Szczegóły publikacji
Opis bibliograficzny
Crystal and magnetic structures of $R_{2}Ni_{2}In$ compounds (R = Tb and Ho) / Stanisław Baran, Aleksandra Deptuch, Andreas Hoser, Bogusław Penc, Janusz PRZEWOŹNIK, Andrzej Szytuła // Acta Crystallographica . Section B-Structural Science, Crystal Engineering and Materials ; ISSN 2052-5206. — 2023 — vol. 79 iss. 5, s. 346–353. — Bibliogr. s. 353, Abstr. — Publikacja dostępna online od: 2023-08-14
Autorzy (6)
- Baran Stanisław
- Deptuch Aleksandra
- Hoser Andreas
- Penc Bogusław
- AGHPrzewoźnik Janusz
- Szytuła Andrzej
Słowa kluczowe
Dane bibliometryczne
| ID BaDAP | 150254 |
|---|---|
| Data dodania do BaDAP | 2024-01-05 |
| Tekst źródłowy | URL |
| DOI | 10.1107/S2052520623006315 |
| Rok publikacji | 2023 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Acta Crystallographica, Section B, Structural Science, Crystal Engineering and Materials |
Abstract
Crystal and magnetic structures of R2Ni2In (R = Tb and Ho) have been studied using powder neutron diffraction at low temperatures. The compounds crystallize as orthorhombic crystal structures of the Mn2AlB2 type. At low temperatures, the magnetic moments localized solely on the rare earth atoms form antiferromagnetic structures. The Tb magnetic moments, equal to 8.8 (4) B and parallel to the c axis, form a collinear magnetic structure described by the propagation vector k = [1 2 , 1 2 , 1 2]. This magnetic structure is stable up to the Néel temperature TN = 40 K. For Ho2Ni2In a complex, temperaturedependent magnetic structure is detected. In the temperature range 6.1-8.6 K, an incommensurate sinusoidal magnetic structure, described by the propagation vector k1 = [0.24, 1, 0.52] is observed, while in the temperature interval 2.2-2.5 K a square-modulated magnetic structure, related to k2 = [0:17] 5 6 ; 1 2- (the component along the a axis slightly differs from the commensurate value) and its third harmonics 3k2 = [0:50] 5 2 ; 3 2- is found. At 3.1-3.7 K as well as below 2 K, a coexistence of both detected magnetic structures is observed. The Ho magnetic moments remain parallel to the c axis in both the sine- and square-modulated magnetic structures. The low-temperature heat capacity data confirm a firstorder transition near 3 K.
