| Autor: |
A. Ghosh, A. Chanda, R. Mahendiran |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
AIP Advances, Vol 11, Iss 3, Pp 035031-035031-5 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2158-3226 |
| DOI: |
10.1063/5.0039709 |
| Popis: |
We report the anomalous Nernst effect (ANE) in polycrystalline metallic perovskite Pr0.5Sr0.5CoO3. The transverse Seebeck coefficient (Sxy) was measured at selected temperatures for magnetic fields up to H = 50 kOe and also as a function of temperature at two selected magnetic fields (H = 2 and 10 kOe). While Sxy increases linearly with H above the Curie temperature (TC ∼ 229 K), it changes non-linearly at low fields in the ferromagnetic state and exhibits hysteresis similar to magnetization. Linear extrapolation of the high field Sxy vs H graph to zero field gives Sxy = 0.46 µV/K at 175 K. It is found that the manganite counterpart Pr0.5Sr0.5MnO3 having a similar hole content exhibits much smaller Sxy than Pr0.5Sr0.5CoO3 in a field of 2 kOe. Our analysis suggests that the ANE in this sample is most likely due to asymmetric skew scattering of charge carriers. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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