Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe 2As 2

G. S. Tucker; D. K. Pratt; M. G. Kim; S. Ran; A. Thaler; G. E. Granroth; K. Marty; W. Tian; J. L. Zarestky; M. D. Lumsden; S. L. Bud'Ko; P. C. Canfield; A. Kreyssig; A. I. Goldman; R. J. McQueeney

doi:10.1103/PhysRevB.86.020503

Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe ₂As ₂

G. S. Tucker
, D. K. Pratt
, M. G. Kim
, S. Ran
, A. Thaler
, G. E. Granroth
, K. Marty
, W. Tian
, J. L. Zarestky
, M. D. Lumsden
, S. L. Bud'Ko
, P. C. Canfield
, A. Kreyssig
, A. I. Goldman
, R. J. McQueeney

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

46 Scopus citations

Abstract

Inelastic neutron scattering measurements on Ba(Fe _0.925Mn _0.075)2As ₂ manifest spin fluctuations at two different wave vectors, Q _stripe=(12,12,1) and Q _Néel=(1,0,1), corresponding to the expected stripe spin-density wave order and checkerboard antiferromagnetic order in the tetragonal I4/mmm cell, respectively. Below T _N=80K, long-range stripe magnetic ordering occurs and sharp spin wave excitations appear at Q _stripe while broad and diffusive spin fluctuations remain at Q _Néel at all temperatures. Low concentrations of Mn dopants nucleate local moment spin fluctuations at Q _Néel that compete with itinerant spin fluctuations at Q _stripe and may disrupt the development of superconductivity.

Original language	English
Article number	020503
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	86
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevB.86.020503
State	Published - Jul 13 2012

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Tucker, G. S., Pratt, D. K., Kim, M. G., Ran, S., Thaler, A., Granroth, G. E., Marty, K., Tian, W., Zarestky, J. L., Lumsden, M. D., Bud'Ko, S. L., Canfield, P. C., Kreyssig, A., Goldman, A. I., & McQueeney, R. J. (2012). Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe ₂As ₂ Physical Review B - Condensed Matter and Materials Physics, 86(2), Article 020503. https://doi.org/10.1103/PhysRevB.86.020503

@article{28496643f91449868d320e597f0b5176,

title = "Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe 2As 2 ",

abstract = "Inelastic neutron scattering measurements on Ba(Fe 0.925Mn 0.075)2As 2 manifest spin fluctuations at two different wave vectors, Q stripe=(12,12,1) and Q N{\'e}el=(1,0,1), corresponding to the expected stripe spin-density wave order and checkerboard antiferromagnetic order in the tetragonal I4/mmm cell, respectively. Below T N=80K, long-range stripe magnetic ordering occurs and sharp spin wave excitations appear at Q stripe while broad and diffusive spin fluctuations remain at Q N{\'e}el at all temperatures. Low concentrations of Mn dopants nucleate local moment spin fluctuations at Q N{\'e}el that compete with itinerant spin fluctuations at Q stripe and may disrupt the development of superconductivity.",

author = "Tucker, \{G. S.\} and Pratt, \{D. K.\} and Kim, \{M. G.\} and S. Ran and A. Thaler and Granroth, \{G. E.\} and K. Marty and W. Tian and Zarestky, \{J. L.\} and Lumsden, \{M. D.\} and Bud'Ko, \{S. L.\} and Canfield, \{P. C.\} and A. Kreyssig and Goldman, \{A. I.\} and McQueeney, \{R. J.\}",

year = "2012",

month = jul,

day = "13",

doi = "10.1103/PhysRevB.86.020503",

language = "English",

volume = "86",

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

issn = "1098-0121",

publisher = "American Physical Society",

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Tucker, GS, Pratt, DK, Kim, MG, Ran, S, Thaler, A, Granroth, GE, Marty, K, Tian, W, Zarestky, JL, Lumsden, MD, Bud'Ko, SL, Canfield, PC, Kreyssig, A, Goldman, AI & McQueeney, RJ 2012, 'Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe ₂As ₂ ', Physical Review B - Condensed Matter and Materials Physics, vol. 86, no. 2, 020503. https://doi.org/10.1103/PhysRevB.86.020503

TY - JOUR

T1 - Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe 2As 2

AU - Tucker, G. S.

AU - Pratt, D. K.

AU - Kim, M. G.

AU - Ran, S.

AU - Thaler, A.

AU - Granroth, G. E.

AU - Marty, K.

AU - Tian, W.

AU - Zarestky, J. L.

AU - Lumsden, M. D.

AU - Bud'Ko, S. L.

AU - Canfield, P. C.

AU - Kreyssig, A.

AU - Goldman, A. I.

AU - McQueeney, R. J.

PY - 2012/7/13

Y1 - 2012/7/13

N2 - Inelastic neutron scattering measurements on Ba(Fe 0.925Mn 0.075)2As 2 manifest spin fluctuations at two different wave vectors, Q stripe=(12,12,1) and Q Néel=(1,0,1), corresponding to the expected stripe spin-density wave order and checkerboard antiferromagnetic order in the tetragonal I4/mmm cell, respectively. Below T N=80K, long-range stripe magnetic ordering occurs and sharp spin wave excitations appear at Q stripe while broad and diffusive spin fluctuations remain at Q Néel at all temperatures. Low concentrations of Mn dopants nucleate local moment spin fluctuations at Q Néel that compete with itinerant spin fluctuations at Q stripe and may disrupt the development of superconductivity.

AB - Inelastic neutron scattering measurements on Ba(Fe 0.925Mn 0.075)2As 2 manifest spin fluctuations at two different wave vectors, Q stripe=(12,12,1) and Q Néel=(1,0,1), corresponding to the expected stripe spin-density wave order and checkerboard antiferromagnetic order in the tetragonal I4/mmm cell, respectively. Below T N=80K, long-range stripe magnetic ordering occurs and sharp spin wave excitations appear at Q stripe while broad and diffusive spin fluctuations remain at Q Néel at all temperatures. Low concentrations of Mn dopants nucleate local moment spin fluctuations at Q Néel that compete with itinerant spin fluctuations at Q stripe and may disrupt the development of superconductivity.

UR - https://www.scopus.com/pages/publications/84863816294

U2 - 10.1103/PhysRevB.86.020503

DO - 10.1103/PhysRevB.86.020503

M3 - Article

AN - SCOPUS:84863816294

SN - 1098-0121

VL - 86

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 2

M1 - 020503

ER -

Competition between stripe and checkerboard magnetic instabilities in Mn-doped BaFe ₂As ₂

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