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Fenómenos críticos de un ferrimagneto de momentos magnéticos 3/2 y 5/2: tratamiento monte carlo

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dc.contributor.advisorEspriella Vélez, Nicolás De la
dc.contributor.authorFerrer Bettín, Francisco Javier
dc.coverage.spatialMontería, Córdoba
dc.date.accessioned2020-11-13T15:09:41Zspa
dc.date.available2020-11-13T15:09:41Zspa
dc.date.issued2020-11-12spa
dc.description.abstractEn este trabajo han sido estudiados por simulaciones Monte Carlo (MC) los comportamientos críticos de primer orden y de compensación de espín en un sistema de Ising ferrimagnético que consta de espines S = 3/2 y Q = 5/2 alternados en una red cuadrada. El sistema está definido por un Hamiltoniano (Ɦ) que contiene interacciones ferromagnéticas a segundos vecinos de la red entre espines S (J'2) y espines Q (J'3), así como también campos de anisotropía iónica (D'1, D'2) y un campo magnético externo (h'). Se analizan en detalle los efectos de los campo cristalinos D'1 y magnético (h') sobre los fenómenos críticos, de doble transición de primer orden y de compensación. Encontramos que la existencia de una doble transición de fase de primer orden depende de la temperatura y la intensidad de h'.spa
dc.description.degreelevelPregradospa
dc.description.degreenameFísico(a)spa
dc.description.modalityTrabajo de Investigación/Extensiónspa
dc.description.tableofcontentsIntroducción ................................................................................................................ 1spa
dc.description.tableofcontents2. Sistemas magnéticos y modelo de Ising de espines mixtos S = 3=2 y Q = 5=2 ……………………………………………………...............................................................…………… 4spa
dc.description.tableofcontents2.1. Momentos magnéticos de los átomos ..............................................….………… 4 spa
dc.description.tableofcontents2.1.1. Magnetización ........................................................................….…………..…….... 7spa
dc.description.tableofcontents2.1.2. Inducción Magnética. ....................................................................................... 7spa
dc.description.tableofcontents2.1.3. Permeabilidad y Susceptibilidad Magnética. ...…………................................. 7spa
dc.description.tableofcontents2.2. Materiales Magnéticos. .…………………................................................................ 7spa
dc.description.tableofcontents2.2.1. Tipos de magnetismo en materiales .……………….......................................... 8spa
dc.description.tableofcontents2.2.2. Ferromagnetismo..………………………….............................................................. 8spa
dc.description.tableofcontents2.2.3. Antiferromagnetismo. ………………..………........................................................ 9spa
dc.description.tableofcontents2.2.4. Ferrimagnetismo .…………………….……............................................................... 9spa
dc.description.tableofcontents2.3. Ciclo de histéresis ……………….…........................................................................... 9spa
dc.description.tableofcontents2.3.1. Ciclos de histéresis magnética para materiales blandos y duros ............. 10spa
dc.description.tableofcontents2.4. Modelo de Ising .…………………….......................................................................... 11spa
dc.description.tableofcontents2.4.1. Modelo de Ising en una dimensión: solución exacta …............................... 11spa
dc.description.tableofcontents2.4.2. Modelo de Ising en dos dimensiones. ...............................……….…………...... 12spa
dc.description.tableofcontents2.5. Modelo de espines mixtos ...................................................................…...……... 14spa
dc.description.tableofcontents3. Resultados y análisis ...................................................................…...……............... 15spa
dc.description.tableofcontents3.1. Descripción del Hamiltoniano de interacción en la red de momentos 3=2 y 5=2 ................................................................................................................................ 15spa
dc.description.tableofcontents3.2. Magnetizaciones de las subredes mS, mQ y la total MT ………..................... 16spa
dc.description.tableofcontents3.3. Efectos del campo cristalino D .....…………………………………………………………... 16spa
dc.description.tableofcontents3.4. Efectos del campo magnético h’ .......................................…………................... 18spa
dc.description.tableofcontents4. Conclusiones ..……………………………….……............................................………….…. 23spa
dc.description.tableofcontentsBibliografía ……………………...............................................………………………………….. 24spa
dc.format.mimetypeapplication/pdfspa
dc.identifier.urihttps://repositorio.unicordoba.edu.co/handle/ucordoba/3596spa
dc.language.isospaspa
dc.publisherUniversidad de Córdobaspa
dc.publisher.facultyFacultad de Ciencias Básicasspa
dc.publisher.programFísicaspa
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dc.rightsCopyright Universidad de Córdoba, 2020spa
dc.rights.accessrightsinfo:eu-repo/semantics/closedAccessspa
dc.rights.creativecommonsAtribución-NoComercial-SinDerivadas 4.0 Internacional (CC BY-NC-ND 4.0)spa
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/spa
dc.subject.keywordsCompensation temperaturaseng
dc.subject.keywordsCritical temperaturaeng
dc.subject.keywordsHysteresiseng
dc.subject.keywordsPhase transitionseng
dc.subject.keywordsMonte Carlo simulationseng
dc.subject.keywordsIsing models of mixedeng
dc.subject.proposalTemperatura de compensaciónspa
dc.subject.proposalTemperatura críticaspa
dc.subject.proposalHistéresisspa
dc.subject.proposalTransición de fasespa
dc.subject.proposalSimulación Monte Carlospa
dc.subject.proposalModelo de Ising mixtospa
dc.titleFenómenos críticos de un ferrimagneto de momentos magnéticos 3/2 y 5/2: tratamiento monte carlospa
dc.typeTrabajo de grado - Pregradospa
dc.type.coarhttp://purl.org/coar/resource_type/c_7a1fspa
dc.type.contentTextspa
dc.type.driverinfo:eu-repo/semantics/bachelorThesisspa
dc.type.redcolhttps://purl.org/redcol/resource_type/TPspa
dc.type.versioninfo:eu-repo/semantics/submittedVersionspa
dspace.entity.typePublication
oaire.accessrightshttp://purl.org/coar/access_right/c_abf2spa
oaire.versionhttp://purl.org/coar/version/c_ab4af688f83e57aaspa
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