Anti-site Disorder Driven Unusual Magnetic Properties in Sm2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{2} $$\end{document}NiMnO6\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{6} $$\end{document} Double Perovskite

被引：0

作者：

S. Majumder ^{[1
]}

S. Saha ^{[2
]}

M. Tripathi ^{[1
]}

P. Rajput ^{[3
]}

S. N. Jha ^{[4
]}

R. J. Choudhary ^{[4
]}

D. M. Phase ^{[1
]}

机构：

[1] UGC DAE Consortium for Scientific Research,Materials Science and Engineering Department

[2] Northwestern University,Beamline Development and Application Section

[3] Niels Bohr Institute,undefined

[4] University of Copenhagen,undefined

[5] Bhabha Atomic Research Centre,undefined

来源：

Journal of Superconductivity and Novel Magnetism | 2025年 / 38卷 / 1期

关键词：

Anti-site disorder; Double perovskite; Disordered materials; Competing magnetic interactions;

D O I：

10.1007/s10948-024-06845-z

中图分类号：

学科分类号：

摘要：

Cation ordered double perovskite RE2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{2}$$\end{document}NiMnO6\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$_{6}$$\end{document} (RE: rare-earth) is commonly believed to show two distinct magnetic phase transitions, one at T = TC\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{C} $$\end{document} because of Ni-O-Mn ferromagnetic (FM) super exchange interaction and another at T = Td\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{d} $$\end{document} due to the polarization of RE spins opposite with respect to Ni-Mn network. In the present work, the structural, electronic, and magnetic properties of anti-site disordered Sm2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{2} $$\end{document}NiMnO6\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{6} $$\end{document} (SNMO) have been investigated. It is observed that the presence of intrinsic B-site disorder results in an additional antiferromagnetic (AFM) coupling, mediated via Ni-O-Ni and Mn-O-Mn local bond pairs. As a consequence, the magnetic behavior of SNMO comprises of co-existing FM-AFM phases. Field-dependent inverted cusp-like trend in temperature-dependent magnetization, thermal irreversibility in cooling-warming paths of susceptibility, two-step reversibility in magnetic isotherm, and non-monotonicity in the thermal evolution of coercivity and remanence indicate the presence of competing magnetic phases over a wide range of temperature values (Td<\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{d} < $$\end{document} T < TC\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$ _{C} $$\end{document}).

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