Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides

Zhao, YuanYuan; Tai, Yuan -Yen; Ting, C. S.

doi:10.1103/PhysRevB.91.205110

Title: Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides

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Abstract

Recent experiments demonstrated that the isovalent doping system gives a similar phase diagram as the heterovalent doped cases. For example, with the phosphorous (P) doping, the magnetic order in BaFe₂(As_1–xP_x)₂ compound is first suppressed, then the superconductivity dome emerges to an extended doping region but eventually it disappears at large x. With the help of a minimal two-orbital model for both BaFe₂As₂ and BaFe₂P₂, together with the self-consistent lattice Bogoliubov-de Gennes (BdG) equation, we calculate the phase diagram against the P content x in which the doped isovalent P atoms are treated as impurities. Furthermore, we show that our numerical results can qualitatively compare with the experimental measurements.

Authors:

Zhao, YuanYuan ^[1]; Tai, Yuan -Yen ^[2]; Ting, C. S. ^[1]

Univ. of Houston, Houston, TX (United States)
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:: Mon May 11 00:00:00 EDT 2015

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1234458

Alternate Identifier(s):: OSTI ID: 1179299

Report Number(s):: LA-UR-14-29601
Journal ID: ISSN 1098-0121; PRBMDO

Grant/Contract Number:: E-1146; AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review. B, Condensed Matter and Materials Physics

Additional Journal Information:: Journal Volume: 91; Journal Issue: 20; Journal ID: ISSN 1098-0121

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats


                    Zhao, YuanYuan, Tai, Yuan -Yen, and Ting, C. S. Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides.  United States: N. p., 2015. 
Web.  doi:10.1103/PhysRevB.91.205110.

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                    Zhao, YuanYuan, Tai, Yuan -Yen, & Ting, C. S. Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides.  United States.  https://doi.org/10.1103/PhysRevB.91.205110

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                    Zhao, YuanYuan, Tai, Yuan -Yen, and Ting, C. S. Mon .  
"Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides".  United States.  https://doi.org/10.1103/PhysRevB.91.205110.  https://www.osti.gov/servlets/purl/1234458.

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@article{osti_1234458,

  title        = {Phase diagram of the isovalent phosphorous-substituted 122-type iron pnictides},

  author       = {Zhao, YuanYuan and Tai, Yuan -Yen and Ting, C. S.},

  abstractNote = {Recent experiments demonstrated that the isovalent doping system gives a similar phase diagram as the heterovalent doped cases. For example, with the phosphorous (P) doping, the magnetic order in BaFe2(As1–xPx)2 compound is first suppressed, then the superconductivity dome emerges to an extended doping region but eventually it disappears at large x. With the help of a minimal two-orbital model for both BaFe2As2 and BaFe2P2, together with the self-consistent lattice Bogoliubov-de Gennes (BdG) equation, we calculate the phase diagram against the P content x in which the doped isovalent P atoms are treated as impurities. Furthermore, we show that our numerical results can qualitatively compare with the experimental measurements.},

  doi          = {10.1103/PhysRevB.91.205110},

  journal      = {Physical Review. B, Condensed Matter and Materials Physics},

  number       = 20,

  volume       = 91,

  place        = {United States},

  year         = {Mon May 11 00:00:00 EDT 2015},

  month        = {Mon May 11 00:00:00 EDT 2015}

}

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