Electron- and Hole-Doping Effects on $A$-site Ordered NdBaMn$_2$O$_6$

Details Electron- and Hole-Doping Effects on $A$-site Ordered NdBaMn$_2$O$_6$ Electron- and Hole-Doping Effects on $A$-site Ordered NdBaMn$_2$O$_6$

2011-05-12

arxiv.org/abs/1105.2366v1

J. Phys. Soc. Jpn. 80 (2011) 074708

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 5 figures, to be published in Journal of the Physical Society of Japan

Scientific paper

We have investigated electron- and hole-doping effects on $A$-site ordered perovskite manganite NdBaMn$_2$O$_6$, which has the $A$-type (layered) antiferromagnetic (AFM) ground state. Electrons (holes) are introduced by partial substitution of Ba$^{2+}$ (Nd$^{3+}$) with Nd$^{3+}$ (Ba$^{2+}$). Electron-doping generates ferromagnetic (FM) clusters in the $A$-type AFM matrix. With increasing the electron-doping level, the volume fraction of the FM phase or the number of the FM clusters is abruptly increasing. In contrast, the $A$-type AFM phase is robust against the hole-doping, and no FM correlation is observed in the hole-doped NdBaMn$_2$O$_6$.

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