Title: Spin dynamics of the spin-chain antiferromagnet RbFeS2

Journal Article · · Physical Review B
ORCiD logo [1];  [1]; ORCiD logo [2]; ORCiD logo [3];  [1]; ORCiD logo [1]; ORCiD logo [4]
  1. Sun Yat-Sen Univ., Guangzhou (China). Center for Neutron Science and Technology
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Brigham Young Univ., Provo, UT (United States)
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
  4. Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
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In this work, we report transport and inelastic neutron scattering studies on electronic properties and spin dynamics of the quasi-one-dimensional spin-chain antiferromagnet RbFeS2. An antiferromagnetic phase transition at TN≈195 K and dispersive spin waves with a spin gap of 5 meV are observed. By modeling the spin excitation spectra using linear spin wave theory, intra and interchain exchange interactions are found to be SJ1=100(5) meV and SJ3=0.9(3) meV, respectively, together with a small single-ion anisotropy of SDzz=0.04(1) meV. Comparison with previous results for other materials in the same class of Fe3+ spin-chain systems reveals that although the magnetic order sizes show significant variation from 1.8 to 3.0μB within the family of materials, the exchange interactions SJ are nevertheless quite similar, analogous to the iron pnictide superconductors where both localized and delocalized electrons contribute to the spin dynamics.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Organization:
National Key R&D Program of China; National Natural Science Foundation of China (NSFC); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-05CH11231; AC05-00OR22725
OSTI ID:
1841472
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 22 Vol. 104; ISSN 2469-9950
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (46)

Magnetic ordering in the chain compound KFeS2 journal January 1980
Hard X-ray photoemission study of the covalent-chain antiferromagnets TlFeS 2 and TlFeSe 2 journal May 2013
Darstellung, Kristallstruktur und magnetische Eigenschaften von Alkalithioferraten(III). Mit 4 Abbildungen journal July 1968
Magnetic resonance in KFeS2 single crystals journal October 1978
Magnetism of iron-sulfur tetrahedral frameworks in compounds with thallium I. Chain structures journal January 1989
The antiferromagnetic structures of KFeS2, RbFeS2, KFeSe2, and RbFeSe2 and the correlation between magnetic moments and crystal field calculations journal October 1987
Magnetic structure of KFeS2 — A linear chain antiferromagnet and a spin analog of active sites of two iron ferredoxins — By neutron diffraction journal June 1979
Electron spin resonance in the linear chain compound RbFeS2 journal April 1981
Electric conduction in quasi-one-dimensional compound KFeS2 journal April 1995
Magnetocrystalline transformation and low-temperature structure of CsFeS2 journal June 1997
The magnetochemical characterisation of the bonding features in ternary chalcogenides of manganese, iron and cobalt with low dimensional structural units journal January 1997
Iron-Based Layered Superconductor La[O 1- x F x ]FeAs ( x = 0.05−0.12) with T c = 26 K journal March 2008
Doping dependence of spin excitations and its correlations with high-temperature superconductivity in iron pnictides journal December 2013
Pressure-induced superconductivity in the iron-based ladder material BaFe2S3 journal July 2015
Electronic and magnetic phase diagram in KxFe2-ySe2 superconductors journal January 2012
Design and operation of the wide angular-range chopper spectrometer ARCS at the Spallation Neutron Source journal January 2012
Experiments on simple magnetic model systems journal January 1974
Pressure-Induced Metallization and Structural Phase Transition in the Quasi-One-Dimensional TlFeSe 2 journal March 2020
Linear spin wave theory for single-Q incommensurate magnetic structures journal March 2015
The peculiar physical properties and phase diagram of BaFe 2- x Co x As 2 single crystals journal April 2009
Superconductivity and Magnetism in (Tl, K, Rb)Fe x Se 2 journal July 2013
High-energy spin waves in the linear-chain antiferromagnet KFeS 2 journal June 1992
Spin, exchange, and anisotropy in the covalent-chain antiferromagnet TlFeS 2 journal May 1992
Regular versus alternating ( FeS 4 ) n chains: Magnetism in KFeS 2 and CsFeS 2 journal October 1997
Magnetic susceptibility and ESR study of the covalent-chain antiferromagnets TlFeS 2 and TlFeSe 2 journal December 2001
Local antiferromagnetic correlations in the iron pnictide superconductors LaFeAsO 1 − x F x and Ca ( Fe 1 − x Co x ) 2 As 2 as seen via normal-state susceptibility journal January 2010
Superconductivity in the iron selenide K x Fe 2 Se 2 ( 0 ≤ x ≤ 1.0 ) journal November 2010
Phase diagram of the iron arsenide superconductors Ca(Fe 1 − x Co x ) 2 As 2 ( 0 ⩽ x ⩽ 0 . 2 ) journal March 2011
Local structural disorder and superconductivity in K x Fe 2 − y Se 2 journal June 2012
Two spatially separated phases in semiconducting Rb 0.8 Fe 1.5 S 2 journal September 2014
Magnetic properties of the covalent chain antiferromagnet RbFeSe 2 journal October 2016
Vibrational properties and magnetic specific heat of the covalent chain antiferromagnet RbFeS e 2 journal December 2018
Unconventional Superconductivity with a Sign Reversal in the Order Parameter of LaFeAsO 1 − x F x journal July 2008
Anisotropy in the Electrical Resistivity and Susceptibility of Superconducting BaFe 2 As 2 Single Crystals journal March 2009
Nonanalytic Spin Susceptibility of a Fermi Liquid: The Case of Fe-Based Pnictides journal June 2009
Itinerancy-Enhanced Quantum Fluctuation of Magnetic Moments in Iron-Based Superconductors journal September 2015
Pressure-Induced Mott Transition Followed by a 24-K Superconducting Phase in BaFe 2 S 3 journal December 2015
Superconductivity in iron compounds journal December 2011
Neutron-diffraction study in TlFeS2 and TlFeSe2 at low temperatures journal November 2014
Magnetic structure of TlFeS2 and TlFeSe2 chalcogenides journal July 2015
Spin-Wave Dispersion in KFeS 2 –a Linear Chain Antiferromagnet and a Spin Analogue of Two Iron Ferrodoxins–by Neutron Inelastic Scattering journal June 1983
Universal linear-temperature dependence of static magnetic susceptibility in iron pnictides journal May 2009
Coexistence of itinerant electrons and local moments in iron-based superconductors journal October 2009
Fe-based superconductivity with T c =31 K bordering an antiferromagnetic insulator in (Tl,K) Fe x Se 2 journal April 2011
Magnetic excitations and quantum fluctuation in the covalent-chain antiferromagnet TlFeS 2 journal May 1996
DAVE: A Comprehensive Software Suite for the Reduction, Visualization, and Analysis of Low Energy Neutron Spectroscopic Data
  • Azuah, Richard Tumanjong; Kneller, Larry R.; Qiu, Yiming
  • Journal of Research of the National Institute of Standards and Technology, Vol. 114, Issue 6 https://doi.org/10.6028/jres.114.025
journal November 2009

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