{"id":1373,"date":"2023-09-28T18:53:46","date_gmt":"2023-09-28T16:53:46","guid":{"rendered":"https:\/\/www.ub.edu\/functionalmaterials\/?page_id=1373"},"modified":"2023-10-16T18:55:15","modified_gmt":"2023-10-16T16:55:15","slug":"multicalorics-mendive","status":"publish","type":"page","link":"https:\/\/www.ub.edu\/functionalmaterials\/es\/multicalorics-mendive\/","title":{"rendered":"Multicalorics Mendive"},"content":{"rendered":"

[et_pb_section fb_built=\u00bb1″ fullwidth=\u00bbon\u00bb admin_label=\u00bbSection\u00bb _builder_version=\u00bb4.20.4″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_fullwidth_header title=\u00bbRefrigeraci\u00f3n multical\u00f3rica mejorada por interacciones multilocales\u00bb subhead=\u00bbTeor\u00eda y experimentos\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb title_font=\u00bb|700|||||||\u00bb title_font_size=\u00bb60px\u00bb subhead_font=\u00bb|300|||||||\u00bb subhead_font_size=\u00bb60px\u00bb subhead_line_height=\u00bb1.1em\u00bb use_background_color_gradient=\u00bbon\u00bb background_color_gradient_type=\u00bbcircular\u00bb background_color_gradient_direction_radial=\u00bbtop left\u00bb background_color_gradient_stops=\u00bbrgba(11,84,105,0.73) 0%|rgba(51,18,35,0.69) 32%|rgba(163,140,98,0.69) 56%|rgba(5,154,178,0.66) 87%\u00bb background_color_gradient_overlays_image=\u00bbon\u00bb background_image=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/04\/PID2020-ACMUMA-imatge3.webp\u00bb min_height=\u00bb50vh\u00bb custom_padding=\u00bb15vh||15vh||false|false\u00bb custom_css_header_container=\u00bb||\u00bb custom_css_title=\u00bbmax-width:40%;\u00bb custom_css_subtitle=\u00bbmax-width:70%;\u00bb global_colors_info=\u00bb{}\u00bb custom_css_header_container_last_edited=\u00bbon|desktop\u00bb custom_css_title_last_edited=\u00bbon|phone\u00bb custom_css_title_tablet=\u00bbmax-width:80%;\u00bb custom_css_title_phone=\u00bbmax-width:100%;\u00bb custom_css_header_container_tablet=\u00bb||\u00bb custom_css_header_container_phone=\u00bb||\u00bb][\/et_pb_fullwidth_header][\/et_pb_section][et_pb_section fb_built=\u00bb1″ admin_label=\u00bbsection\u00bb _builder_version=\u00bb4.16″ global_colors_info=\u00bb{}\u00bb][et_pb_row admin_label=\u00bbrow\u00bb _builder_version=\u00bb4.16″ background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.16″ custom_padding=\u00bb|||\u00bb global_colors_info=\u00bb{}\u00bb custom_padding__hover=\u00bb|||\u00bb][et_pb_text admin_label=\u00bbText\u00bb module_class=\u00bbdestacat\u00bb _builder_version=\u00bb4.21.0″ text_font=\u00bb|300|||||||\u00bb background_size=\u00bbinitial\u00bb background_position=\u00bbtop_left\u00bb background_repeat=\u00bbrepeat\u00bb text_orientation=\u00bbcenter\u00bb hover_enabled=\u00bb0″ global_colors_info=\u00bb{}\u00bb sticky_enabled=\u00bb0″]<\/p>\n

Mejorar la eficiencia y reducir la huella contaminante de los mecanismos de refrigeraci\u00f3n actuales son una necesidad urgente para adaptarse al cambio clim\u00e1tico y responder a las demandas de alta energ\u00eda que nos enfrentamos en la actualidad.<\/strong><\/p>\n

Una soluci\u00f3n a esta empresa es la utilizaci\u00f3n de materiales magn\u00e9ticos que presenten grandes cambios de temperatura y entrop\u00eda generados bajo la aplicaci\u00f3n de est\u00edmulos externos. Este efecto, llamado efecto cal\u00f3rico<\/em>, es la base de un campo de investigaci\u00f3n innovador que aspira a crear nuevas tecnolog\u00edas refrigerantes de estado s\u00f3lido eficientes y respetuosas con el medio ambiente.<\/p>\n

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En las \u00faltimas d\u00e9cadas, la refrigeraci\u00f3n basada en materiales magn\u00e9ticos se ha convertido en un campo de investigador activo y prometedor. Sin embargo, esta tecnolog\u00eda todav\u00eda no es atractiva comercialmente, ya que requiere el uso de costosos imanes permanentes y muchos de los materiales magn\u00e9ticos considerados sufren de fatiga mec\u00e1nica cuando son sometidos a ciclos refrigerantes.<\/p>\n

Este proyecto focaliza en una nueva v\u00eda para reducir dr\u00e1sticamente los costes y mejorar la vida \u00fatil del refrigerante: La utilizaci\u00f3n de materiales magn\u00e9ticos que muestran simult\u00e1neamente efectos cal\u00f3ricos generados tanto por campos magn\u00e9ticos como tensiones mec\u00e1nicas, es decir, efectos multical\u00f3ricos.<\/strong> El objetivo es obtener la combinaci\u00f3n \u00f3ptima de est\u00edmulos magn\u00e9ticos y mec\u00e1nicos para crear un enfriamiento m\u00e1ximo.<\/p>\n

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El objetivo del proyecto MULTICALORICS es la investigaci\u00f3n te\u00f3rica y experimental de diferentes materiales magn\u00e9ticos refrigerantes utilizando la aplicaci\u00f3n de campos magn\u00e9ticos y tensiones mec\u00e1nicas<\/p>\n

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Concepto de la teor\u00eda del momento local desordenado (DLM) [1]. C\u00e1lculos de DFT restringidos magn\u00e9ticamente a diferentes orientaciones magn\u00e9ticas a escala at\u00f3mica se utilizan para describir excitaciones t\u00e9rmicas. El sistema magn\u00e9tico est\u00e1 totalmente ordenado en el cero absoluto (a), en tanto que se desordena a medida que la temperatura aumenta (b,c).<\/p>\n

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La teor\u00eda funcional de la densidad (density functional theory, DFT) es actualmente una de las principales herramientas para la modelizaci\u00f3n de materiales desde primeros principios. Sin embargo, la versi\u00f3n est\u00e1ndar de DFT normalmente no incluye efectos de temperatura y, por tanto, encuentra dificultades a la hora de describir la termodin\u00e1mica de los efectos (multi-)cal\u00f3ricos. En este proyecto utilizamos la teor\u00eda del momento local desordenado (DLM), uno de los pocos marcos te\u00f3ricos existentes que expande DFT para modelar materiales magn\u00e9ticos a temperatura finita desde primeros principios [1,2,3].<\/strong><\/p>\n

Las propiedades magn\u00e9ticas de un s\u00f3lido son dictaminadas por las interacciones magn\u00e9ticas entre los \u00e1tomos, las cuales dependen de sus posiciones y distancias dando lugar a fuertes acoplamientos del magnetismo con la estructura cristalina del material. Por esta raz\u00f3n, las vibraciones de los \u00e1tomos causadas por excitaciones t\u00e9rmicas, es decir, los fonones, tambi\u00e9n pueden afectar al magnetismo y a consecuentes efectos cal\u00f3ricos. Sin embargo, la versi\u00f3n actual de nuestra herramienta computacional no incorpora esta interacci\u00f3n. Un objetivo principal del proyecto MULTICALORICS es el desarrollo de un nuevo m\u00e9todo para calcular el effecto de los phonones en el magnetismo i la refrigeraci\u00f3n cal\u00f2rica.<\/strong><\/p>\n

Investigaciones previas a este proyecto han demostrado un potencial acoplamiento de los phonones con el magnetismo en los materiales Mn3AN, donde \u00abA\u00bb puede ser una combinaci\u00f3n de metales de transici\u00f3n y elementos semiconductores. Mn3AN es una famosa clase de materiales magn\u00e9ticos gracias a sus efectos cal\u00f3ricos gigantescos y su posible manipulaci\u00f3n mediante dopaje qu\u00edmico [4,5]. En el proyecto MULTICALORICS tenemos la ambici\u00f3n de predecir las mejores condiciones multical\u00f3ricas en estos materiales para su posterior an\u00e1lisis experimental en el grupo de materiales funcionales y transiciones de fase de la UB.<\/strong><\/p>\n

[1] B. Gyorffy et al., J. Phys. F: Metal Phys. 15<\/strong>, 1337 (1985)
[2] E. Mendive-Tapia and J. Staunton, Phys. Rev. B 99<\/strong>, 144424 (2019)
[3] E. Mendive-Tapia, J. Neugebauer, and T. Hickel, Phys. Rev. B 105<\/strong>, 064425 (2022)
[4] D. Matsunami et al., Nature Materials 14<\/strong>, 73 (2015)<\/span>
[5] D. Boldrin, E. Mendive-Tapia et al., Phys. Rev. X 8<\/strong>, 041035 (2018)<\/span><\/span><\/p>\n

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MULTICALORICS est\u00e1 compuesto de tres tareas principales:<\/strong><\/p>\n

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Comprensi\u00f3n y predicci\u00f3n de nuevos materiales multical\u00f3ricos mediante c\u00e1lculos des de primeros principios.<\/strong><\/p>\n

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Desarrollo de una nueva herramienta computacional que incluya el acoplamiento de los phonons con el magnetismo.<\/strong><\/p>\n

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Creaci\u00f3n de nuevos materiales multical\u00f3ricos y su estudio experimental.<\/strong><\/p>\n

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MULTICALORICS focaliza en el desarrollo de nuevas herramientas computacionales para guiar experimentos en el entendimiento y descubrimiento de materiales multical\u00f3ricos con rendimiento superior<\/p>\n

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Si tienes inter\u00e9s en conocer m\u00e1s detalles sobre el proyecto MULTICALORICS y su aplicaci\u00f3n, env\u00eda un correo a
e.mendive.tapia@ub.edu<\/a><\/strong><\/p>\n

[\/et_pb_text][et_pb_button button_url=\u00bb@ET-DC@eyJkeW5hbWljIjp0cnVlLCJjb250ZW50IjoicG9zdF9saW5rX3VybF9wYWdlIiwic2V0dGluZ3MiOnsicG9zdF9pZCI6IjI0NiJ9fQ==@\u00bb button_text=\u00bbInformaci\u00f3n de contacto\u00bb button_alignment=\u00bbcenter\u00bb _builder_version=\u00bb4.21.0″ _dynamic_attributes=\u00bbbutton_url\u00bb _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00bb1″ module_class=\u00bbmembres_equip\u00bb _builder_version=\u00bb4.20.4″ _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb0px||||false|false\u00bb custom_padding=\u00bb0px||||false|false\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_row _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_padding=\u00bb||0px||false|false\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.20.4″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_text module_class=\u00bbtitular\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_padding=\u00bb50px||||false|false\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n

Equipo de proyecto<\/h2>\n

[\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row column_structure=\u00bb1_4,1_4,1_4,1_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb1_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_team_member name=\u00bbEduardo Mendive Tapia\u00bb position=\u00bbInvestigator Principal\u00bb image_url=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/04\/2023-eduardo-mendive-23318-S-1.jpg\u00bb module_class=\u00bbcolor1″ _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_team_member][\/et_pb_column][et_pb_column type=\u00bb1_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_team_member name=\u00bbEduard Vives Santa-Eulalia\u00bb position=\u00bbCoordinador e Investigator\u00bb image_url=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/04\/2023-eduard-vives-23318-S.jpg\u00bb module_class=\u00bbcolor2″ _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_team_member][\/et_pb_column][et_pb_column type=\u00bb1_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_team_member name=\u00bbLluis Ma\u00f1osa Carrera\u00bb position=\u00bbInvestigador\u00bb image_url=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/04\/2023-llui-s-man-osa-23318-S.jpg\u00bb module_class=\u00bbcolor3″ _builder_version=\u00bb4.20.4″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_team_member][\/et_pb_column][et_pb_column type=\u00bb1_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_team_member name=\u00bbEnric Stern Taulats\u00bb position=\u00bbInvestigador\u00bb image_url=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/04\/2023-enric-stern-23318-S.jpg\u00bb module_class=\u00bbcolor4″ _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_team_member][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00bb1″ module_class=\u00bbmembres_equip\u00bb _builder_version=\u00bb4.20.4″ _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb0px||||false|false\u00bb custom_padding=\u00bb0px||||false|false\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_row _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_padding=\u00bb||0px||false|false\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.20.4″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_text module_class=\u00bbtitular\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb-87px||||false|false\u00bb custom_padding=\u00bb50px||||false|false\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n

Colaboraciones<\/span><\/h2>\n

[\/et_pb_text][et_pb_text _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_margin=\u00bb-100px||||false|false\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n

    \n
  • Julie B. Staunton (university of Warwick, UK)<\/li>\n
  • Christopher E. Patrick (university of Oxford, UK)<\/li>\n
  • David Boldrin (university of Glasgow, UK)<\/li>\n
  • J\u00f6rg Neugebauer (Max-Planck-Institut f\u00fcr Eisenforschung, Germany)<\/li>\n
  • Tilmann Hickel (Max-Planck-Institut f\u00fcr Eisenforschung, Germany)<\/li>\n<\/ul>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00bb1″ _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb use_background_color_gradient=\u00bbon\u00bb background_color_gradient_direction=\u00bb-90deg\u00bb background_color_gradient_stops=\u00bbrgba(188,134,27,0.19) 0%|rgba(64,127,137,0.24) 97%\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_row _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_text module_class=\u00bbtitular\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_padding=\u00bb||0px||false|false\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n

    Publicaciones destacadas<\/h2>\n

    [\/et_pb_text][et_pb_text module_class=\u00bblletra_gran\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb link_option_url=\u00bbhttps:\/\/iopscience.iop.org\/article\/10.1088\/2515-7655\/acd027\/meta\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n

    Eduardo Mendive-Tapia, Christopher E. Patrick, Tilmann Hickel, J\u00f6rg Neugebauer, and Julie B. Staunton.
    Quantification of electronic and magnetoelastic mechanisms of first-order magnetic phase transitions from first principles: application to caloric effects in La(FexSi1-x)13.<\/em>
    J. Phys. Energy 5<\/strong>, 034004 (2023)<\/p>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][\/et_pb_section][et_pb_section fb_built=\u00bb1″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_row _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_text module_class=\u00bbtitular\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_padding=\u00bb||0px||false|false\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n

    Con el soporte de:<\/p>\n

    [\/et_pb_text][et_pb_text admin_label=\u00bbText\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb text_orientation=\u00bbcenter\u00bb global_colors_info=\u00bb{}\u00bb]<\/p>\n

    Proyecto MULTICALORICS – 101025767 financiado por:<\/p>\n

    [\/et_pb_text][\/et_pb_column][\/et_pb_row][et_pb_row module_class=\u00bblogos\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb custom_padding=\u00bb||||false|false\u00bb border_width_top=\u00bb2px\u00bb border_color_top=\u00bb#BC861B\u00bb border_width_bottom=\u00bb2px\u00bb border_color_bottom=\u00bb#BC861B\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_column type=\u00bb4_4″ _builder_version=\u00bb4.20.0″ _module_preset=\u00bbdefault\u00bb global_colors_info=\u00bb{}\u00bb][et_pb_image src=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/09\/European_Commission.svg_.png\u00bb title_text=\u00bbEuropean_Commission.svg\u00bb align=\u00bbcenter\u00bb admin_label=\u00bbImage\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb width=\u00bb30%\u00bb max_width=\u00bb400px\u00bb module_alignment=\u00bbcenter\u00bb height=\u00bb159px\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_image src=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/09\/marie_curie_logo.png\u00bb title_text=\u00bbmarie_curie_logo\u00bb align=\u00bbcenter\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb width=\u00bb30%\u00bb max_width=\u00bb400px\u00bb module_alignment=\u00bbcenter\u00bb height=\u00bb159px\u00bb max_height=\u00bb1000px\u00bb custom_margin=\u00bb|18px||-48px|false|false\u00bb custom_padding=\u00bb|99px||||\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][et_pb_image src=\u00bbhttps:\/\/www.ub.edu\/functionalmaterials\/wp-content\/uploads\/2023\/09\/fbg.jpg\u00bb title_text=\u00bbfbg\u00bb _builder_version=\u00bb4.21.0″ _module_preset=\u00bbdefault\u00bb width=\u00bb21%\u00bb max_width=\u00bb400px\u00bb module_alignment=\u00bbcenter\u00bb height=\u00bb187px\u00bb custom_margin=\u00bb|||-21px|false|false\u00bb global_colors_info=\u00bb{}\u00bb][\/et_pb_image][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"

    Mejorar la eficiencia y reducir la huella contaminante de los mecanismos de refrigeraci\u00f3n actuales son una necesidad urgente para adaptarse al cambio clim\u00e1tico y responder a las demandas de alta energ\u00eda que nos enfrentamos en la actualidad. 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