There are no files associated with this item.
Full metadata record
DC Field | Value | Language |
---|---|---|
dc.citation.number | 24 | - |
dc.citation.title | PHYSICAL REVIEW B | - |
dc.citation.volume | 102 | - |
dc.contributor.author | Mahana, Sudipta | - |
dc.contributor.author | Pandey, Shishir Kumar | - |
dc.contributor.author | Rakshit, Bipul | - |
dc.contributor.author | Nandi, Pronoy | - |
dc.contributor.author | Basu, Raktima | - |
dc.contributor.author | Dhara, Sandip | - |
dc.contributor.author | Turchini, S. | - |
dc.contributor.author | Zema, N. | - |
dc.contributor.author | Manju, U. | - |
dc.contributor.author | Mahanti, Subhendra D. | - |
dc.contributor.author | Topwal, D. | - |
dc.date.accessioned | 2023-12-21T16:37:49Z | - |
dc.date.available | 2023-12-21T16:37:49Z | - |
dc.date.created | 2021-02-19 | - |
dc.date.issued | 2020-12 | - |
dc.description.abstract | We report on detailed structural, electronic, and magnetic studies of GdMn1-xCrxO3 for Cr doping levels; x = 0 <= x <= 1. X-ray diffraction studies suggest that GdMn0.5Cr0.5O3 has a monoclinic P2(1)/b structure with alternate arrangements of Mn and Cr atoms along the [001] direction. In the solid solutions, the Jahn-Teller distortion associated with Mn3+ ions gives rise to major changes in the be-plane sublattice and also an effective orbital ordering in the ab plane, which persist up to compositions x similar to 0.35. These distinct features in the lattice and orbital degrees of freedom are also correlated with be-plane anisotropy of the local Gd environment. A gradual evolution of electronic states with doping is also clearly seen in O K-edge x-ray absorption spectra. Evidence of magnetization reversal in field-cooled-cooling mode for x >= 0.35 coinciding with the Jahn-Teller crossover suggests a close correlation between magnetic interaction and structural distortion. These observations indicate a strong entanglement between lattice, spin, electronic, and orbital degrees of freedom. The nonmonotonic variation of remnant magnetization can be explained by doping-induced modification of magnetic interactions. Density-functional-theory calculations are consistent with layer-by-layer-type arrangements of Cr ions and Mn ions with ferromagnetic (antiferomagnetic) coupling between Mn (Cr) ions for intermediate compounds (x = 0.5). For x = 0.25 compositions, we found alternate layers of Mn and mixed Mn-Cr atoms stacked along the c axis with intralayer ferromagnetic coupling and interlayer antiferromagnetic coupling. For x = 0.75 compositions, there exists strong antiferomagnetic coupling between half-filled t(2g) orbitals of in-plane Cr ions along with a feromagnetic Mn-Cr coupling. | - |
dc.identifier.bibliographicCitation | PHYSICAL REVIEW B, v.102, no.24 | - |
dc.identifier.doi | 10.1103/PhysRevB.102.245120 | - |
dc.identifier.issn | 2469-9950 | - |
dc.identifier.scopusid | 2-s2.0-85098208706 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/50055 | - |
dc.identifier.url | https://journals.aps.org/prb/abstract/10.1103/PhysRevB.102.245120 | - |
dc.identifier.wosid | 000599092700001 | - |
dc.language | 영어 | - |
dc.publisher | AMER PHYSICAL SOC | - |
dc.title | Site substitution in GdMnO3: Effects on structural, electronic, and magnetic properties | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed Matter | - |
dc.relation.journalResearchArea | Materials Science; Physics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | METAL-INSULATOR-TRANSITION | - |
dc.subject.keywordPlus | PEROVSKITE | - |
dc.subject.keywordPlus | CHARGE | - |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Tel : 052-217-1404 / Email : scholarworks@unist.ac.kr
Copyright (c) 2023 by UNIST LIBRARY. All rights reserved.
ScholarWorks@UNIST was established as an OAK Project for the National Library of Korea.