| Issue |
Europhys. Lett.
Volume 74, Number 3, May 2006
|
|
|---|---|---|
| Page(s) | 506 - 511 | |
| Section | Condensed matter: electronic structure, electrical, magnetic, and optical properties | |
| DOI | https://doi.org/10.1209/epl/i2005-10561-8 | |
| Published online | 07 April 2006 | |
Charge ordering melting and evidence for a metastable
antiferromagnetic phase in 
Hefei High Magnetic Field Laboratory, University of Science and Technology of China Hefei 230026, PRC
Received:
23
March
2005
Accepted:
9
March
2006
The magnetic properties and stability in (
) polycrystalline manganites have been studied. We find that
the Ti-dopant causes the melting of the charge ordering state and
the presence of the short-range antiferromagnetic phase. The
electron-spin resonance spectra and 
hysteresis loops reveal
that the antiferromagnetic coupling is weakened rather than
strengthened upon temperature decreases. The short-range
antiferromagnetic phase is metastable and transforms into the
stable ferromagnetic state.
PACS: 75.47.Lx – Manganites / 64.60.My – Metastable phases / 75.50.Ee – Antiferromagnetics
© EDP Sciences, 2006
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