Sundaresan, A. ; Caignaert, V. ; Raveau, B. ; Suard, E. (1997) Nuclear and magnetic structures in new distorted perovskites Pr0.5−xCexSr0.5MnO3 (x = 0.1 and 0.2) Solid State Communications, 104 (8). pp. 489-493. ISSN 0038-1098
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Official URL: http://doi.org/10.1016/S0038-1098(97)00352-9
Related URL: http://dx.doi.org/10.1016/S0038-1098(97)00352-9
Abstract
Neutron diffraction, magnetic susceptibility and electrical transport measurements have been carried out on Pr0.5−xCexSr0.5MnO3 with x = 0.1 and 0.2. At room temperature, these two samples crystallize in a tetragonal structure with space group . The sample with x = 0.1 undergoes a transition from a paramagnetic metal to a ferromagnetic metal and then to an antiferromagnetic insulator. For x = 0.2, although it exhibits similar magnetic transitions, resistivity in both the para- and ferromagnetic states increases with decreasing temperature. The latter behavior is attributed to scattering of Mn : 3d conduction electrons by the localized Ce : 4f1 moment. In the antiferromagnetic insulating state, the nuclear structure is determined to be orthorhombic with space group Fmmm and the magnetic structure has a layered (A)-type antiferromagnetic spin arrangement and there is no indication for charge ordering.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
ID Code: | 120202 |
Deposited On: | 24 Jun 2021 04:42 |
Last Modified: | 24 Jun 2021 04:42 |
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