Time-resolved ARPES on cuprates: Tracking the low-energy electrodynamics in the time domain

Zonno, Marta; Boschini, Fabio; Damascelli, A.

doi:10.1016/j.elspec.2021.147091

Cited by 14 publications

(5 citation statements)

References 104 publications

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“…The presented data undeniably demonstrates the capability of the present setup to resolve and study the momentum dependence of the near-FS electronic structures and superconducting gaps in cuprate systems with future applications for the study of ultrafast dynamics in high-

superconductors. 43 …”

Section: Performancementioning

confidence: 99%

A narrow bandwidth extreme ultra-violet light source for time- and angle-resolved photoemission spectroscopy

Guo

Dendzik

Čabo

et al. 2022

Structural Dynamics

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Here, we present a high repetition rate, narrow bandwidth, extreme ultraviolet photon source for time- and angle-resolved photoemission spectroscopy. The narrow bandwidth pulses [Formula: see text] meV for photon energies [Formula: see text] eV are generated through high harmonic generation using ultra-violet drive pulses with relatively long pulse lengths (461 fs). The high harmonic generation setup employs an annular drive beam in tight focusing geometry at a repetition rate of 250 kHz. Photon energy selection is provided by a series of selectable multilayer bandpass mirrors and thin film filters, thus avoiding any time broadening introduced by single grating monochromators. A two stage optical-parametric amplifier provides < 100 fs tunable pump pulses from 0.65 μm to 9 μm. The narrow bandwidth performance of the light source is demonstrated through angle-resolved photoemission measurements on a series of quantum materials, including high-temperature superconductor Bi-2212, WSe2, and graphene.

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superconductors. 43 …”

Section: Performancementioning

confidence: 99%

A narrow bandwidth extreme ultra-violet light source for time- and angle-resolved photoemission spectroscopy

Guo

Dendzik

Čabo

et al. 2022

Structural Dynamics

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“…For some novel materials the s parameter 2 . [20] for underdoped cuprates, (asterisk) Kaminski et al [21] and Zonno et al [22] from ARPES data; the solid line [23] is our traditional BCS interpretation for s-d exchange amplitude J sd approximately equal for all cuprates, which is a fitting parameter of the theory and can be used to determine the intensity of the scattering rate in the normal phase. The value of J sd used to obtain the curve in the figure is 7.23 eV is determined by fitting the Fermi contour at fixed other parameters and then the parameter r is calculated according to (8).…”

Section: Evaluation Of the Critical Temperature T Cmentioning

confidence: 99%

“…1 Correlation between the r parameter and T c : (square) Pavarini et al [4, Fig. 5], (plus) Vishik et al[20] for underdoped cuprates, (asterisk) Kaminski et al[21] and Zonno et al[22] from ARPES data; the solid line[23] is our traditional BCS interpretation for s-d exchange amplitude J sd approximately equal for all cuprates, which is a fitting parameter of the theory and can be used to determine the intensity of the scattering rate in the normal phase. The value of J sd used to obtain the curve in the figure is 7.23 eV…”

mentioning

confidence: 99%

Hot spots along the Fermi contour of high-Tc cuprates analyzed by s-d exchange interaction

et al. 2022

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We perform a thorough theoretical study of the electron properties of a generic CuO$$_2$$ 2 plane in the framework of Shubin–Kondo–Zener s-d exchange interaction that simultaneously describes the correlation between Tc and the Cu4s energy. To this end, we apply the Pokrovsky theory (J Exp Theor Phys 13:447–450, 1961) for anisotropic gap BCS superconductors. It takes into account the thermodynamic fluctuations of the electric field in the dielectric direction perpendicular to the conducting layers. We microscopically derive a multiplicatively separable kernel able to describe the scattering rate in the momentum space, as well as the superconducting gap anisotropy within the BCS theory. These findings may be traced back to the fact that both the Fermi liquid and the BCS reductions lead to one and the same reduced Hamiltonian involving a separable interaction, such that a strong electron scattering corresponds to a strong superconducting gap and vice versa. Moreover, the superconducting gap and the scattering rate vanish simultaneously along the diagonals of the Brillouin zone. We would like to stress that our theoretical study reproduces the phenomenological analysis of other authors aiming at describing Angle Resolved Photoemission Spectroscopy measurements. Within standard approximations one and the same s-d exchange Hamiltonian describes gap anisotropy of the superconducting phase and the anisotropy of scattering rate of charge carriers in the normal phase.

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“…In this review, we focus on arguably the most significant innovations in the field of photoemission from a rather technical perspective. More specialized reviews of ARPES studies of quantum materials can be found in [5][6][7][8][9]. The manuscript is organized as follows: First, we provide a brief introduction to the fundamental theory of the photoemission process, discuss experimental matters connected to photon energy, and reflect on sample requirements.…”

Section: Introductionmentioning

confidence: 99%

Recent progress in angle-resolved photoemission spectroscopy

Wang,

Dendzik

2024

Meas. Sci. Technol.

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Angle-resolved photoemission spectroscopy (ARPES) is a well-established experimental technique that allows probing of the electronic structure of quantum materials using relatively high-energy photons. ARPES has been extensively used to study important classes of materials such as topological insulators, high-temperature superconductors, two-dimensional materials or interface systems. Although the technique was originally developed over 60 years ago, the last decade has witnessed significant advancements in instrumentation. In this review, we survey recent progress in ARPES, with a focus on developments in novel light sources and electron detection methods, which enable the expansion of ARPES into spin-, time-, or space-resolved domains. Important examples of ARPES results are presented, together with an outlook for the field.

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Time-resolved ARPES on cuprates: Tracking the low-energy electrodynamics in the time domain

Cited by 14 publications

References 104 publications

A narrow bandwidth extreme ultra-violet light source for time- and angle-resolved photoemission spectroscopy

A narrow bandwidth extreme ultra-violet light source for time- and angle-resolved photoemission spectroscopy

Hot spots along the Fermi contour of high-Tc cuprates analyzed by s-d exchange interaction

Recent progress in angle-resolved photoemission spectroscopy

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