Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model
Descripción del Articulo
D. R. would like to thank the Condensed Matter Research Group of San Marcos University, where part of this work was performed. G. C. -S., H. S. T., and R. M. E. -B. are grateful to National Council of Science and Technology (CONCYTEC) from Peru for the financial support through the Doctoral Program...
| Autores: | , , , , |
|---|---|
| Formato: | artículo |
| Fecha de Publicación: | 2019 |
| Institución: | Consejo Nacional de Ciencia Tecnología e Innovación |
| Repositorio: | CONCYTEC-Institucional |
| Lenguaje: | inglés |
| OAI Identifier: | oai:repositorio.concytec.gob.pe:20.500.12390/521 |
| Enlace del recurso: | https://hdl.handle.net/20.500.12390/521 https://doi.org/10.1016/j.jmmm.2018.08.072 |
| Nivel de acceso: | acceso abierto |
| Materia: | Spin liquid state Fermi liquids Modulation Quantum theory Conduction electrons Dispersion relations Finite temperatures Mean-field calculations Modulation effects Paramagnetic phase Quantum critical points Specific heat https://purl.org/pe-repo/ocde/ford#1.03.00 |
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oai:repositorio.concytec.gob.pe:20.500.12390/521 |
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CONC |
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CONCYTEC-Institucional |
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4689 |
| dc.title.none.fl_str_mv |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model |
| title |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model |
| spellingShingle |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model Reyes D. Spin liquid state Fermi liquids Modulation Quantum theory Conduction electrons Dispersion relations Finite temperatures Mean-field calculations Modulation effects Paramagnetic phase Quantum critical points Specific heat https://purl.org/pe-repo/ocde/ford#1.03.00 |
| title_short |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model |
| title_full |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model |
| title_fullStr |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model |
| title_full_unstemmed |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model |
| title_sort |
Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model |
| author |
Reyes D. |
| author_facet |
Reyes D. Cuba-Supanta G. Tarazona H.S. Landauro C.V. Espinoza-Bernardo R.M. |
| author_role |
author |
| author2 |
Cuba-Supanta G. Tarazona H.S. Landauro C.V. Espinoza-Bernardo R.M. |
| author2_role |
author author author author |
| dc.contributor.author.fl_str_mv |
Reyes D. Cuba-Supanta G. Tarazona H.S. Landauro C.V. Espinoza-Bernardo R.M. |
| dc.subject.none.fl_str_mv |
Spin liquid state |
| topic |
Spin liquid state Fermi liquids Modulation Quantum theory Conduction electrons Dispersion relations Finite temperatures Mean-field calculations Modulation effects Paramagnetic phase Quantum critical points Specific heat https://purl.org/pe-repo/ocde/ford#1.03.00 |
| dc.subject.es_PE.fl_str_mv |
Fermi liquids Modulation Quantum theory Conduction electrons Dispersion relations Finite temperatures Mean-field calculations Modulation effects Paramagnetic phase Quantum critical points Specific heat |
| dc.subject.ocde.none.fl_str_mv |
https://purl.org/pe-repo/ocde/ford#1.03.00 |
| description |
D. R. would like to thank the Condensed Matter Research Group of San Marcos University, where part of this work was performed. G. C. -S., H. S. T., and R. M. E. -B. are grateful to National Council of Science and Technology (CONCYTEC) from Peru for the financial support through the Doctoral Program for Peruvian Universities (Nro 218–2014-CONCYTEC). C. V. L. and D. R. are grateful to the Programa Nacional de Innovación para la Competitividad y Productividad of the Peruvian Agency Innovate Perú for financial support under contract number Nro. 457-PNICP-ECIP-2015. C. V. L. would also like to thanks the San Marcos University for partial financial support under project number B17130021. |
| publishDate |
2019 |
| dc.date.accessioned.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.available.none.fl_str_mv |
2024-05-30T23:13:38Z |
| dc.date.issued.fl_str_mv |
2019 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/article |
| format |
article |
| dc.identifier.uri.none.fl_str_mv |
https://hdl.handle.net/20.500.12390/521 |
| dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1016/j.jmmm.2018.08.072 |
| dc.identifier.scopus.none.fl_str_mv |
2-s2.0-85053023993 |
| url |
https://hdl.handle.net/20.500.12390/521 https://doi.org/10.1016/j.jmmm.2018.08.072 |
| identifier_str_mv |
2-s2.0-85053023993 |
| dc.language.iso.none.fl_str_mv |
eng |
| language |
eng |
| dc.relation.ispartof.none.fl_str_mv |
Journal of Magnetism and Magnetic Materials |
| dc.rights.none.fl_str_mv |
info:eu-repo/semantics/openAccess |
| eu_rights_str_mv |
openAccess |
| dc.publisher.none.fl_str_mv |
Elsevier B.V. |
| publisher.none.fl_str_mv |
Elsevier B.V. |
| dc.source.none.fl_str_mv |
reponame:CONCYTEC-Institucional instname:Consejo Nacional de Ciencia Tecnología e Innovación instacron:CONCYTEC |
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Consejo Nacional de Ciencia Tecnología e Innovación |
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CONCYTEC |
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CONCYTEC |
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CONCYTEC-Institucional |
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CONCYTEC-Institucional |
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Repositorio Institucional CONCYTEC |
| repository.mail.fl_str_mv |
repositorio@concytec.gob.pe |
| _version_ |
1839175531971477504 |
| spelling |
Publicationrp00837600rp00836600rp00839600rp00840600rp00838600Reyes D.Cuba-Supanta G.Tarazona H.S.Landauro C.V.Espinoza-Bernardo R.M.2024-05-30T23:13:38Z2024-05-30T23:13:38Z2019https://hdl.handle.net/20.500.12390/521https://doi.org/10.1016/j.jmmm.2018.08.0722-s2.0-85053023993D. R. would like to thank the Condensed Matter Research Group of San Marcos University, where part of this work was performed. G. C. -S., H. S. T., and R. M. E. -B. are grateful to National Council of Science and Technology (CONCYTEC) from Peru for the financial support through the Doctoral Program for Peruvian Universities (Nro 218–2014-CONCYTEC). C. V. L. and D. R. are grateful to the Programa Nacional de Innovación para la Competitividad y Productividad of the Peruvian Agency Innovate Perú for financial support under contract number Nro. 457-PNICP-ECIP-2015. C. V. L. would also like to thanks the San Marcos University for partial financial support under project number B17130021.In the present work we study the effect of the aperiodic exchange modulation on the spin gap at finite temperature as well as the specific heat of the Kondo necklace model in two and three dimensions. For this purpose, we use a representation for the localized and conduction electrons in terms of local Kondo singlet and triplet operators. A decoupling scheme on the double time Green’s functions is also used to find the dispersion relation for the excitations of the system. The influence of the aperiodic exchange modulation on the spin gap at low temperatures is discussed in the paramagnetic phase. Moreover, we investigate the specific heat as a function of the aperiodic exchange modulation at low temperatures in two cases: above the quantum critical point i.e., along the so-called non-Fermi liquid trajectory and in the Kondo spin liquid state. We have also compared our results with previous bond operator mean-field calculations.Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - ConcytecengElsevier B.V.Journal of Magnetism and Magnetic Materialsinfo:eu-repo/semantics/openAccessSpin liquid stateFermi liquids-1Modulation-1Quantum theory-1Conduction electrons-1Dispersion relations-1Finite temperatures-1Mean-field calculations-1Modulation effects-1Paramagnetic phase-1Quantum critical points-1Specific heat-1https://purl.org/pe-repo/ocde/ford#1.03.00-1Aperiodic exchange modulation effect on the specific heat in the Kondo necklace modelinfo:eu-repo/semantics/articlereponame:CONCYTEC-Institucionalinstname:Consejo Nacional de Ciencia Tecnología e Innovacióninstacron:CONCYTEC#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#20.500.12390/521oai:repositorio.concytec.gob.pe:20.500.12390/5212024-05-30 15:22:04.43http://purl.org/coar/access_right/c_14cbinfo:eu-repo/semantics/closedAccessmetadata only accesshttps://repositorio.concytec.gob.peRepositorio Institucional CONCYTECrepositorio@concytec.gob.pe#PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE##PLACEHOLDER_PARENT_METADATA_VALUE#<Publication xmlns="https://www.openaire.eu/cerif-profile/1.1/" id="4c79a519-f33f-4e3b-8246-b9b4ea814b0c"> <Type xmlns="https://www.openaire.eu/cerif-profile/vocab/COAR_Publication_Types">http://purl.org/coar/resource_type/c_1843</Type> <Language>eng</Language> <Title>Aperiodic exchange modulation effect on the specific heat in the Kondo necklace model</Title> <PublishedIn> <Publication> <Title>Journal of Magnetism and Magnetic Materials</Title> </Publication> </PublishedIn> <PublicationDate>2019</PublicationDate> <DOI>https://doi.org/10.1016/j.jmmm.2018.08.072</DOI> <SCP-Number>2-s2.0-85053023993</SCP-Number> <Authors> <Author> <DisplayName>Reyes D.</DisplayName> <Person id="rp00837" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Cuba-Supanta G.</DisplayName> <Person id="rp00836" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Tarazona H.S.</DisplayName> <Person id="rp00839" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Landauro C.V.</DisplayName> <Person id="rp00840" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> <Author> <DisplayName>Espinoza-Bernardo R.M.</DisplayName> <Person id="rp00838" /> <Affiliation> <OrgUnit> </OrgUnit> </Affiliation> </Author> </Authors> <Editors> </Editors> <Publishers> <Publisher> <DisplayName>Elsevier B.V.</DisplayName> <OrgUnit /> </Publisher> </Publishers> <Keyword>Spin liquid state</Keyword> <Keyword>Fermi liquids</Keyword> <Keyword>Modulation</Keyword> <Keyword>Quantum theory</Keyword> <Keyword>Conduction electrons</Keyword> <Keyword>Dispersion relations</Keyword> <Keyword>Finite temperatures</Keyword> <Keyword>Mean-field calculations</Keyword> <Keyword>Modulation effects</Keyword> <Keyword>Paramagnetic phase</Keyword> <Keyword>Quantum critical points</Keyword> <Keyword>Specific heat</Keyword> <Abstract>In the present work we study the effect of the aperiodic exchange modulation on the spin gap at finite temperature as well as the specific heat of the Kondo necklace model in two and three dimensions. For this purpose, we use a representation for the localized and conduction electrons in terms of local Kondo singlet and triplet operators. A decoupling scheme on the double time Green’s functions is also used to find the dispersion relation for the excitations of the system. The influence of the aperiodic exchange modulation on the spin gap at low temperatures is discussed in the paramagnetic phase. Moreover, we investigate the specific heat as a function of the aperiodic exchange modulation at low temperatures in two cases: above the quantum critical point i.e., along the so-called non-Fermi liquid trajectory and in the Kondo spin liquid state. We have also compared our results with previous bond operator mean-field calculations.</Abstract> <Access xmlns="http://purl.org/coar/access_right" > </Access> </Publication> -1 |
| score |
13.448654 |
Nota importante:
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
La información contenida en este registro es de entera responsabilidad de la institución que gestiona el repositorio institucional donde esta contenido este documento o set de datos. El CONCYTEC no se hace responsable por los contenidos (publicaciones y/o datos) accesibles a través del Repositorio Nacional Digital de Ciencia, Tecnología e Innovación de Acceso Abierto (ALICIA).
