Volume 83, Number 4, August 2008
|Number of page(s)||4|
|Section||Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties|
|Published online||19 August 2008|
Investigating the occurrence of magnetic order in strained thin films of Pr0.5Ca0.5MnO3 by muon spin relaxation
Kamerlingh Onnes Laboratory, Leiden University - Leiden, The Netherlands, EU
2 Shenyang National Laboratory for Materials Science, Institute of Metal Research and International Center for Materials Physics, Chinese Academic of Science - 72 Wenhua Road, Shenyang 110016, PRC
3 Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute - CH-5232 Villigen PSI, Switzerland
Corresponding author: firstname.lastname@example.org
Accepted: 30 June 2008
We measured the antiferromagnetic transition temperature TN in a thin film (25 nm) of Pr0.5Ca0.5MnO3 (PCMO) on SrTiO3 (STO), which also shows charge and orbital order. The tensile strain was shown earlier to yield a considerable increase of the charge order temperature. Here we measure the spin depolarization rate of low-energy muons, and find that the onset of magnetic order in such a strained film is at the same temperature as TN of the bulk material, from which we infer that strain has not changed the magnetic order. This is in very good agreement with the general theoretical understanding of the physics of manganites at half-filling.
PACS: 73.50.-h – Electronic transport phenomena in thin films / 75.47.Gk – Colossal magnetoresistance
© EPLA, 2008
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