Electronic phase diagram of oxygen-deficient SmNiO3−δepitaxial thin films
| العنوان: | Electronic phase diagram of oxygen-deficient SmNiO3−δepitaxial thin films |
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| المؤلفون: | Nan Yang, Wei Bai, Chun-Gang Duan, Xiaodong Tang, Yan Sun, Ping-Hua Xiang, Yuan-Yuan Zhang, Lin Sun, Pingxiong Yang, Bin-Jie Chen, Ni Zhong |
| المصدر: | Journal of Physics D: Applied Physics. 50:235302 |
| بيانات النشر: | IOP Publishing, 2017. |
| سنة النشر: | 2017 |
| مصطلحات موضوعية: | 010302 applied physics, Materials science, Acoustics and Ultrasonics, Transition temperature, Analytical chemistry, 02 engineering and technology, 021001 nanoscience & nanotechnology, Condensed Matter Physics, Epitaxy, 01 natural sciences, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Pulsed laser deposition, Electrical resistivity and conductivity, Phase (matter), 0103 physical sciences, Thin film, Metal–insulator transition, 0210 nano-technology, Phase diagram |
| الوصف: | Epitaxial SmNiO3−δ thin films were fabricated under various oxygen partial pressures () on (0 0 1)-oriented LaAlO3 substrates by using the pulsed laser deposition method. Continuous control of the metal–insulator transition temperature (T MI) from 350 K to 85 K was achieved by varying from 26 Pa to 0.5 Pa. The reduction of T MI can be attributed to the straightening-out of the out-of-plane Ni–O–Ni bond angle due to the elongation of unit cell volume with decreasing . When > 3 Pa, resistivity anomalies around 200 K are observed in the insulating phase of strained SmNiO3−δ films, suggesting the onset of antiferromagnetic ordering of the Ni sublattices. An electronic phase diagram of the oxygen-deficient SmNiO3−δ films has been established in this work based on the results of the transport measurements. |
| تدمد: | 1361-6463 0022-3727 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::dee749e5e85282d06a5e817059f4ae86 https://doi.org/10.1088/1361-6463/aa6de7 |
| حقوق: | CLOSED |
| رقم الأكسشن: | edsair.doi...........dee749e5e85282d06a5e817059f4ae86 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 13616463 00223727 |
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