Matches in SemOpenAlex for { <https://semopenalex.org/work/W2980459364> ?p ?o ?g. }
- W2980459364 abstract "Superconducting (SC) fluctuations in cuprate superconductors have been extensively studied to gain a deep insight into preformed Cooper pairs above the SC transition temperature $T_{text{c}}$. While the various measurements, such as the terahertz (THz) optical conductivity, Nernst effect, angle-resolved photoemission spectroscopy (ARPES), and scanning tunneling microscopy (STM) measurements have provided the signature of the SC fluctuations, the onset temperature of the SC fluctuations depends on the measurement scheme. Here, we shed light on the Higgs mode to investigate the SC fluctuations, as it is the direct fingerprint of SC order parameter and can help elucidate the development of SC phase coherence. We perform THz pump-optical probe spectroscopy for underdoped and overdoped Bi$_2$Sr$_2$CaCu$_2$O$_{8+x}$ (Bi2212) thin films. The oscillatory behavior in the pump-probe signal (THz Kerr signal) observed in the SC phase has been identified as the Higgs mode in single crystals in our previous work [K. Katsumi et al., Phys. Rev. Lett. 120, 117001 (2018)], but two onset temperatures are identified above $T_{text{c}}$. Combined with the results of the single crystals in a wide range of doping, we find that the first onset $T_1^{text{ons}}$ is 10-30 K above $T_{text{c}}$. $T_1^{text{ons}}$ coincides with that of the superfluid density $N_s$ extracted from the THz optical conductivity. Hence, $T_1^{text{ons}}$ is interpreted as the onset of macroscopic SC phase stiffness. On the other hand, the second onset $T_2^{text{ons}}$ is identified at substantially higher than $T_{text{c}}$, whose origin is discussed in terms of preformed Cooper pairs." @default.
- W2980459364 created "2019-10-25" @default.
- W2980459364 creator A5007066086 @default.
- W2980459364 creator A5007593551 @default.
- W2980459364 creator A5013447569 @default.
- W2980459364 creator A5072003212 @default.
- W2980459364 creator A5074444081 @default.
- W2980459364 date "2020-08-14" @default.
- W2980459364 modified "2023-10-18" @default.
- W2980459364 title "Superconducting fluctuations probed by the Higgs mode in <mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML><mml:mrow><mml:msub><mml:mi>Bi</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Sr</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:mi>Ca</mml:mi><mml:msub><mml:mi>Cu</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant=normal>O</mml:mi><mml:mrow><mml:mn>8</mml:mn><mml:mo>+</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math> thin films" @default.
- W2980459364 cites W1544572668 @default.
- W2980459364 cites W1545816217 @default.
- W2980459364 cites W1551194139 @default.
- W2980459364 cites W1579290046 @default.
- W2980459364 cites W1591506761 @default.
- W2980459364 cites W1633442599 @default.
- W2980459364 cites W1663218197 @default.
- W2980459364 cites W1793027474 @default.
- W2980459364 cites W1870137018 @default.
- W2980459364 cites W1880793210 @default.
- W2980459364 cites W1964092820 @default.
- W2980459364 cites W1966138251 @default.
- W2980459364 cites W1968099222 @default.
- W2980459364 cites W1975667317 @default.
- W2980459364 cites W1980718524 @default.
- W2980459364 cites W1981465095 @default.
- W2980459364 cites W1983260971 @default.
- W2980459364 cites W1988355620 @default.
- W2980459364 cites W1993682565 @default.
- W2980459364 cites W1998605202 @default.
- W2980459364 cites W2007607761 @default.
- W2980459364 cites W2018281536 @default.
- W2980459364 cites W2022620806 @default.
- W2980459364 cites W2023684208 @default.
- W2980459364 cites W2028078708 @default.
- W2980459364 cites W2037724287 @default.
- W2980459364 cites W2038123397 @default.
- W2980459364 cites W2041778568 @default.
- W2980459364 cites W2042360747 @default.
- W2980459364 cites W2049491080 @default.
- W2980459364 cites W2049545343 @default.
- W2980459364 cites W2050058598 @default.
- W2980459364 cites W2051526871 @default.
- W2980459364 cites W2054860087 @default.
- W2980459364 cites W2059677526 @default.
- W2980459364 cites W2061272712 @default.
- W2980459364 cites W2066662841 @default.
- W2980459364 cites W2066733518 @default.
- W2980459364 cites W2072186540 @default.
- W2980459364 cites W2074847533 @default.
- W2980459364 cites W2077291180 @default.
- W2980459364 cites W2078460790 @default.
- W2980459364 cites W2086635118 @default.
- W2980459364 cites W2092411358 @default.
- W2980459364 cites W2110614738 @default.
- W2980459364 cites W2111969781 @default.
- W2980459364 cites W2151129471 @default.
- W2980459364 cites W2152852382 @default.
- W2980459364 cites W2191858124 @default.
- W2980459364 cites W2214504069 @default.
- W2980459364 cites W2218209387 @default.
- W2980459364 cites W2258635766 @default.
- W2980459364 cites W2442959386 @default.
- W2980459364 cites W2561609757 @default.
- W2980459364 cites W2568454416 @default.
- W2980459364 cites W2596932632 @default.
- W2980459364 cites W2605881890 @default.
- W2980459364 cites W2765552540 @default.
- W2980459364 cites W2766350334 @default.
- W2980459364 cites W2768337446 @default.
- W2980459364 cites W2772584382 @default.
- W2980459364 cites W2805444719 @default.
- W2980459364 cites W2816111713 @default.
- W2980459364 cites W2891915053 @default.
- W2980459364 cites W2911630757 @default.
- W2980459364 cites W3015422553 @default.
- W2980459364 cites W3101080587 @default.
- W2980459364 cites W3102015781 @default.
- W2980459364 cites W3102890025 @default.
- W2980459364 cites W3105889632 @default.
- W2980459364 cites W3105916684 @default.
- W2980459364 cites W311625791 @default.
- W2980459364 cites W3124300093 @default.
- W2980459364 cites W3124401528 @default.
- W2980459364 cites W3126096340 @default.
- W2980459364 cites W4211160391 @default.
- W2980459364 doi "https://doi.org/10.1103/physrevb.102.054510" @default.
- W2980459364 hasPublicationYear "2020" @default.
- W2980459364 type Work @default.
- W2980459364 sameAs 2980459364 @default.
- W2980459364 citedByCount "21" @default.
- W2980459364 countsByYear W29804593642020 @default.
- W2980459364 countsByYear W29804593642021 @default.
- W2980459364 countsByYear W29804593642022 @default.
- W2980459364 countsByYear W29804593642023 @default.
- W2980459364 crossrefType "journal-article" @default.
- W2980459364 hasAuthorship W2980459364A5007066086 @default.
- W2980459364 hasAuthorship W2980459364A5007593551 @default.
- W2980459364 hasAuthorship W2980459364A5013447569 @default.
- W2980459364 hasAuthorship W2980459364A5072003212 @default.