An electron paramagnetic resonance study of phase segregation in Nd0.5Sr0.5MnO3
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چکیده
منابع مشابه
An Electron Paramagnetic Resonance Study of Phase Segregation in Nd0.5Sr0.5MnO3
We present results of an electron paramagnetic resonance (EPR) study of Nd1−xSrxMnO3 with x = 0.5 across the paramagnetic to ferromagnetic, insulator to metal transition at 260 K (Tc) and the antiferromagnetic, charge ordering transition (TN = Tco) at 150 K. The results are compared with those on Nd0.45Sr0.55MnO3 which undergoes a transition to a homogeneous A-type antiferromagnetic phase at TN...
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We present electron paramagnetic resonance (EPR) results on Nd1−xSrxMnO3 with x = 0.5 which shows phase separation below the Curie temperature Tc= 250 K and compare with those of x = 0.55 which does not show any phase separation. EPR results clearly show the signature of phase separation in the former below Tc. From the analysis of temperature dependence of the resonant fields we conclude that ...
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where E0 is the energy level without any external magnetic field B = B0êz. Again, g denotes the g factor[5]. For induced transitions, the selection rule is ∆ms = ±1. For unpaired electrons, however, this selection rule is observed for all transitions, as S = 12 and, hence, ms ∈ {− 12 , 2}. The previous formulas are based on the assumption that the response of the material on the external magnet...
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ژورنال
عنوان ژورنال: Journal of Magnetism and Magnetic Materials
سال: 2004
ISSN: 0304-8853
DOI: 10.1016/j.jmmm.2004.01.072