Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15
Inelastic neutron scattering experiments were performed on polycrystalline samples of NdFeAsO0.85F0.15 over a wide temperature range (3 K–250 K). Based on the analysis of the experimental data, a Nd3+ CF energy level scheme is proposed to give a consistent explanation about the observed CF transitio...
Main Authors: | , , , , , , , |
---|---|
Format: | Article |
Language: | English |
Published: |
Hindawi Limited
2015-01-01
|
Series: | Advances in Condensed Matter Physics |
Online Access: | http://dx.doi.org/10.1155/2015/605160 |
id |
doaj-816ac6622c9b4572b833cd7892b9e8e7 |
---|---|
record_format |
Article |
spelling |
doaj-816ac6622c9b4572b833cd7892b9e8e72020-11-25T00:12:50ZengHindawi LimitedAdvances in Condensed Matter Physics1687-81081687-81242015-01-01201510.1155/2015/605160605160Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15Peng Cheng0Wei Bao1Sergey Danilkin2Tiesong Zhao3Jieming Sheng4Juanjuan Liu5Wei Luo6Jinchen Wang7Department of Physics, Renmin University of China, Beijing 100872, ChinaDepartment of Physics, Renmin University of China, Beijing 100872, ChinaBragg Institute, Australian Nuclear Science and Technology Organization, Locked Bag 2001, Kirrawee DC, NSW 2232, AustraliaDepartment of Physics, Renmin University of China, Beijing 100872, ChinaDepartment of Physics, Renmin University of China, Beijing 100872, ChinaDepartment of Physics, Renmin University of China, Beijing 100872, ChinaDepartment of Physics, Renmin University of China, Beijing 100872, ChinaDepartment of Physics, Renmin University of China, Beijing 100872, ChinaInelastic neutron scattering experiments were performed on polycrystalline samples of NdFeAsO0.85F0.15 over a wide temperature range (3 K–250 K). Based on the analysis of the experimental data, a Nd3+ CF energy level scheme is proposed to give a consistent explanation about the observed CF transitions. The observed extra ground-state CF transitions could not be simply explained by the transitions between five Kramers doublets split from the Nd3+ 4I9/2 ground state in the C4v point symmetry. A reliable explanation would be a superposition of crystal fields due to different local symmetries around the Nd3+ ions induced by the fluorine doping.http://dx.doi.org/10.1155/2015/605160 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Peng Cheng Wei Bao Sergey Danilkin Tiesong Zhao Jieming Sheng Juanjuan Liu Wei Luo Jinchen Wang |
spellingShingle |
Peng Cheng Wei Bao Sergey Danilkin Tiesong Zhao Jieming Sheng Juanjuan Liu Wei Luo Jinchen Wang Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15 Advances in Condensed Matter Physics |
author_facet |
Peng Cheng Wei Bao Sergey Danilkin Tiesong Zhao Jieming Sheng Juanjuan Liu Wei Luo Jinchen Wang |
author_sort |
Peng Cheng |
title |
Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15 |
title_short |
Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15 |
title_full |
Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15 |
title_fullStr |
Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15 |
title_full_unstemmed |
Inelastic Neutron Scattering Studies on the Crystal Field Excitations in Superconducting NdFeAsO0.85F0.15 |
title_sort |
inelastic neutron scattering studies on the crystal field excitations in superconducting ndfeaso0.85f0.15 |
publisher |
Hindawi Limited |
series |
Advances in Condensed Matter Physics |
issn |
1687-8108 1687-8124 |
publishDate |
2015-01-01 |
description |
Inelastic neutron scattering experiments were performed on polycrystalline samples of NdFeAsO0.85F0.15 over a wide temperature range (3 K–250 K). Based on the analysis of the experimental data, a Nd3+ CF energy level scheme is proposed to give a consistent explanation about the observed CF transitions. The observed extra ground-state CF transitions could not be simply explained by the transitions between five Kramers doublets split from the Nd3+ 4I9/2 ground state in the C4v point symmetry. A reliable explanation would be a superposition of crystal fields due to different local symmetries around the Nd3+ ions induced by the fluorine doping. |
url |
http://dx.doi.org/10.1155/2015/605160 |
work_keys_str_mv |
AT pengcheng inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 AT weibao inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 AT sergeydanilkin inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 AT tiesongzhao inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 AT jiemingsheng inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 AT juanjuanliu inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 AT weiluo inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 AT jinchenwang inelasticneutronscatteringstudiesonthecrystalfieldexcitationsinsuperconductingndfeaso085f015 |
_version_ |
1725397250859859968 |