Abstract
Magnetic and electronic transport properties of the electron-doped manganites La 0.9− x A x Te 0.1MnO 3 (A = Y or Ho, 0.05 ⩽ x ⩽ 0.15 ) have been investigated by measurements of magnetization, resistivity and magnetoresistance. All samples undergo a paramagnetic (PM)–ferromagnetic (FM) phase transition at Curie temperature T C and T C shifts to lower temperature with increasing Y/Ho doping level. It is very interesting to find that the values of T C and M of the Ho composition are smaller than those of the Y composition for the same concentration, although Y and Ho ions have almost the same ionic radii. Electronic transport measurements indicate that the Ho-doped compound have higher resistivity than the Y-doped one for the same doping level. These observed results are discussed according to the antiferromagnetic (AFM) coupling of the Ho magnetic moment to that of Mn.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.