Szczegóły publikacji
Opis bibliograficzny
$^{55}$Mn nuclear magnetic resonance study of highly Sr-doped $La_{2-2x}Sr_{1+2x}Mn_{2}O_{7}$ (x=0.5-0.8) / D. RYBICKI, Cz. KAPUSTA, W. TOKARZ, H. Štěpánková, V. Procházka, J. Haase, Z. Jirák, D. T. Adroja, J. F. Mitchell // Physical Review . B, Condensed Matter and Materials Physics ; ISSN 1098-0121. — Tytuł poprz.: Physical Review B : Condensed Matter. — 2008 — vol. 78 iss. 18, s. 184428-1–184428-8. — Bibliogr. s. 184428-7–184428-8
Autorzy (9)
- AGHRybicki Damian
- AGHKapusta Czesław
- AGHTokarz Waldemar
- Stepankova Helena
- Procházka Vít
- Haase Jürgen
- Jirak Zdenek
- Adroja D. T.
- Mitchell John F.
Dane bibliometryczne
| ID BaDAP | 43220 |
|---|---|
| Data dodania do BaDAP | 2009-02-04 |
| Tekst źródłowy | URL |
| DOI | 10.1103/PhysRevB.78.184428 |
| Rok publikacji | 2008 |
| Typ publikacji | artykuł w czasopiśmie |
| Otwarty dostęp |  |
| Czasopismo/seria | Physical Review, B |
Abstract
The M 55 n nuclear magnetic resonance (NMR) study of bilayered perovskites La2-2x Sr1+2x Mn2 O7 with 0.5≤x≤1 is presented. The M 55 n spin-echo spectra were measured at 4.2 K at zero applied magnetic field and at fields up to 2.5 T. Recent neutron-diffraction studies report that all the compounds studied are antiferromagnetically ordered (except x=0.68 in which no long-range magnetic order was found). However, within the doping range 0.62≤x≤0.68, apart from NMR signal from antiferromagnetic insulating (AFI) phase, also lines from ferromagnetic insulating (FMI) and ferromagnetic metallic (FMM) phases are observed. This indicates that phase separation occurs in high Sr-doped bilayered manganites. The amount of the FMI and FMM regions decreases with the Sr doping level and for compounds with x=0.75 and x=0.8; only the line originating from nuclei in Mn4+ cations in AFI regions is observed. © 2008 The American Physical Society.
