Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF
- Autores
- Freitas, Daniele C.; Garbarino, Gaston Leonel; Weht, Ruben Oscar; Sow, Amadou; Zhu, Xiyu; Han, Fei; Cheng, Peng; Ju, Jing; Wen, Hai Hu; Nunez Regueiro, Manuel Daniel
- Año de publicación
- 2014
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- We determine the pressure phase diagram of the 1111 compounds CaFeAsF and SrFeAsF, up to 20 GPa and down to 4 K by electrical resistivity measurements and the change of structure up to 40 GPa at room temperature. The antiferromagnetic transition temperature, as determined by the derivative peak, shows a minimum at ~5 GPa (10 GPa) for the Ca (Sr) compound. For CaFeAsF, superconductivity appears at this minimum, coincident with the development of a previously reported monoclinic phase. For SrFeAsF, where the orthorhombic and the monoclinic phase were reported to coexist, superconductivity exists above P≥1 GPa. Both phase diagrams can be scaled by a shift of ~10 GPa pressure at which the volume of SrFeAsF and that of CaFeAsF at ambient pressure coincide. The difference of our phase diagram with that of electron-doped 1111 samples is accounted for by hole doping under pressure, which we verified through electron band structure calculations.
Fil: Freitas, Daniele C.. Centre National de la Recherche Scientifique; Francia. Universite Joseph Fourier; Francia
Fil: Garbarino, Gaston Leonel. European Synchrotron Radiation Facility; Francia
Fil: Weht, Ruben Oscar. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sow, Amadou. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia
Fil: Zhu, Xiyu. Chinese Academy of Sciences; República de China
Fil: Han, Fei. Chinese Academy of Sciences; República de China
Fil: Cheng, Peng. Chinese Academy of Sciences; República de China
Fil: Ju, Jing. Chinese Academy of Sciences; República de China
Fil: Wen, Hai Hu. Chinese Academy of Sciences; República de China
Fil: Nunez Regueiro, Manuel Daniel. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia - Materia
-
Superconductivity
Electronic Properties
Pressure
Phase Diagram - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
- Repositorio
.jpg)
- Institución
- Consejo Nacional de Investigaciones Científicas y Técnicas
- OAI Identificador
- oai:ri.conicet.gov.ar:11336/33363
Ver los metadatos del registro completo
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Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsFFreitas, Daniele C.Garbarino, Gaston LeonelWeht, Ruben OscarSow, AmadouZhu, XiyuHan, FeiCheng, PengJu, JingWen, Hai HuNunez Regueiro, Manuel DanielSuperconductivityElectronic PropertiesPressurePhase Diagramhttps://purl.org/becyt/ford/1.3https://purl.org/becyt/ford/1We determine the pressure phase diagram of the 1111 compounds CaFeAsF and SrFeAsF, up to 20 GPa and down to 4 K by electrical resistivity measurements and the change of structure up to 40 GPa at room temperature. The antiferromagnetic transition temperature, as determined by the derivative peak, shows a minimum at ~5 GPa (10 GPa) for the Ca (Sr) compound. For CaFeAsF, superconductivity appears at this minimum, coincident with the development of a previously reported monoclinic phase. For SrFeAsF, where the orthorhombic and the monoclinic phase were reported to coexist, superconductivity exists above P≥1 GPa. Both phase diagrams can be scaled by a shift of ~10 GPa pressure at which the volume of SrFeAsF and that of CaFeAsF at ambient pressure coincide. The difference of our phase diagram with that of electron-doped 1111 samples is accounted for by hole doping under pressure, which we verified through electron band structure calculations.Fil: Freitas, Daniele C.. Centre National de la Recherche Scientifique; Francia. Universite Joseph Fourier; FranciaFil: Garbarino, Gaston Leonel. European Synchrotron Radiation Facility; FranciaFil: Weht, Ruben Oscar. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sow, Amadou. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; FranciaFil: Zhu, Xiyu. Chinese Academy of Sciences; República de ChinaFil: Han, Fei. Chinese Academy of Sciences; República de ChinaFil: Cheng, Peng. Chinese Academy of Sciences; República de ChinaFil: Ju, Jing. Chinese Academy of Sciences; República de ChinaFil: Wen, Hai Hu. Chinese Academy of Sciences; República de ChinaFil: Nunez Regueiro, Manuel Daniel. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; FranciaIOP Publishing2014-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/33363Sow, Amadou; Wen, Hai Hu; Garbarino, Gaston Leonel; Freitas, Daniele C.; Cheng, Peng; Nunez Regueiro, Manuel Daniel; et al.; Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF; IOP Publishing; Journal of Physics: Condensed Matter; 26; 15; 3-2014; 1-5; 57020953-8984CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/26/15/155702info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/26/15/155702info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-10-22T11:23:29Zoai:ri.conicet.gov.ar:11336/33363instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-10-22 11:23:30.119CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse |
| dc.title.none.fl_str_mv |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF |
| title |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF |
| spellingShingle |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF Freitas, Daniele C. Superconductivity Electronic Properties Pressure Phase Diagram |
| title_short |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF |
| title_full |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF |
| title_fullStr |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF |
| title_full_unstemmed |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF |
| title_sort |
Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF |
| dc.creator.none.fl_str_mv |
Freitas, Daniele C. Garbarino, Gaston Leonel Weht, Ruben Oscar Sow, Amadou Zhu, Xiyu Han, Fei Cheng, Peng Ju, Jing Wen, Hai Hu Nunez Regueiro, Manuel Daniel |
| author |
Freitas, Daniele C. |
| author_facet |
Freitas, Daniele C. Garbarino, Gaston Leonel Weht, Ruben Oscar Sow, Amadou Zhu, Xiyu Han, Fei Cheng, Peng Ju, Jing Wen, Hai Hu Nunez Regueiro, Manuel Daniel |
| author_role |
author |
| author2 |
Garbarino, Gaston Leonel Weht, Ruben Oscar Sow, Amadou Zhu, Xiyu Han, Fei Cheng, Peng Ju, Jing Wen, Hai Hu Nunez Regueiro, Manuel Daniel |
| author2_role |
author author author author author author author author author |
| dc.subject.none.fl_str_mv |
Superconductivity Electronic Properties Pressure Phase Diagram |
| topic |
Superconductivity Electronic Properties Pressure Phase Diagram |
| purl_subject.fl_str_mv |
https://purl.org/becyt/ford/1.3 https://purl.org/becyt/ford/1 |
| dc.description.none.fl_txt_mv |
We determine the pressure phase diagram of the 1111 compounds CaFeAsF and SrFeAsF, up to 20 GPa and down to 4 K by electrical resistivity measurements and the change of structure up to 40 GPa at room temperature. The antiferromagnetic transition temperature, as determined by the derivative peak, shows a minimum at ~5 GPa (10 GPa) for the Ca (Sr) compound. For CaFeAsF, superconductivity appears at this minimum, coincident with the development of a previously reported monoclinic phase. For SrFeAsF, where the orthorhombic and the monoclinic phase were reported to coexist, superconductivity exists above P≥1 GPa. Both phase diagrams can be scaled by a shift of ~10 GPa pressure at which the volume of SrFeAsF and that of CaFeAsF at ambient pressure coincide. The difference of our phase diagram with that of electron-doped 1111 samples is accounted for by hole doping under pressure, which we verified through electron band structure calculations. Fil: Freitas, Daniele C.. Centre National de la Recherche Scientifique; Francia. Universite Joseph Fourier; Francia Fil: Garbarino, Gaston Leonel. European Synchrotron Radiation Facility; Francia Fil: Weht, Ruben Oscar. Comisión Nacional de Energía Atómica. Centro Atómico Constituyentes. Gerencia de Investigación y Aplicaciones; Argentina. Universidad Nacional de San Martín. Instituto Sabato; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina Fil: Sow, Amadou. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia Fil: Zhu, Xiyu. Chinese Academy of Sciences; República de China Fil: Han, Fei. Chinese Academy of Sciences; República de China Fil: Cheng, Peng. Chinese Academy of Sciences; República de China Fil: Ju, Jing. Chinese Academy of Sciences; República de China Fil: Wen, Hai Hu. Chinese Academy of Sciences; República de China Fil: Nunez Regueiro, Manuel Daniel. Universite Joseph Fourier; Francia. Centre National de la Recherche Scientifique; Francia |
| description |
We determine the pressure phase diagram of the 1111 compounds CaFeAsF and SrFeAsF, up to 20 GPa and down to 4 K by electrical resistivity measurements and the change of structure up to 40 GPa at room temperature. The antiferromagnetic transition temperature, as determined by the derivative peak, shows a minimum at ~5 GPa (10 GPa) for the Ca (Sr) compound. For CaFeAsF, superconductivity appears at this minimum, coincident with the development of a previously reported monoclinic phase. For SrFeAsF, where the orthorhombic and the monoclinic phase were reported to coexist, superconductivity exists above P≥1 GPa. Both phase diagrams can be scaled by a shift of ~10 GPa pressure at which the volume of SrFeAsF and that of CaFeAsF at ambient pressure coincide. The difference of our phase diagram with that of electron-doped 1111 samples is accounted for by hole doping under pressure, which we verified through electron band structure calculations. |
| publishDate |
2014 |
| dc.date.none.fl_str_mv |
2014-03 |
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info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion http://purl.org/coar/resource_type/c_6501 info:ar-repo/semantics/articulo |
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article |
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publishedVersion |
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http://hdl.handle.net/11336/33363 Sow, Amadou; Wen, Hai Hu; Garbarino, Gaston Leonel; Freitas, Daniele C.; Cheng, Peng; Nunez Regueiro, Manuel Daniel; et al.; Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF; IOP Publishing; Journal of Physics: Condensed Matter; 26; 15; 3-2014; 1-5; 5702 0953-8984 CONICET Digital CONICET |
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http://hdl.handle.net/11336/33363 |
| identifier_str_mv |
Sow, Amadou; Wen, Hai Hu; Garbarino, Gaston Leonel; Freitas, Daniele C.; Cheng, Peng; Nunez Regueiro, Manuel Daniel; et al.; Hole doping by pressure on the 1111 pnictides CaFeAsF and SrFeAsF; IOP Publishing; Journal of Physics: Condensed Matter; 26; 15; 3-2014; 1-5; 5702 0953-8984 CONICET Digital CONICET |
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eng |
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eng |
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info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/0953-8984/26/15/155702 info:eu-repo/semantics/altIdentifier/doi/10.1088/0953-8984/26/15/155702 |
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openAccess |
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application/pdf application/pdf |
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IOP Publishing |
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IOP Publishing |
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dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar |
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