Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe2 As2

D. K. Pratt; A. Kreyssig; S. Nandi; N. Ni; A. Thaler; M. D. Lumsden; W. Tian; J. L. Zarestky; S. L. Bud'Ko; P. C. Canfield; A. I. Goldman; R. J. McQueeney

doi:10.1103/PhysRevB.81.140510

Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe₂ As₂

D. K. Pratt
, A. Kreyssig
, S. Nandi
, N. Ni
, A. Thaler
, M. D. Lumsden
, W. Tian
, J. L. Zarestky
, S. L. Bud'Ko
, P. C. Canfield
, A. I. Goldman
, R. J. McQueeney

Research output: Contribution to journal › Article › peer-review

34 Scopus citations

Abstract

Inelastic neutron-scattering measurements have been performed on underdoped Ba (Fe_1-xCo_x)₂As₂ (x=4.7%) where superconductivity and long-range antiferromagnetic (AFM) order coexist. The magnetic spectrum found in the normal state is strongly damped and develops into a magnetic resonance feature below Tc that has appreciable dispersion along c axis with a bandwidth of 3-4 meV. This is in contrast to the optimally doped x=8.0% composition, with no long-range AFM order, where the resonance exhibits a much weaker dispersion. [see M. D. Lumsden, Phys. Rev. Lett. 102, 107005 (2009).] The results suggest that the resonance dispersion arises from interlayer spin correlations present in the AFM ordered state.

Original language	English
Article number	140510
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	81
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.81.140510
State	Published - Apr 29 2010

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Pratt, D. K., Kreyssig, A., Nandi, S., Ni, N., Thaler, A., Lumsden, M. D., Tian, W., Zarestky, J. L., Bud'Ko, S. L., Canfield, P. C., Goldman, A. I., & McQueeney, R. J. (2010). Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe₂ As₂. Physical Review B - Condensed Matter and Materials Physics, 81(14), Article 140510. https://doi.org/10.1103/PhysRevB.81.140510

@article{8342d46a01524d6087debc9d8dd2ced8,

title = "Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe2 As2",

abstract = "Inelastic neutron-scattering measurements have been performed on underdoped Ba (Fe1-xCox)2As2 (x=4.7\%) where superconductivity and long-range antiferromagnetic (AFM) order coexist. The magnetic spectrum found in the normal state is strongly damped and develops into a magnetic resonance feature below Tc that has appreciable dispersion along c axis with a bandwidth of 3-4 meV. This is in contrast to the optimally doped x=8.0\% composition, with no long-range AFM order, where the resonance exhibits a much weaker dispersion. [see M. D. Lumsden, Phys. Rev. Lett. 102, 107005 (2009).] The results suggest that the resonance dispersion arises from interlayer spin correlations present in the AFM ordered state.",

author = "Pratt, \{D. K.\} and A. Kreyssig and S. Nandi and N. Ni and A. Thaler and Lumsden, \{M. D.\} and W. Tian and Zarestky, \{J. L.\} and Bud'Ko, \{S. L.\} and Canfield, \{P. C.\} and Goldman, \{A. I.\} and McQueeney, \{R. J.\}",

year = "2010",

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doi = "10.1103/PhysRevB.81.140510",

language = "English",

volume = "81",

journal = "Physical Review B - Condensed Matter and Materials Physics",

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Pratt, DK, Kreyssig, A, Nandi, S, Ni, N, Thaler, A, Lumsden, MD , Tian, W, Zarestky, JL, Bud'Ko, SL, Canfield, PC, Goldman, AI & McQueeney, RJ 2010, 'Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe₂ As₂', Physical Review B - Condensed Matter and Materials Physics, vol. 81, no. 14, 140510. https://doi.org/10.1103/PhysRevB.81.140510

TY - JOUR

T1 - Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe2 As2

AU - Pratt, D. K.

AU - Kreyssig, A.

AU - Nandi, S.

AU - Ni, N.

AU - Thaler, A.

AU - Lumsden, M. D.

AU - Tian, W.

AU - Zarestky, J. L.

AU - Bud'Ko, S. L.

AU - Canfield, P. C.

AU - Goldman, A. I.

AU - McQueeney, R. J.

PY - 2010/4/29

Y1 - 2010/4/29

N2 - Inelastic neutron-scattering measurements have been performed on underdoped Ba (Fe1-xCox)2As2 (x=4.7%) where superconductivity and long-range antiferromagnetic (AFM) order coexist. The magnetic spectrum found in the normal state is strongly damped and develops into a magnetic resonance feature below Tc that has appreciable dispersion along c axis with a bandwidth of 3-4 meV. This is in contrast to the optimally doped x=8.0% composition, with no long-range AFM order, where the resonance exhibits a much weaker dispersion. [see M. D. Lumsden, Phys. Rev. Lett. 102, 107005 (2009).] The results suggest that the resonance dispersion arises from interlayer spin correlations present in the AFM ordered state.

AB - Inelastic neutron-scattering measurements have been performed on underdoped Ba (Fe1-xCox)2As2 (x=4.7%) where superconductivity and long-range antiferromagnetic (AFM) order coexist. The magnetic spectrum found in the normal state is strongly damped and develops into a magnetic resonance feature below Tc that has appreciable dispersion along c axis with a bandwidth of 3-4 meV. This is in contrast to the optimally doped x=8.0% composition, with no long-range AFM order, where the resonance exhibits a much weaker dispersion. [see M. D. Lumsden, Phys. Rev. Lett. 102, 107005 (2009).] The results suggest that the resonance dispersion arises from interlayer spin correlations present in the AFM ordered state.

UR - https://www.scopus.com/pages/publications/77955190488

U2 - 10.1103/PhysRevB.81.140510

DO - 10.1103/PhysRevB.81.140510

M3 - Article

AN - SCOPUS:77955190488

SN - 1098-0121

VL - 81

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 14

M1 - 140510

ER -

Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe₂ As₂

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