Weak ferromagnetism in BiFeO3 doped with titanium

✍ Scribed by I.O. Troyanchuk; N.V. Tereshko; A.N. Chobot; M.V. Bushinsky; K. Bärner

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 357 KB
• Volume: 404
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2009.07.183

✦ Synopsis

The Bi 1Àx A x Fe 1Àx Ti x O 3 (A-Ca, Sr, Pb, Ba) and BiFe 1Àx Ti x O 3+d systems have been studied using X-ray, neutron powder diffraction and magnetization measurements in a magnetic field up to 14 T. It was found that all Bi 1Àx A x Fe 1Àx Ti x O 3 solid solutions are rhombohedral up to x ¼ 0.3. In the case of BiFe 1Àx Ti x O 3+d the rhombohedral distortion preserved up to x ¼ 0.11. A homogeneous weakly ferromagnetic state was found for Bi 1Àx Ca x Fe 1Àx Ti x O 3 (0.15rxr0.25) and BiFe 1Àx Ti x O 3+d (0.06rxr0.11), probably due to magnetoelectric interactions, whereas Bi 1Àx A x Fe 1Àx Ti x O 3 (A-Sr, Pb, Ba) compounds above doping level x40.1 seem to be collinear antiferromagnets.