2006The Journal of Physical Chemistry B

Size-Manipulable Synthesis of Single-Crystalline BaMnO₃ and BaTi₁/₂Mn₁/₂O₃ Nanorods/Nanowires

C. G. Hu, H. Liu, C. S. Lao, L. Y. Zhang, D. Davidovic, Z. L. Wang

The Journal of Physical Chemistry B · 110, 14050-14054 (2006)

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Introduction

The study grows single-crystal barium manganite and barium titanium manganite nanorods in a hydroxide medium. Reaction time, temperature and water content tune rod length. Resistance reveals a transition near 58 K in the former compound; the latter shows two emission peaks.

A closer reading

The two compounds supply distinct observations, one electrical and the other optical. Control over rod length sets up a systematic size-effect experiment; these measurements do not by themselves establish a quantitative law connecting rod length to magnetism.