Academic Journal
Magnetic and structural properties of La1−xGdx CoO3 compounds
| العنوان: | Magnetic and structural properties of La1−xGdx CoO3 compounds |
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| المؤلفون: | Panfilov, Anatoly S., Grechnev, Gennadiy E., Lyogenkaya, Anastasiya A., Pashchenko, Volodymyr A., Vasylechko, Leonid O., Hreb, Vasyl M., Kovalevsky, Andrei V. |
| بيانات النشر: | Elsevier |
| سنة النشر: | 2023 |
| المجموعة: | Repositório Institucional da Universidade de Aveiro (RIA) |
| مصطلحات موضوعية: | La1−x Gdx CoO3 compounds, Magnetic susceptibility, Spin states crossover, Chemical pressure effect |
| الوصف: | We present a study of magnetic and structural properties of La1−xGdxCoO3 compounds with x = 0, 0.2, 0.5 and 1. The Gd term in magnetic susceptibility obeys the Curie-Weiss law with antiferromagnetic interaction between the magnetic moments of Gd3+ ions. The value of the paramagnetic Curie temperature Θ is proportional to Gd content and for GdCoO3 it reaches Θ ' −5.5 K. The Co contribution, χCo(T), derived by subtracting the Gd term from the total susceptibility, shows a non-monotonous behavior which is originated by the temperature induced transition of Co3+ ions from the ground low spin state to a higher spin state separated by an energy ∆. The revealed strong increase in ∆ with increasing Gd content is presumably due to the manifestation of a chemical pressure upon replacing La with Gd having a smaller ionic size. ; published |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| تدمد: | 0921-4526 |
| Relation: | info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDB%2F50011%2F2020/PT; info:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UIDP%2F50011%2F2020/PT; POCI-01-0145-FEDER-031875; 0118U000264; http://hdl.handle.net/10773/31718 |
| DOI: | 10.1016/j.physb.2021.412848 |
| الاتاحة: | http://hdl.handle.net/10773/31718 https://doi.org/10.1016/j.physb.2021.412848 |
| Rights: | embargoedAccess ; http://creativecommons.org/licenses/by-nc-nd/4.0/ |
| رقم الانضمام: | edsbas.A2625E90 |
| قاعدة البيانات: | BASE |
| تدمد: | 09214526 |
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| DOI: | 10.1016/j.physb.2021.412848 |