Abnormal Magnetic Behaviors in Unique Square alpha-MnO2 Nanotubes

Autor:	Zeng, R., Wang, J. Q., Li, W. X., Du, G. D., Chen, Z. X., Li, S., Dou, S. X.
Rok vydání:	2012
Předmět:	Condensed Matter - Materials Science
Druh dokumentu:	Working Paper
Popis:	Systematic magnetic measurements have been performed in unique$\alpha - MnO_2$ square nanotubes synthesized by a facile hydrothermal method with microwave-assisted procedures. Unusual magnetic phenomena (abnormal magnetization verse temperature (M - T) behaviour, large and abnormal magnetization hysteresis loop horizontal shift (HHS) verse cooling field (HFC) behaviours (HHS - HFC) has been observed in these square nanotubes. These suggest the observation of large unfrozen orbital moment which also is the micro -original of observed large and abnormal horizontal shift (HHS). The findings demonstrated that engineering layered structures in nanoscale would create many unique nanostructures and unusual physicochemical behaviours. Comment: 23 Pgs, 10 Figs
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1207.3350 Zobrazit plný text záznamu View this record from Arxiv