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Title: Interrelationships between nematicity, antiferromagnetic spin fluctuations, and superconductivity: Role of hotspots in FeSe 1 - x S x revealed by high pressure Se 77 NMR study

Journal Article · · Physical Review. B

The sulfur-substituted FeSe, FeSe1-xSx, is one of the unique systems that provides an independent tunability of nematicity, antiferromagnetism, and superconductivity under pressure (p). Recently, Rana et al. [K. Rana et al., Phys. Rev. B 101, 180503(R) (2020)] reported, from 77Se nuclear magnetic resonance (NMR) measurements on FeSe0.91S0.09 under pressure, that there exists a clear role of nematicity in the relationship between antiferromagnetic (AFM) spin fluctuations and the superconducting transition temperature (Tc), where the AFM spin fluctuations are more effective in enhancing Tc in the absence of nematicity than with nematicity. Here, motivated by the work, we carried out 77Se NMR measurements on FeSe1-xSx with x=0.15 and 0.29 under pressure up to 2.10 GPa to investigate the relationship in a wide range of x in the FeSe1-xSx system. Based on the new results together with the previously reported data for x=0 [P. Wiecki et al., Phys. Rev. B 96, 180502(R) (2017)] and 0.09 [K. Rana et al. Phys. Rev. B 101, 180503(R) (2020)], we established a p–x–temperature (T) phase diagram exhibiting the evolution of AFM spin fluctuations. From the systematic analysis of the NMR data, we found that the superconducting (SC) state in a nematic state arises from a non-Fermi-liquid state with strong stripe-type AFM spin fluctuations, while the SC state without nematicity comes from a Fermi-liquid state with mild stripe-type AFM spin fluctuations. Furthermore, we show that the previously reported impact of nematicity on the relationship between AFM fluctuations and superconductivity holds throughout the wide range of x from x=0 to 0.29 in FeSe1-xSx under pressure. We discuss the origin of the role of nematicity in terms of the different numbers of hotspots on Fermi surfaces with and without nematicity.

Research Organization:
Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-07CH11358
OSTI ID:
1969555
Report Number(s):
IS-J-11,043; TRN: US2313423
Journal Information:
Physical Review. B, Vol. 107, Issue 13; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (63)

Why Does Undoped FeSe Become a High- T c Superconductor under Pressure? journal April 2009
Suppression of electron correlations in the collapsed tetragonal phase of Ca Fe 2 As 2 under ambient pressure demonstrated by As 75 NMR/NQR measurements journal March 2014
Crystallographic, electronic, thermal, and magnetic properties of single-crystal SrCo 2 As 2 journal July 2013
Relationship Between Nematicity, Antiferromagnetic Fluctuations, and Superconductivity in FeSe1−xSx Revealed by NMR journal March 2022
Cuprous oxide manometer for high‐pressure magnetic resonance experiments journal May 1992
Persistent correlation between superconductivity and antiferromagnetic fluctuations near a nematic quantum critical point in FeSe 1 x S x journal July 2018
Bose-Einstein condensation superconductivity induced by disappearance of the nematic state journal November 2020
Quenched nematic criticality and two superconducting domes in an iron-based superconductor journal October 2019
The Effect of Electron-Electron Interaction on the Nuclear Spin Relaxation in Metals journal April 1963
Pressure evolution of the low-temperature crystal structure and bonding of the superconductor FeSe ( T c = 37 K ) journal August 2009
Impact of nematicity on the relationship between antiferromagnetic fluctuations and superconductivity in FeSe 0.91 S 0.09 under pressure journal May 2020
Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal March 2008
Pressure Induced Static Magnetic Order in Superconducting FeSe 1 x journal February 2010
Bulk Superconductivity and Role of Fluctuations in the Iron-Based Superconductor FeSe at High Pressures journal October 2019
Electronic and magnetic phase diagram of β-Fe1.01Se with superconductivity at 36.7 K under pressure journal June 2009
Effects of Electron-Electron Interactions on Nuclear Spin-Lattice Relaxation Rates and Knight Shifts in Alkali and Noble Metals journal November 1968
Signatures of a Quantum Griffiths Phase Close to an Electronic Nematic Quantum Phase Transition journal December 2021
Nematicity, magnetism and superconductivity in FeSe journal December 2017
Orbital-driven nematicity in FeSe journal November 2014
Potential Antiferromagnetic Fluctuations in Hole-Doped Iron-Pnictide Superconductor Ba 1- x K x Fe 2 As 2 Studied by 75 As Nuclear Magnetic Resonance Measurement journal May 2012
Distinct pressure evolution of coupled nematic and magnetic orders in FeSe journal August 2019
High-temperature superconductivity in iron-based materials journal August 2010
Superconducting properties of sulfur-doped iron selenide journal April 2015
Superconductivity in iron compounds journal December 2011
NMR evidence for static local nematicity and its cooperative interplay with low-energy magnetic fluctuations in FeSe under pressure journal November 2017
Manometer extension for high pressure measurement: Nuclear quadrupole resonance study of Cu2O with a modified Bridgman anvil cell up to 10 GPa journal January 2007
NMR study under pressure on the iron-based superconductor FeSe1−xSx (x = 0.12 and 0.23): Relationship between nematicity and AF fluctuations journal June 2020
Ubiquitous signatures of nematic quantum criticality in optimally doped Fe-based superconductors journal May 2016
Origin of the Tetragonal-to-Orthorhombic Phase Transition in FeSe: A Combined Thermodynamic and NMR Study of Nematicity journal January 2015
Superconductivity mediated by quantum critical antiferromagnetic fluctuations: The rise and fall of hot spots journal May 2017
New Superconductivity Dome in LaFeAsO 1− x F x Accompanied by Structural Transition journal September 2015
Superconductivity and non-Fermi liquid behavior near a nematic quantum critical point journal April 2017
Abrupt change of the superconducting gap structure at the nematic critical point in FeSe 1−x S x journal January 2018
Suppression of electronic correlations by chemical pressure from FeSe to FeS journal September 2017
Antiferromagnetic order and spin dynamics in iron-based superconductors journal August 2015
Exotic Superconducting States in FeSe-based Materials journal October 2020
Electronic anisotropies revealed by detwinned angle-resolved photo-emission spectroscopy measurements of FeSe journal October 2017
Superconductivity in the PbO-type structure  -FeSe journal September 2008
Pressure-Induced Antiferromagnetic Transition and Phase Diagram in FeSe journal June 2015
Enhancement of Superconductivity near a Nematic Quantum Critical Point journal March 2015
Separate tuning of nematicity and spin fluctuations to unravel the origin of superconductivity in FeSe journal January 2020
Volovik effect and Fermi-liquid behavior in the s -wave superconductor CaPd 2 As 2 :   As 75 NMR-NQR measurements journal April 2016
Suppression of orbital ordering by chemical pressure in FeSe 1 x S x journal September 2015
77 Se-NMR Study under Pressure on 12%-S Doped FeSe journal March 2019
Nonmonotonic pressure evolution of the upper critical field in superconducting FeSe journal February 2016
Antiferromagnetism of SrFe 2 As 2 Studied by Single-Crystal 75 As-NMR journal June 2009
Variation of transition temperatures and residual resistivity ratio in vapor-grown FeSe journal July 2016
FeAs-Based Superconductivity: A Case Study of the Effects of Transition Metal Doping on BaFe 2 As 2 journal August 2010
Stripe antiferromagnetic correlations in LaFeAsO 1 x F x probed by A 75 s NMR journal June 2010
Tetragonal-to-Orthorhombic Structural Phase Transition at 90 K in the Superconductor Fe 1.01 Se journal July 2009
What drives nematic order in iron-based superconductors? journal January 2014
Superconductivity at 27K in tetragonal FeSe under high pressure journal October 2008
Two distinct superconducting pairing states divided by the nematic end point in FeSe 1− x S x journal May 2018
Electronic Nematic States Tuned by Isoelectronic Substitution in Bulk FeSe1−xSx journal March 2021
Pressure-induced reconstitution of Fermi surfaces and spin fluctuations in S-substituted FeSe journal August 2021
Giant superconducting fluctuations in the compensated semimetal FeSe at the BCS–BEC crossover journal September 2016
Phenomenological model of nuclear relaxation in the normal state of YBa 2 Cu 3 O 7 journal July 1990
Pseudogap Behavior of the Nuclear Spin–Lattice Relaxation Rate in FeSe Probed by 77 Se-NMR journal January 2018
Preemptive nematic order, pseudogap, and orbital order in the iron pnictides journal January 2012
A common thread: The pairing interaction for unconventional superconductors journal October 2012
Strong cooperative coupling of pressure-induced magnetic order and nematicity in FeSe journal September 2016
Orbital-Fluctuation-Mediated Superconductivity in Iron Pnictides: Analysis of the Five-Orbital Hubbard-Holstein Model journal April 2010
The puzzle of high temperature superconductivity in layered iron pnictides and chalcogenides journal October 2010