Premium
Ferromagnetic insulating behavior at low temperature induced by Sn doping in the ceramic SrRuO 3
Author(s) -
Liu Yanliang,
Zhang Zhe,
Lv Jiecheng,
Qian Peihua,
Cai Hongling,
Wu Xiaoshan
Publication year - 2021
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.17800
Subject(s) - materials science , condensed matter physics , doping , ferromagnetism , atmospheric temperature range , crystallite , variable range hopping , arrhenius equation , magnetic moment , metal–insulator transition , transition temperature , metal , thermal conduction , activation energy , chemistry , metallurgy , thermodynamics , physics , composite material , superconductivity
Effects of Sn doping at Ru site on the structural, magnetic, and transport behavior of polycrystalline SrRu 1− x Sn x O 3 ( x ≤ 0.1) have been investigated here. Substitution of Sn 4+ for Ru 4+ remains the same crystal symmetry with that of Sn‐free SrRuO 3 , while induces the Ru(Sn)O 6 octahedral distortions. Samples with the low doping concentration ( x ≤ 0.08) show a metallic behavior at high temperature, while a metal to insulator transition occurs at low temperature. On the other hand, an insulator behavior is detected for sample with x = 0.1, which follows Arrhenius‐type process in the temperature range of 80–140 K and Mott's variable range hopping model in the temperature range of 140–300 K. Further, we find that Sn 4+ has a significant effect on the magnetic behavior of Sn doping in SrRuO 3 where ferromagnetic transition temperature and magnetic moment decrease rapidly due to octahedral distortion and site dilution.