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Title: Uniaxial strain control of spin-polarization in multicomponent nematic order of BaFe2As2

Journal Article · · Nature Communications

The iron-based high temperature superconductors exhibit a rich phase diagram reflecting a complex interplay between spin, lattice, and orbital degrees of freedom. The nematic state observed in these compounds epitomizes this complexity, by entangling a real-space anisotropy in the spin fluctuation spectrum with ferro-orbital order and an orthorhombic lattice distortion. A subtle and less-explored facet of the interplay between these degrees of freedom arises from the sizable spin-orbit coupling present in these systems, which translates anisotropies in real space into anisotropies in spin space. We present nuclear magnetic resonance studies, which reveal that the magnetic fluctuation spectrum in the paramagnetic phase of BaFe2As2 acquires an anisotropic response in spin-space upon application of a tetragonal symmetry-breaking strain field. Lastly, our results unveil an internal spin structure of the nematic order parameter, indicating that electronic nematic materials may offer a route to magneto-mechanical control.

Research Organization:
Univ. of California, Davis, CA (United States); Ames Laboratory (AMES), Ames, IA (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES). Materials Sciences & Engineering Division; National Science Foundation (NSF)
Grant/Contract Number:
NA0002908; AC02-07CH11358; DMR-1506961; SC0012336
OSTI ID:
1755110
Alternate ID(s):
OSTI ID: 1433673
Report Number(s):
IS-J-9635; TRN: US2205457
Journal Information:
Nature Communications, Vol. 9, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 37 works
Citation information provided by
Web of Science

References (56)

NMR Search for the Spin Nematic State in a LaFeAsO Single Crystal journal December 2012
Spin anisotropy due to spin-orbit coupling in optimally hole-doped Ba 0.67 K 0.33 Fe 2 As 2 journal December 2016
Angle-resolved NMR: Quantitative theory of 75 As T 1 relaxation rate in BaFe 2 As 2 journal November 2011
Nematic spin correlations in the tetragonal state of uniaxial-strained BaFe2-xNixAs2 journal July 2014
Manifestations of nematic degrees of freedom in the magnetic, elastic, and superconducting properties of the iron pnictides journal July 2012
Effects of Co substitution on thermodynamic and transport properties and anisotropic H c 2 in Ba ( Fe 1 x Co x ) 2 As 2 single crystals journal December 2008
Effect of tensile stress on the in-plane resistivity anisotropy in BaFe 2 As 2 journal April 2012
Scaling between Magnetic and Lattice Fluctuations in Iron Pnictide Superconductors journal September 2013
Strong Increase of Tc of Sr2RuO4 Under Both Tensile and Compressive Strain journal April 2014
Direct observation of spin–orbit coupling in iron-based superconductors journal December 2015
Energy dependence of the spin excitation anisotropy in uniaxial-strained BaFe 1.9 Ni 0.1 As 2 journal November 2015
Effect of tensile stress on the in-plane resistivity anisotropy in BaFe2As2 text January 2011
Divergent Nematic Susceptibility in an Iron Arsenide Superconductor journal August 2012
Orbital-driven nematicity in FeSe journal November 2014
Uniaxial-strain mechanical detwinning of CaFe 2 As 2 and BaFe 2 As 2 crystals: Optical and transport study journal May 2010
Crossover from spin waves to diffusive spin excitations in underdoped Ba ( Fe 1 x Co x ) 2 As 2 journal May 2014
Nematic Fermi Fluids in Condensed Matter Physics journal August 2010
Manifestations of nematic degrees of freedom in the magnetic, elastic, and superconducting properties of the iron pnictides text January 2012
Piezoelectric-based apparatus for strain tuning text January 2014
Spin reorientation driven by the interplay between spin-orbit coupling and Hund's rule coupling in iron pnictides journal December 2015
Spin Excitation Anisotropy as a Probe of Orbital Ordering in the Paramagnetic Tetragonal Phase of Superconducting BaFe 1.904 Ni 0.096 As 2 journal September 2013
Electronic nematic correlations in the stress-free tetragonal state of BaFe 2 x Ni x As 2 journal October 2015
Antiferromagnetic order and spin dynamics in iron-based superconductors journal August 2015
Coexistence of antiferromagnetic and ferromagnetic spin correlations in Ca ( Fe 1 x Co x ) 2 As 2 revealed by As 75 nuclear magnetic resonance journal November 2016
Charge Nematicity and Electronic Raman Scattering in Iron-based Superconductors text January 2015
NMR study of nematic spin fluctuations in a detwinned single crystal of underdoped Ba ( Fe 1 x Co x ) 2 As 2 journal October 2016
Local magnetic anisotropy in BaFe$_2$As$_2$: a polarized inelastic neutron scattering study text January 2012
Critical behavior of the spin density wave transition in underdoped Ba(Fe 1 x Co x ) 2 As 2 ( x 0.05 ): As 75 NMR investigation journal June 2014
Antiferromagnetic order and spin dynamics in iron-based superconductors text January 2015
NMR evidence for inhomogeneous glassy behavior driven by nematic fluctuations in iron arsenide superconductors journal October 2015
Commensurate Itinerant Antiferromagnetism in BaFe2As2: 75As-NMR Studies on a Self-Flux Grown Single Crystal text January 2008
In-plane spin excitation anisotropy in the paramagnetic state of NaFeAs journal October 2013
Observation of Incipient Charge Nematicity in Ba ( Fe 1 X Co X ) 2 As 2 journal December 2013
Nematic State of the Pnictides Stabilized by the Interplay Between Spin, Orbital, and Lattice Degrees of Freedom text January 2013
Spin excitation anisotropy in the paramagnetic tetragonal phase of BaFe 2 As 2 journal July 2017
Orbital order and spin nematicity in the tetragonal phase of the electron-doped iron pnictides NaFe 1 x Co x As journal February 2016
Preemptive nematic order, pseudogap, and orbital order in the iron pnictides text January 2011
Charge nematicity and electronic Raman scattering in iron-based superconductors journal January 2016
Local magnetic anisotropy in BaFe 2 As 2 : A polarized inelastic neutron scattering study journal August 2012
FeAs-Based Superconductivity: A Case Study of the Effects of Transition Metal Doping on BaFe 2 As 2 journal August 2010
Nodeless energy gaps of single-crystalline Ba 0 . 68 K 0 . 32 Fe 2 As 2 as seen via As 75 NMR journal April 2011
Direct observation of spin-orbit coupling in iron-based superconductors text January 2014
What drives nematic order in iron-based superconductors? journal January 2014
FeAs-based superconductivity: a case study of the effects of transition metal doping on BaFe2As2 text January 2010
Scaling between magnetic and lattice fluctuations in iron-pnictide superconductors text January 2013
In-Plane Resistivity Anisotropy in an Underdoped Iron Arsenide Superconductor journal August 2010
Piezoelectric-based apparatus for strain tuning journal June 2014
Commensurate Itinerant Antiferromagnetism in BaFe 2 As 2 : 75 As-NMR Studies on a Self-Flux Grown Single Crystal journal November 2008
Preemptive nematic order, pseudogap, and orbital order in the iron pnictides journal January 2012
NMR evidence for inhomogeneous glassy behavior driven by nematic fluctuations in iron arsenide superconductors text January 2015
Nematic State of Pnictides Stabilized by Interplay between Spin, Orbital, and Lattice Degrees of Freedom journal July 2013
European harmonised system for training and qualification of adhesive bonding personnel journal January 2013
59Co and 75As NMR Investigation of the Lightly Doped Ba[Fe(1-x)Co(x)]2As2 (x =0.02, 0.04) text January 2009
Evidence for an electron nematic phase transition in underdoped iron pnictide superconductors text January 2010
Nematic order in iron superconductors - who is in the driver's seat? text January 2013
Nematic spin correlations in the tetragonal state of uniaxial strained BaFe2-xNixAs2 text January 2014

Cited By (14)

Magnetic phase diagram of the iron pnictides in the presence of spin-orbit coupling: Frustration between C 2 and C 4 magnetic phases journal July 2018
Apparatus Design for Measuring of the Strain Dependence of the Seebeck Coefficient of Single Crystals text January 2021
Apparatus design for measuring of the strain dependence of the Seebeck coefficient of single crystals journal February 2020
Piezoelectric-based uniaxial pressure cell with integrated force and displacement sensors journal February 2019
The complex non-collinear magnetic orderings in Ba 2 YOsO 6 : a new approach to tuning spin-lattice interactions and controlling magnetic orderings in frustrated complex oxides journal August 2019
Probing the reconstructed Fermi surface of antiferromagnetic BaFe2As2 in one domain journal July 2019
Orbital loop currents in iron-based superconductors text January 2017
Piezoelectric-based uniaxial pressure cell with integrated force and displacement sensors preprint January 2018
Orbital loop currents in iron-based superconductors journal April 2018
Symmetric and antisymmetric strain as continuous tuning parameters for electronic nematic order journal December 2018
Intertwined spin-orbital coupled orders in the iron-based superconductors journal July 2019
Emergent Magnetic Degeneracy in Iron Pnictides due to the Interplay between Spin-Orbit Coupling and Quantum Fluctuations journal July 2018
Probing the reconstructed Fermi surface of antiferromagnetic $BaFe_{2}As_{2}$ in one domain text January 2019
A tunable stress dilatometer and measurement of the thermal expansion under uniaxial stress of Mn3Sn journal December 2020