中国物理B ›› 2015, Vol. 24 ›› Issue (6): 67702-067702.doi: 10.1088/1674-1056/24/6/067702

• CONDENSED MATTER: ELECTRONIC STRUCTURE, ELECTRICAL, MAGNETIC, AND OPTICAL PROPERTIES • 上一篇    下一篇

Magnetic and ferroelectric properties of Zn and Mn co-doped BaTiO3

Sangram Keshari Das, Binod Kumar Roul   

  1. Institute of Materials Science, Planetarium Building, Acharaya Vihar, Bhubaneswar-751013, Odisha, India
  • 收稿日期:2014-10-26 修回日期:2015-01-07 出版日期:2015-06-05 发布日期:2015-06-05

Magnetic and ferroelectric properties of Zn and Mn co-doped BaTiO3

Sangram Keshari Das, Binod Kumar Roul   

  1. Institute of Materials Science, Planetarium Building, Acharaya Vihar, Bhubaneswar-751013, Odisha, India
  • Received:2014-10-26 Revised:2015-01-07 Online:2015-06-05 Published:2015-06-05
  • Contact: Binod Kumar Roul E-mail:ims@iopb.res.in
  • About author:77.84.-s; 81.05.Mh; 76.50.+g

摘要: This paper reports an approach to obtaining multiferroic properties in co-doped (Zn:Mn) BaTiO3 near room temperature. Interestingly, an unusual magnetic hysteresis loop is observed in the co-doped compositions in which the central portion of the loop is squeezed. However, in the composition Ba0.9Zn0.1Ti0.9Mn0.1O3, a broad magnetic hysteresis loop is observed. Such a magnetic effect is attributed to the coexistence of antiferromagnetic and ferromagnetic exchange interactions in the system. The observation of the above type of magnetic properties is likely to be due to the presence of exchange interactions between Mn ions. A lossy-type of ferroelectric hysteresis loop is also observed in co-doped ceramic compositions near room temperature.

关键词: ferroelectrics, ceramic, ferromagnetic

Abstract: This paper reports an approach to obtaining multiferroic properties in co-doped (Zn:Mn) BaTiO3 near room temperature. Interestingly, an unusual magnetic hysteresis loop is observed in the co-doped compositions in which the central portion of the loop is squeezed. However, in the composition Ba0.9Zn0.1Ti0.9Mn0.1O3, a broad magnetic hysteresis loop is observed. Such a magnetic effect is attributed to the coexistence of antiferromagnetic and ferromagnetic exchange interactions in the system. The observation of the above type of magnetic properties is likely to be due to the presence of exchange interactions between Mn ions. A lossy-type of ferroelectric hysteresis loop is also observed in co-doped ceramic compositions near room temperature.

Key words: ferroelectrics, ceramic, ferromagnetic

中图分类号:  (Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)

  • 77.84.-s
81.05.Mh (Cermets, ceramic and refractory composites) 76.50.+g (Ferromagnetic, antiferromagnetic, and ferrimagnetic resonances; spin-wave resonance)