Left-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrations
The experimental study of Double Negative (DNG) state of electromagnetic wave propagating in lanthanum manganite-perovskites doped with strontium La1-xSrxMnO3 is provided firstly below individual Curie temperatures (in ferromagnetic metal state (FM) for La1-xSrxMnO3). Various dopant concentrations a...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2014-03-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/1.4869310 |
| _version_ | 1819152560523575296 |
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| author | D. P. Belozorov A. A. Girich S. I. Tarapov A. M. Pogorily A. I. Tovstolytkin A. G. Belous S. A. Solopan |
| author_facet | D. P. Belozorov A. A. Girich S. I. Tarapov A. M. Pogorily A. I. Tovstolytkin A. G. Belous S. A. Solopan |
| author_sort | D. P. Belozorov |
| collection | DOAJ |
| description | The experimental study of Double Negative (DNG) state of electromagnetic wave propagating in lanthanum manganite-perovskites doped with strontium La1-xSrxMnO3 is provided firstly below individual Curie temperatures (in ferromagnetic metal state (FM) for La1-xSrxMnO3). Various dopant concentrations are considered for ceramic specimens: x = 0.15; 0.225; 0.3; 0.45; 0.6. It is shown that dependence of the DNG-peak intensity on dopant concentration is sharply non-monotone with maximum at the dopant concentrations x = 0.225 – 0.3. This behaviour follows the change of Curie temperature with increase of dopant concentration in such substances. The obtained dependence of DNG peak intensity supports the opinion concerning the role of disorder in highly doped manganite-perovskite magnetic ceramics under study. |
| first_indexed | 2024-12-22T14:51:14Z |
| format | Article |
| id | doaj.art-76ab969f9e944e4093bfdd0cab1d3853 |
| institution | Directory Open Access Journal |
| issn | 2158-3226 |
| language | English |
| last_indexed | 2024-12-22T14:51:14Z |
| publishDate | 2014-03-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj.art-76ab969f9e944e4093bfdd0cab1d38532022-12-21T18:22:19ZengAIP Publishing LLCAIP Advances2158-32262014-03-0143037116037116-710.1063/1.4869310016403ADVLeft-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrationsD. P. Belozorov0A. A. Girich1S. I. Tarapov2A. M. Pogorily3A. I. Tovstolytkin4A. G. Belous5S. A. Solopan6Institute for Theoretical Physics NSC “Kharkov Institute of Physics & Technology” NAS of Ukraine; 1 Akademicheskaja St., Kharkov, 61108, UkraineInstitute of Radiophysics and Electronics NAS of Ukraine; 12 Proskura St., Kharkov, 61085, UkraineInstitute of Radiophysics and Electronics NAS of Ukraine; 12 Proskura St., Kharkov, 61085, UkraineInstitute of Magnetism, 36-b Vernadsky Blvd., Kyiv 03142, UkraineInstitute of Magnetism, 36-b Vernadsky Blvd., Kyiv 03142, UkraineInstitute of General and Inorganic Chemistry, 32/34 Palladina Blvd., Kyiv 03142, UkraineInstitute of General and Inorganic Chemistry, 32/34 Palladina Blvd., Kyiv 03142, UkraineThe experimental study of Double Negative (DNG) state of electromagnetic wave propagating in lanthanum manganite-perovskites doped with strontium La1-xSrxMnO3 is provided firstly below individual Curie temperatures (in ferromagnetic metal state (FM) for La1-xSrxMnO3). Various dopant concentrations are considered for ceramic specimens: x = 0.15; 0.225; 0.3; 0.45; 0.6. It is shown that dependence of the DNG-peak intensity on dopant concentration is sharply non-monotone with maximum at the dopant concentrations x = 0.225 – 0.3. This behaviour follows the change of Curie temperature with increase of dopant concentration in such substances. The obtained dependence of DNG peak intensity supports the opinion concerning the role of disorder in highly doped manganite-perovskite magnetic ceramics under study.http://dx.doi.org/10.1063/1.4869310 |
| spellingShingle | D. P. Belozorov A. A. Girich S. I. Tarapov A. M. Pogorily A. I. Tovstolytkin A. G. Belous S. A. Solopan Left-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrations AIP Advances |
| title | Left-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrations |
| title_full | Left-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrations |
| title_fullStr | Left-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrations |
| title_full_unstemmed | Left-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrations |
| title_short | Left-handed properties of manganite-perovskites La1-xSrxMnO3 at various dopant concentrations |
| title_sort | left handed properties of manganite perovskites la1 xsrxmno3 at various dopant concentrations |
| url | http://dx.doi.org/10.1063/1.4869310 |
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