Unveiling the hidden entropy in ZnFe2O4
13 pags., 9 figs., 2 tabs.
| Autores: | , , , , , , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2022 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/264739 |
| Acceso en línea: | http://hdl.handle.net/10261/264739 https://api.elsevier.com/content/abstract/scopus_id/85124247383 |
| Access Level: | acceso abierto |
| Palabra clave: | Calorimetry Hidden entropy Neutron diffraction Spin disorder Zinc ferrite |
| id |
ES_fdd1706baebf84f362e5dedd2185cb5e |
|---|---|
| oai_identifier_str |
oai:digital.csic.es:10261/264739 |
| network_acronym_str |
ES |
| network_name_str |
España |
| repository_id_str |
|
| spelling |
Unveiling the hidden entropy in ZnFe2O4Cobos, Miguel ÁngelHernando, AntonioMarco, J.F.Puente-Orench, InésJiménez, José AntonioLlorente, IreneGarcía Escorial, AsunciónPresa, Patricia de laCalorimetryHidden entropyNeutron diffractionSpin disorderZinc ferrite13 pags., 9 figs., 2 tabs.The antiferromagnetic (AFM) transition of the normal ZnFe2O4 has been intensively investigated with results showing a lack of long-range order, spin frustrations, and a "hidden" entropy in the calorimetric properties for inversion degrees δ ≈ 0 or δ = 0. As δ drastically impacts the magnetic properties, it is logical to question how a δ value slightly different from zero can affect the magnetic properties. In this work, (Zn1-δFeδ)[ZnδFe2-δ]O4 with δ = 0.05 and δ = 0.27 have been investigated with calorimetry at different applied fields. It is shown that a δ value as small as 0.05 may affect 40% of the unit cells, which become locally ferrimagnetic (FiM) and coexists with AFM and spin disordered regions. The spin disorder disappears under an applied field of 1 T. Mossbauer spectroscopy confirms the presence of a volume fraction with a low hyperfine field that can be ascribed to these spin disordered regions. The volume fractions of the three magnetic phases estimated from entropy and hyperfine measurements are roughly coincident and correspond to approximately 1/3 for each of them. The "hidden" entropy is the zero point entropy different from 0. Consequently, the so-called "hidden" entropy can be ascribed to the frustrations of the spins at the interphase between the AFM-FiM phases due to having δ ≈ 0 instead of ideal δ = 0.The authors acknowledge ILL and the D1B-CRG (Ministerio de Ciencia, e Innovación, Spain) with proposal numbers CRG-2710, CRG-2797 and 5-31-274 2 for the beam time allocated at both the D1B and D2B instruments. This research has been funded by Spanish Ministries of Science Innovation and Universities and of Economy and Competitiveness by means of the AFORMAR (PID2019-109334RB), RTI2018-095303-B-C51 and RTI2018-095856-B-C21 projects. The support of the grants from the Community of Madrid numbers S2018/NMT-4381-MAT4.0-CM and P2018/NMT4321 is also recognizedPeer reviewedMultidisciplinary Digital Publishing InstituteMinisterio de Ciencia e Innovación (España)Ministerio de Ciencia, Innovación y Universidades (España)Ministerio de Economía y Competitividad (España)Comunidad de MadridAgencia Estatal de Investigación (España)Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72]202220222022info:eu-repo/semantics/articlehttp://purl.org/coar/resource_type/c_6501Publisher's versioninfo:eu-repo/semantics/publishedVersionhttp://hdl.handle.net/10261/264739https://api.elsevier.com/content/abstract/scopus_id/85124247383reponame:DIGITAL.CSIC. Repositorio Institucional del CSICinstname:Consejo Superior de Investigaciones Científicas (CSIC)Inglés#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109334RB-C31info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095303-B-C51info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095856-B-C21S2018/NMT-4381/MAT4.0-CMS2018/NMT-4321/NANOMAGCOST-CMMaterials (Basel, Switzerland)https://doi.org/10.3390/ma15031198Síinfo:eu-repo/semantics/openAccessoai:digital.csic.es:10261/2647392026-05-22T06:33:51Z |
| dc.title.none.fl_str_mv |
Unveiling the hidden entropy in ZnFe2O4 |
| title |
Unveiling the hidden entropy in ZnFe2O4 |
| spellingShingle |
Unveiling the hidden entropy in ZnFe2O4 Cobos, Miguel Ángel Calorimetry Hidden entropy Neutron diffraction Spin disorder Zinc ferrite |
| title_short |
Unveiling the hidden entropy in ZnFe2O4 |
| title_full |
Unveiling the hidden entropy in ZnFe2O4 |
| title_fullStr |
Unveiling the hidden entropy in ZnFe2O4 |
| title_full_unstemmed |
Unveiling the hidden entropy in ZnFe2O4 |
| title_sort |
Unveiling the hidden entropy in ZnFe2O4 |
| dc.creator.none.fl_str_mv |
Cobos, Miguel Ángel Hernando, Antonio Marco, J.F. Puente-Orench, Inés Jiménez, José Antonio Llorente, Irene García Escorial, Asunción Presa, Patricia de la |
| author |
Cobos, Miguel Ángel |
| author_facet |
Cobos, Miguel Ángel Hernando, Antonio Marco, J.F. Puente-Orench, Inés Jiménez, José Antonio Llorente, Irene García Escorial, Asunción Presa, Patricia de la |
| author_role |
author |
| author2 |
Hernando, Antonio Marco, J.F. Puente-Orench, Inés Jiménez, José Antonio Llorente, Irene García Escorial, Asunción Presa, Patricia de la |
| author2_role |
author author author author author author author |
| dc.contributor.none.fl_str_mv |
Ministerio de Ciencia e Innovación (España) Ministerio de Ciencia, Innovación y Universidades (España) Ministerio de Economía y Competitividad (España) Comunidad de Madrid Agencia Estatal de Investigación (España) Consejo Superior de Investigaciones Científicas [https://ror.org/02gfc7t72] |
| dc.subject.none.fl_str_mv |
Calorimetry Hidden entropy Neutron diffraction Spin disorder Zinc ferrite |
| topic |
Calorimetry Hidden entropy Neutron diffraction Spin disorder Zinc ferrite |
| description |
13 pags., 9 figs., 2 tabs. |
| publishDate |
2022 |
| dc.date.none.fl_str_mv |
2022 2022 2022 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article http://purl.org/coar/resource_type/c_6501 Publisher's version info:eu-repo/semantics/publishedVersion |
| format |
article |
| status_str |
publishedVersion |
| dc.identifier.none.fl_str_mv |
http://hdl.handle.net/10261/264739 https://api.elsevier.com/content/abstract/scopus_id/85124247383 |
| url |
http://hdl.handle.net/10261/264739 https://api.elsevier.com/content/abstract/scopus_id/85124247383 |
| dc.language.none.fl_str_mv |
Inglés |
| language_invalid_str_mv |
Inglés |
| dc.relation.none.fl_str_mv |
#PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/PID2019-109334RB-C31 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095303-B-C51 info:eu-repo/grantAgreement/AEI/Plan Estatal de Investigación Científica y Técnica y de Innovación 2017-2020/RTI2018-095856-B-C21 S2018/NMT-4381/MAT4.0-CM S2018/NMT-4321/NANOMAGCOST-CM Materials (Basel, Switzerland) https://doi.org/10.3390/ma15031198 Sí |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
| publisher.none.fl_str_mv |
Multidisciplinary Digital Publishing Institute |
| dc.source.none.fl_str_mv |
reponame:DIGITAL.CSIC. Repositorio Institucional del CSIC instname:Consejo Superior de Investigaciones Científicas (CSIC) |
| instname_str |
Consejo Superior de Investigaciones Científicas (CSIC) |
| reponame_str |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| collection |
DIGITAL.CSIC. Repositorio Institucional del CSIC |
| repository.name.fl_str_mv |
|
| repository.mail.fl_str_mv |
|
| _version_ |
1869425601387954176 |
| score |
15.81155 |