Magnetic fluctuations in pair-density-wave superconductors
Pair-density-wave superconductivity constitutes a novel electronic condensate proposed to be realized in certain unconventional superconductors. Establishing its potential existence is important for our fundamental understanding of superconductivity in correlated materials. Here we compute the dynam...
| Main Authors: | , , , |
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| Format: | Journal article |
| Language: | English |
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American Physical Society
2016
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| _version_ | 1797072649364439040 |
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| author | Christensen, M Jacobsen, H Maier, T Andersen, B |
| author_facet | Christensen, M Jacobsen, H Maier, T Andersen, B |
| author_sort | Christensen, M |
| collection | OXFORD |
| description | Pair-density-wave superconductivity constitutes a novel electronic condensate proposed to be realized in certain unconventional superconductors. Establishing its potential existence is important for our fundamental understanding of superconductivity in correlated materials. Here we compute the dynamical magnetic susceptibility in the presence of a pair-density-wave ordered state and study its fingerprints on the spin-wave spectrum including the neutron resonance. In contrast to the standard case of d-wave superconductivity, we show that the pair-density-wave phase exhibits neither a spin gap nor a magnetic resonance peak, in agreement with a recent neutron scattering experiment on underdoped La1.905Ba0.095CuO4 [Z. Xu et al., Phys. Rev. Lett. 113, 177002 (2014)]. |
| first_indexed | 2024-03-06T23:10:47Z |
| format | Journal article |
| id | oxford-uuid:6561c293-492f-4c58-8ab4-764af90dffdf |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T23:10:47Z |
| publishDate | 2016 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:6561c293-492f-4c58-8ab4-764af90dffdf2022-03-26T18:25:13ZMagnetic fluctuations in pair-density-wave superconductorsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:6561c293-492f-4c58-8ab4-764af90dffdfEnglishSymplectic Elements at OxfordAmerican Physical Society2016Christensen, MJacobsen, HMaier, TAndersen, BPair-density-wave superconductivity constitutes a novel electronic condensate proposed to be realized in certain unconventional superconductors. Establishing its potential existence is important for our fundamental understanding of superconductivity in correlated materials. Here we compute the dynamical magnetic susceptibility in the presence of a pair-density-wave ordered state and study its fingerprints on the spin-wave spectrum including the neutron resonance. In contrast to the standard case of d-wave superconductivity, we show that the pair-density-wave phase exhibits neither a spin gap nor a magnetic resonance peak, in agreement with a recent neutron scattering experiment on underdoped La1.905Ba0.095CuO4 [Z. Xu et al., Phys. Rev. Lett. 113, 177002 (2014)]. |
| spellingShingle | Christensen, M Jacobsen, H Maier, T Andersen, B Magnetic fluctuations in pair-density-wave superconductors |
| title | Magnetic fluctuations in pair-density-wave superconductors |
| title_full | Magnetic fluctuations in pair-density-wave superconductors |
| title_fullStr | Magnetic fluctuations in pair-density-wave superconductors |
| title_full_unstemmed | Magnetic fluctuations in pair-density-wave superconductors |
| title_short | Magnetic fluctuations in pair-density-wave superconductors |
| title_sort | magnetic fluctuations in pair density wave superconductors |
| work_keys_str_mv | AT christensenm magneticfluctuationsinpairdensitywavesuperconductors AT jacobsenh magneticfluctuationsinpairdensitywavesuperconductors AT maiert magneticfluctuationsinpairdensitywavesuperconductors AT andersenb magneticfluctuationsinpairdensitywavesuperconductors |