On the Magnetic Ground State of La0.85Sr0.15CoO3 Single Crystals
| العنوان: | On the Magnetic Ground State of La0.85Sr0.15CoO3 Single Crystals |
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| المؤلفون: | D. Samal, Kaustuv Manna, P. S. Anil Kumar, H. L. Bhat, Suja Elizabeth |
| المصدر: | The Journal of Physical Chemistry C. 115:13985-13990 |
| بيانات النشر: | American Chemical Society (ACS), 2011. |
| سنة النشر: | 2011 |
| مصطلحات موضوعية: | Condensed Matter::Materials Science, Float zone, General Energy, Materials science, Condensed matter physics, Physics, Condensed Matter::Strongly Correlated Electrons, Physical and Theoretical Chemistry, Ground state, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials |
| الوصف: | We present an extensive study on magnetic and transport properties of La(0.85)Sr(0.15)CoO(3) single crystals grown by a float zone method to address the issue of phase separation versus spin-glass (SG) behavior. The dc magnetization study reveals a kink in field-cooled magnetization, and the peak in the zero-field-cooling curve shifts to lower temperature at modest dc fields, indicating the SG magnetic phase. The ac susceptibility study exhibits a considerable frequency-dependent peak shift (similar to 4 K) and a time-dependent memory effect below the freezing temperature. In addition, the characteristic time scale tau(0) estimated from the frequency-dependent ac susceptibility measurement is found to be similar to 10(-13) s, which matches well with typical values observed in canonical SG systems. The transport relaxation study evidently demonstrates the time-dependent glassy phenomena. In essence, all our experimental results corroborate the existence of SG behavior in La(0.85)Sr(0.15)CoO(3) single crystals. |
| وصف الملف: | application/pdf |
| تدمد: | 1932-7455 1932-7447 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ddb9b1e0d33a229e07145d1b6d7b384e https://doi.org/10.1021/jp201206a |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....ddb9b1e0d33a229e07145d1b6d7b384e |
| قاعدة البيانات: | OpenAIRE |
Find this issue from the American Chemical Society | تدمد: | 19327455 19327447 |
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