Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2]
We present a theory for the large suppression of the superfluid density ρ[subscript s] in BaFe[subscript 2](As[subscript 1−x]P[subscript x])[subscript 2] in the vicinity of a putative spin-density wave quantum critical point at a P doping, x = x[subscript c]. We argue that the transition becomes wea...
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| 格式: | 文件 |
| 语言: | English |
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American Physical Society
2015
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| 在线阅读: | http://hdl.handle.net/1721.1/98230 https://orcid.org/0000-0003-4203-4148 |
| _version_ | 1826206038669393920 |
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| author | Chowdhury, Debanjan Orenstein, J. Sachdev, Subir Todadri, Senthil |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Chowdhury, Debanjan Orenstein, J. Sachdev, Subir Todadri, Senthil |
| author_sort | Chowdhury, Debanjan |
| collection | MIT |
| description | We present a theory for the large suppression of the superfluid density ρ[subscript s] in BaFe[subscript 2](As[subscript 1−x]P[subscript x])[subscript 2] in the vicinity of a putative spin-density wave quantum critical point at a P doping, x = x[subscript c]. We argue that the transition becomes weakly first order in the vicinity of x[subscript c], and disorder induces puddles of superconducting and antiferromagnetic regions at short length scales; thus, the system becomes an electronic microemulsion. We propose that frustrated Josephson couplings between the superconducting grains suppress ρ[subscript s]. In addition, the presence of “normal” quasiparticles at the interface of the frustrated Josephson junctions will give rise to a highly nontrivial feature in the low-frequency response in a narrow vicinity around x[subscript c]. We propose a number of experiments to test our theory. |
| first_indexed | 2024-09-23T13:23:02Z |
| format | Article |
| id | mit-1721.1/98230 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T13:23:02Z |
| publishDate | 2015 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/982302022-10-01T14:52:38Z Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2] Chowdhury, Debanjan Orenstein, J. Sachdev, Subir Todadri, Senthil Massachusetts Institute of Technology. Department of Physics Todadri, Senthil We present a theory for the large suppression of the superfluid density ρ[subscript s] in BaFe[subscript 2](As[subscript 1−x]P[subscript x])[subscript 2] in the vicinity of a putative spin-density wave quantum critical point at a P doping, x = x[subscript c]. We argue that the transition becomes weakly first order in the vicinity of x[subscript c], and disorder induces puddles of superconducting and antiferromagnetic regions at short length scales; thus, the system becomes an electronic microemulsion. We propose that frustrated Josephson couplings between the superconducting grains suppress ρ[subscript s]. In addition, the presence of “normal” quasiparticles at the interface of the frustrated Josephson junctions will give rise to a highly nontrivial feature in the low-frequency response in a narrow vicinity around x[subscript c]. We propose a number of experiments to test our theory. United States. Dept. of Energy (DESC-8739-ER46872) Simons Foundation (Simons Investigator Award) 2015-08-25T19:41:56Z 2015-08-25T19:41:56Z 2015-08 2015-06 2015-08-24T22:00:08Z Article http://purl.org/eprint/type/JournalArticle 1098-0121 1550-235X http://hdl.handle.net/1721.1/98230 Chowdhury, Debanjan, J. Orenstein, Subir Sachev, and T. Senthil. "Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2]." Phys. Rev. B 92, 081113 (August 2015). © 2015 American Physical Society https://orcid.org/0000-0003-4203-4148 en http://dx.doi.org/10.1103/PhysRevB.92.081113 Physical Review B Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. American Physical Society application/pdf American Physical Society American Physical Society |
| spellingShingle | Chowdhury, Debanjan Orenstein, J. Sachdev, Subir Todadri, Senthil Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2] |
| title | Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2] |
| title_full | Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2] |
| title_fullStr | Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2] |
| title_full_unstemmed | Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2] |
| title_short | Phase transition beneath the superconducting dome in BaFe[subscript 2](As[subscript 1-x]P[subscript x])[subscript 2] |
| title_sort | phase transition beneath the superconducting dome in bafe subscript 2 as subscript 1 x p subscript x subscript 2 |
| url | http://hdl.handle.net/1721.1/98230 https://orcid.org/0000-0003-4203-4148 |
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