Gradual emergence of superconductivity in underdoped La2-x Srx CuO4

Ana Elena Ţuţueanu; MacHteld E. Kamminga; Tim B. Tejsner; Henrik Jacobsen; Henriette W. Hansen; Monica Elisabeta Lǎcǎtuşu; Jacob Baas; Kira L. Eliasen; Jean Claude Grivel; Yasmine Sassa; Niels Bech Christensen; Paul Steffens; Martin Boehm; Andrea Piovano; Kim Lefmann; Astrid T. Rømer

doi:10.1103/PhysRevB.107.174514

Gradual emergence of superconductivity in underdoped La2-x Srx CuO4

Ana Elena Ţuţueanu, MacHteld E. Kamminga, Tim B. Tejsner, Henrik Jacobsen, Henriette W. Hansen, Monica Elisabeta Lǎcǎtuşu, Jacob Baas, Kira L. Eliasen, Jean Claude Grivel, Yasmine Sassa, Niels Bech Christensen, Paul Steffens, Martin Boehm, Andrea Piovano, Kim Lefmann, Astrid T. Rømer

Solid State Materials for Electronics

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We present triple-axis neutron scattering studies of low-energy magnetic fluctuations in strongly underdoped La2-xSrxCuO4 with x=0.05, 0.06 and 0.07, providing quantitative evidence for a direct competition between these fluctuations and superconductivity. At dopings x=0.06 and x=0.07, three-dimensional superconductivity is found, while only a very weak signature of two-dimensional superconductivity residing in the CuO2 planes is detectable for x=0.05. We find a surprising suppression of the low-energy fluctuations by an external magnetic field at all three dopings. This implies that the response of two-dimensional superconductivity to a magnetic field is similar to that of a bulk superconductor. Our results provide direct evidence of a very gradual onset of superconductivity in cuprates.

Originele taal-2	English
Artikelnummer	174514
Aantal pagina's	6
Tijdschrift	Physical Review B
Volume	107
Nummer van het tijdschrift	17
DOI's	https://doi.org/10.1103/PhysRevB.107.174514
Status	Published - 1-mei-2023

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Ţuţueanu, A. E., Kamminga, M. E., Tejsner, T. B., Jacobsen, H., Hansen, H. W., Lǎcǎtuşu, M. E., Baas, J., Eliasen, K. L., Grivel, J. C., Sassa, Y., Christensen, N. B., Steffens, P., Boehm, M., Piovano, A., Lefmann, K., & Rømer, A. T. (2023). Gradual emergence of superconductivity in underdoped La2-x Srx CuO4. Physical Review B, 107(17), Artikel 174514. https://doi.org/10.1103/PhysRevB.107.174514

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title = "Gradual emergence of superconductivity in underdoped La2-x Srx CuO4",

abstract = "We present triple-axis neutron scattering studies of low-energy magnetic fluctuations in strongly underdoped La2-xSrxCuO4 with x=0.05, 0.06 and 0.07, providing quantitative evidence for a direct competition between these fluctuations and superconductivity. At dopings x=0.06 and x=0.07, three-dimensional superconductivity is found, while only a very weak signature of two-dimensional superconductivity residing in the CuO2 planes is detectable for x=0.05. We find a surprising suppression of the low-energy fluctuations by an external magnetic field at all three dopings. This implies that the response of two-dimensional superconductivity to a magnetic field is similar to that of a bulk superconductor. Our results provide direct evidence of a very gradual onset of superconductivity in cuprates.",

author = "{\c T}u{\c t}ueanu, {Ana Elena} and Kamminga, {MacHteld E.} and Tejsner, {Tim B.} and Henrik Jacobsen and Hansen, {Henriette W.} and Lǎcǎtu{\c s}u, {Monica Elisabeta} and Jacob Baas and Eliasen, {Kira L.} and Grivel, {Jean Claude} and Yasmine Sassa and Christensen, {Niels Bech} and Paul Steffens and Martin Boehm and Andrea Piovano and Kim Lefmann and R{\o}mer, {Astrid T.}",

note = "Publisher Copyright: {\textcopyright} 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.",

year = "2023",

month = may,

day = "1",

doi = "10.1103/PhysRevB.107.174514",

language = "English",

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Ţuţueanu, AE, Kamminga, ME, Tejsner, TB, Jacobsen, H, Hansen, HW, Lǎcǎtuşu, ME, Baas, J, Eliasen, KL, Grivel, JC, Sassa, Y, Christensen, NB, Steffens, P, Boehm, M, Piovano, A, Lefmann, K & Rømer, AT 2023, 'Gradual emergence of superconductivity in underdoped La2-x Srx CuO4', Physical Review B, vol. 107, nr. 17, 174514. https://doi.org/10.1103/PhysRevB.107.174514

TY - JOUR

T1 - Gradual emergence of superconductivity in underdoped La2-x Srx CuO4

AU - Ţuţueanu, Ana Elena

AU - Kamminga, MacHteld E.

AU - Tejsner, Tim B.

AU - Jacobsen, Henrik

AU - Hansen, Henriette W.

AU - Lǎcǎtuşu, Monica Elisabeta

AU - Baas, Jacob

AU - Eliasen, Kira L.

AU - Grivel, Jean Claude

AU - Sassa, Yasmine

AU - Christensen, Niels Bech

AU - Steffens, Paul

AU - Boehm, Martin

AU - Piovano, Andrea

AU - Lefmann, Kim

AU - Rømer, Astrid T.

N1 - Publisher Copyright: © 2023 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI.

PY - 2023/5/1

Y1 - 2023/5/1

N2 - We present triple-axis neutron scattering studies of low-energy magnetic fluctuations in strongly underdoped La2-xSrxCuO4 with x=0.05, 0.06 and 0.07, providing quantitative evidence for a direct competition between these fluctuations and superconductivity. At dopings x=0.06 and x=0.07, three-dimensional superconductivity is found, while only a very weak signature of two-dimensional superconductivity residing in the CuO2 planes is detectable for x=0.05. We find a surprising suppression of the low-energy fluctuations by an external magnetic field at all three dopings. This implies that the response of two-dimensional superconductivity to a magnetic field is similar to that of a bulk superconductor. Our results provide direct evidence of a very gradual onset of superconductivity in cuprates.

AB - We present triple-axis neutron scattering studies of low-energy magnetic fluctuations in strongly underdoped La2-xSrxCuO4 with x=0.05, 0.06 and 0.07, providing quantitative evidence for a direct competition between these fluctuations and superconductivity. At dopings x=0.06 and x=0.07, three-dimensional superconductivity is found, while only a very weak signature of two-dimensional superconductivity residing in the CuO2 planes is detectable for x=0.05. We find a surprising suppression of the low-energy fluctuations by an external magnetic field at all three dopings. This implies that the response of two-dimensional superconductivity to a magnetic field is similar to that of a bulk superconductor. Our results provide direct evidence of a very gradual onset of superconductivity in cuprates.

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U2 - 10.1103/PhysRevB.107.174514

DO - 10.1103/PhysRevB.107.174514

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SN - 2469-9950

VL - 107

JO - Physical Review B

JF - Physical Review B

IS - 17

M1 - 174514

ER -

Gradual emergence of superconductivity in underdoped La2-x Srx CuO4

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