conserving or reversing spin-helicity upon the flop of the screw propagation vector, as affected by the competition among the magnetic anisotropy, inclination of the cone axis to H, and the P domain-wall stability.

• 社団法人日本物理学会の論文
• 2008-04-15

著者

• TOKURA Yoshinori

  Multiferroics Project (MF), ERATO, Japan Science and Technology Agency (JST)

• OHGUSHI Kenya

  Department of Applied Physics, University of Tokyo

• Murakawa Hiroshi

  Multiferroics Project Erato Japan Science And Technology Agency (jst) C O Department Of Applied Phys

• Ohgushi Kenya

  Department Of Applied Physics University Of Tokyo

• Ishiwata Shintaro

  Multiferroics Project Erato Japan Science And Technology Agency (jst) C O Department Of Applied Phys

• ONOSE Yoshinori

  Multiferroics Project, ERATO, Japan Science and Technology Agency (JST), c o Department of Applied P

• Tokura Yoshinori

  Multiferroics Project Erato Japan Science And Technology Agency (jst) C O Department Of Applied Phys

• Onose Yoshinori

  Multiferroics Project Erato Japan Science And Technology Agency (jst) C O Department Of Applied Phys

関連論文

• Magnetic, Optical, and Magnetooptical Properties of Spinel-Type ACr_2X_4 (A=Mn, Fe, Co, Cu, Zn, Cd; X=O, S, Se)(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Electric-Dipole Active Two-Magnon Excitation in ab Spiral Spin Phase of a Ferroelectric Magnet Gd_Tb_MnO_3(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Spin-Lattice Coupling in Ferroelectric Spiral Magnets : Comparison between the Cases of (Tb,Dy)MnO_3 and CoCr_2O_4(Condensed matter: structure and mechanical and thermal properties)
• Photoinduced Dynamics of Sublattice Magnetization in Ferrimagnets : FeCr_2S_4 and CoCr_2S_4(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Anisotropic Anomalous Hall Effect of Topological Origin in Carrier-Doped FeCr_2S_4(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
• Generation of Electric Polarization with Rotating Magnetic Field in Helimagnet ZnCr_2Se_4(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
• Magneto-Optical Characterization on the Ferromagnetic-Paramagnetic Transitions in the Composition-Spread Epitaxial Film of Sr_Ca_xRuO_3
• Electric-Dipole Active Two-Magnon Excitation in ab Spiral Spin Phase of a Ferroelectric Magnet Gd_Tb_MnO_3

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