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| Home > Publications database > Neutron-diffraction study of structural transition and magnetic order in orthorhombic and rhombohedral La7/8Sr1/8Mn1-gammaO3+delta > print |
| 001 | 56407 | ||
| 005 | 20240619092101.0 | ||
| 024 | 7 | _ | |2 pmid |a pmid:21690971 |
| 024 | 7 | _ | |2 DOI |a 10.1088/0953-8984/19/17/176226 |
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| 037 | _ | _ | |a PreJuSER-56407 |
| 041 | _ | _ | |a eng |
| 082 | _ | _ | |a 530 |
| 084 | _ | _ | |2 WoS |a Physics, Condensed Matter |
| 100 | 1 | _ | |0 P:(DE-Juel1)144092 |a Li, H.-F. |b 0 |u FZJ |
| 245 | _ | _ | |a Neutron-diffraction study of structural transition and magnetic order in orthorhombic and rhombohedral La7/8Sr1/8Mn1-gammaO3+delta |
| 260 | _ | _ | |a Bristol |b IOP Publ. |c 2007 |
| 300 | _ | _ | |a 176226-1 -176226-12 |
| 336 | 7 | _ | |a Journal Article |0 PUB:(DE-HGF)16 |2 PUB:(DE-HGF) |
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| 336 | 7 | _ | |a Journal Article |0 0 |2 EndNote |
| 336 | 7 | _ | |a ARTICLE |2 BibTeX |
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| 336 | 7 | _ | |a article |2 DRIVER |
| 440 | _ | 0 | |0 3703 |a Journal of Physics: Condensed Matter |v 19 |x 0953-8984 |
| 500 | _ | _ | |a Record converted from VDB: 12.11.2012 |
| 520 | _ | _ | |a We report on a systematic neutron powder diffraction (NPD) study of polycrystalline La(7/8)Sr(1/8)Mn(1-γ)O(3+δ) compounds. We investigated the structural and magnetic phases and transitions in the temperature range between 10 and 900 K for two different samples: an Ar-annealed sample with an orthorhombic Pbnm (Z = 4; O) structure at room temperature and an air-sintered sample with a rhombohedral [Formula: see text] (Z = 2;R) structure at room temperature. At higher temperatures, above 400 K, both samples exhibit a rhombohedral structure. For the Ar-annealed sample, a Jahn-Teller (JT) transition occurs in the orthorhombic phase at about 298 K with very large variations in the Mn-O2' and Mn-O2 bond lengths and Mn-O1-Mn bond angle on cooling from 298 to 180 K. For this sample the ferromagnetic moment at 10 K in the magnetic space group Pb'n'm amounts to 3.22(5) μ(B)/Mn. In contrast, the air-sintered sample undergoes on cooling a structural transition from rhombohedral (R) to orthorhombic (O) with a mixed phase of nearly equal R and O repartition at 120 K. Ferromagnetic order develops in this sample at about 240 K with a low-temperature moment of 3.35(4) μ(B)/Mn at 10 K. The coherent JT distortion in its orthorhombic phase occurs below some 170 K. In addition, we have determined the coherent JT distortion parameter Δ, the tolerance factor t and the one-electron bandwidth W of the e(g)-band. |
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| 700 | 1 | _ | |0 P:(DE-Juel1)130836 |a Meuffels, P. |b 3 |u FZJ |
| 700 | 1 | _ | |0 P:(DE-Juel1)VDB67499 |a Walter, J. M. |b 4 |u FZJ |
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| 700 | 1 | _ | |0 P:(DE-Juel1)130572 |a Brückel, T. |b 6 |u FZJ |
| 773 | _ | _ | |0 PERI:(DE-600)1472968-4 |a 10.1088/0953-8984/19/17/176226 |g Vol. 19, p. 176226-1 -176226-12 |p 176226-1 -176226-12 |q 19<176226-1 -176226-12 |t Journal of physics / Condensed matter |v 19 |x 0953-8984 |y 2007 |
| 856 | 7 | _ | |u http://dx.doi.org/10.1088/0953-8984/19/17/176226 |
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