Magnetic and Electric Properties of , () Layered Perovskites
The electric and magnetic properties of layered perovskites have been investigated systematically over the doping range . It was found that both Sr1.5Y0.5CoO4 and Sr1.4Y0.6CoO4 undergo ferromagnetic (FM) transition around 145 K and 120 K, respectively. On the other hand, Sr1.3Y0.7CoO4 and Sr1.2Y0.8...
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| Format: | Article |
| Language: | English |
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Wiley
2013-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2013/714143 |
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| author | A. I. Ali A. Hassen |
| author_facet | A. I. Ali A. Hassen |
| author_sort | A. I. Ali |
| collection | DOAJ |
| description | The electric and magnetic properties of layered perovskites have been investigated systematically over the doping range . It was found that both Sr1.5Y0.5CoO4 and Sr1.4Y0.6CoO4 undergo ferromagnetic (FM) transition around 145 K and 120 K, respectively. On the other hand, Sr1.3Y0.7CoO4 and Sr1.2Y0.8CoO4 compounds showed paramagnetic behavior over a wide range of temperatures. In addition, spin-glass transition () was observed at 10 K for Sr1.3Y0.7CoO4. All investigated samples are semiconducting-like within the temperature range of 10–300 K. The temperature dependence of the electrical resistivity, , was described by two-dimensional variable range hopping (2D-VRH) model at 50 K < ≤ 300 K. Comparison with other layered perovskites was discussed in this work. |
| format | Article |
| id | doaj-art-5041b129d3f04fed94708dcee188ade3 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2013-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-5041b129d3f04fed94708dcee188ade32025-02-03T01:25:54ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242013-01-01201310.1155/2013/714143714143Magnetic and Electric Properties of , () Layered PerovskitesA. I. Ali0A. Hassen1Energy Harvest-Storage Research Center and Department of Physics, University of Ulsan, Ulsan 680-749, Republic of KoreaDepartment of Physics, Faculty of Science, Fayoum University, El Fayoum 63514, EgyptThe electric and magnetic properties of layered perovskites have been investigated systematically over the doping range . It was found that both Sr1.5Y0.5CoO4 and Sr1.4Y0.6CoO4 undergo ferromagnetic (FM) transition around 145 K and 120 K, respectively. On the other hand, Sr1.3Y0.7CoO4 and Sr1.2Y0.8CoO4 compounds showed paramagnetic behavior over a wide range of temperatures. In addition, spin-glass transition () was observed at 10 K for Sr1.3Y0.7CoO4. All investigated samples are semiconducting-like within the temperature range of 10–300 K. The temperature dependence of the electrical resistivity, , was described by two-dimensional variable range hopping (2D-VRH) model at 50 K < ≤ 300 K. Comparison with other layered perovskites was discussed in this work.http://dx.doi.org/10.1155/2013/714143 |
| spellingShingle | A. I. Ali A. Hassen Magnetic and Electric Properties of , () Layered Perovskites Advances in Condensed Matter Physics |
| title | Magnetic and Electric Properties of , () Layered Perovskites |
| title_full | Magnetic and Electric Properties of , () Layered Perovskites |
| title_fullStr | Magnetic and Electric Properties of , () Layered Perovskites |
| title_full_unstemmed | Magnetic and Electric Properties of , () Layered Perovskites |
| title_short | Magnetic and Electric Properties of , () Layered Perovskites |
| title_sort | magnetic and electric properties of layered perovskites |
| url | http://dx.doi.org/10.1155/2013/714143 |
| work_keys_str_mv | AT aiali magneticandelectricpropertiesoflayeredperovskites AT ahassen magneticandelectricpropertiesoflayeredperovskites |