Structure and charge ordering behavior of the colossal magnetoresistive manganite Nd{sub 0.5}Sr{sub 0.5}MnO{sub 3}.
The structure and charge ordering (CO) behavior of the three-dimensional colossal magnetoresistive manganite Nd{sub 0.5}Sr{sub 0.5}MnO{sub 3} have been studied by transmission electron microscopy. The electron diffraction analysis suggested its room temperature structure as orthorhombic, with a Pnma space group. By controlling the experimental temperature setting either above or below the CO transition temperature, it was observed that the CO grew through the propagation of the CO front. The twin boundaries were the barriers of the CO front movement. In heavily ion irradiated samples, it was observed that the CO front was pinned by the intracrystalline defects, forming a zigzag shape interface. Moreover, the electron beam was observed to influence the CO.
- Research Organization:
- Argonne National Laboratory (ANL)
- Sponsoring Organization:
- SC
- DOE Contract Number:
- AC02-06CH11357
- OSTI ID:
- 950763
- Report Number(s):
- ANL/MSD/CP-63834
- Journal Information:
- J. Appl. Phys., Journal Name: J. Appl. Phys. Journal Issue: 2009 Vol. 105
- Country of Publication:
- United States
- Language:
- ENGLISH
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