Szczegóły publikacji
Opis bibliograficzny
Structural, magnetic and thermal properties of $CaMn_{0.99}^{57}Fe_{0.01}O_{3-\delta}$ / J. PRZEWOŹNIK, J. CHMIST, L. KOLWICZ-CHODAK, Z. TARNAWSKI, Cz. KAPUSTA, A. KOŁODZIEJCZYK // Journal of Alloys and Compounds ; ISSN 0925-8388. — 2007 — vol. 442 iss. 1–2, s. 194–196. — Bibliogr. s. 196, Abstr. — Publikacja dostępna online od: 2007-01-30. — 15th international conference on Solid compounds of transition elements : Cracow, Poland, July 15–20, 2006
Autorzy (6)
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 34231 |
|---|---|
| Data dodania do BaDAP | 2007-09-20 |
| Tekst źródłowy | URL |
| DOI | 10.1016/j.jallcom.2006.09.155 |
| Rok publikacji | 2007 |
| Typ publikacji | referat w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Journal of Alloys and Compounds |
Abstract
The polycrystalline (CaMn0.99Fe0.01O3-delta)-Fe-57 compound was studied using powder X-ray diffraction, Fe-57 Mossbauer spectroscopy, ac susceptornetry, dc magnetometry, specific heat and electrical resistivity measurements. X-ray diffraction measurements performed between 70 and 300 K show a thermal expansion anomaly at the Neel temperature. A weak ferromagnetic component and a spin-glass behaviour below Neel temperature are found in magnetic measurements. The Mossbauer spectroscopy measurements performed between 30 and 300 K provided the Neel temperature value of 118 K, the same as obtained from dc magnetisation and close to that derived from the specific heat (119 K). The temperature evolution of the Fe hyperfine field was analysed within a molecular field model and revealed equal strengths of the Fe-Mn and Mn-Mn exchange interactions in this compound. (c) 2007 Elsevier B.V. All rights reserved.
