Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe1-xSex ( x≤0.2 )

Xu, Zhijun; Schneeloch, J. A.; Yi, Ming; Zhao, Yang; Matsuda, Masaaki; Pajerowski, D. M.; Chi, Songxue; Birgeneau, R. J.; Gu, Genda; Tranquada, J. M.; Xu, Guangyong

doi:10.1103/PhysRevB.97.214511

Title: Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed ${FeTe}_{1 - x} {Se}_{x}$ ( $x \leq 0.2$ )

Abstract

In as-grown bulk crystals of Fe_1+yTe_1-xSe_x with x≲0.3, excess Fe (y>0) is inevitable and correlates with a suppression of superconductivity. At the same time, there remains the question as to whether the character of the antiferromagnetic correlations associated with the enhanced anion height above the Fe planes in Te-rich samples is compatible with superconductivity. To test this, we have annealed as-grown crystals with x=0.1 and 0.2 in Te vapor, effectively reducing the excess Fe and inducing bulk superconductivity. Inelastic neutron scattering measurements reveal low-energy magnetic excitations consistent with short-range correlations of the double-stripe type; nevertheless, cooling into the superconducting state results in a spin gap and a spin resonance, with the extra signal in the resonance being short range with a mixed single-stripe/double-stripe character, which is different than other iron-based superconductors. The mixed magnetic character of these superconducting samples does not appear to be trivially explainable by inhomogeneity.

Authors:

Xu, Zhijun ^[1]; Schneeloch, J. A. ^[2]; Yi, Ming ^[3]; Zhao, Yang ^[4]; Matsuda, Masaaki ^[5]; Pajerowski, D. M. ^[5]; Chi, Songxue ^[5]; Birgeneau, R. J. ^[3]; Gu, Genda ^[6]; Tranquada, J. M. ^[6]; Xu, Guangyong ^[7]

National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States); Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States); Stony Brook Univ., Stony Brook, NY (United States)
Univ. of California, Berkeley, CA (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Univ. of Maryland, College Park, MD (United States)
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Brookhaven National Lab. (BNL), Upton, NY (United States)
National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States); Brookhaven National Lab. (BNL), Upton, NY (United States)

Publication Date:: Thu Jun 14 00:00:00 EDT 2018

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division

OSTI Identifier:: 1440360

Alternate Identifier(s):: OSTI ID: 1454307; OSTI ID: 1460176; OSTI ID: 1466717

Report Number(s):: BNL-205734-2018-JAAM
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1900728

Grant/Contract Number:: AC05-00OR22725; SC0012704; AC02-05CH1123; AC02-05CH11231

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 97; Journal Issue: 21; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 36 MATERIALS SCIENCE; superconductivity; inelastic neutron scattering

Citation Formats


                    Xu, Zhijun, Schneeloch, J. A., Yi, Ming, Zhao, Yang, Matsuda, Masaaki, Pajerowski, D. M., Chi, Songxue, Birgeneau, R. J., Gu, Genda, Tranquada, J. M., and Xu, Guangyong. Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe1-xSex ( x≤0.2 ).  United States: N. p., 2018. 
Web.  doi:10.1103/PhysRevB.97.214511.

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                    Xu, Zhijun, Schneeloch, J. A., Yi, Ming, Zhao, Yang, Matsuda, Masaaki, Pajerowski, D. M., Chi, Songxue, Birgeneau, R. J., Gu, Genda, Tranquada, J. M., & Xu, Guangyong. Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe1-xSex ( x≤0.2 ).  United States.  https://doi.org/10.1103/PhysRevB.97.214511

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                    Xu, Zhijun, Schneeloch, J. A., Yi, Ming, Zhao, Yang, Matsuda, Masaaki, Pajerowski, D. M., Chi, Songxue, Birgeneau, R. J., Gu, Genda, Tranquada, J. M., and Xu, Guangyong. Thu .  
"Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe1-xSex ( x≤0.2 )".  United States.  https://doi.org/10.1103/PhysRevB.97.214511.  https://www.osti.gov/servlets/purl/1440360.

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@article{osti_1440360,

  title        = {Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe1-xSex ( x≤0.2 )},

  author       = {Xu, Zhijun and Schneeloch, J. A. and Yi, Ming and Zhao, Yang and Matsuda, Masaaki and Pajerowski, D. M. and Chi, Songxue and Birgeneau, R. J. and Gu, Genda and Tranquada, J. M. and Xu, Guangyong},

  abstractNote = {In as-grown bulk crystals of Fe1+yTe1-xSex with x≲0.3, excess Fe (y>0) is inevitable and correlates with a suppression of superconductivity. At the same time, there remains the question as to whether the character of the antiferromagnetic correlations associated with the enhanced anion height above the Fe planes in Te-rich samples is compatible with superconductivity. To test this, we have annealed as-grown crystals with x=0.1 and 0.2 in Te vapor, effectively reducing the excess Fe and inducing bulk superconductivity. Inelastic neutron scattering measurements reveal low-energy magnetic excitations consistent with short-range correlations of the double-stripe type; nevertheless, cooling into the superconducting state results in a spin gap and a spin resonance, with the extra signal in the resonance being short range with a mixed single-stripe/double-stripe character, which is different than other iron-based superconductors. The mixed magnetic character of these superconducting samples does not appear to be trivially explainable by inhomogeneity.},

  doi          = {10.1103/PhysRevB.97.214511},

  journal      = {Physical Review B},

  number       = 21,

  volume       = 97,

  place        = {United States},

  year         = {Thu Jun 14 00:00:00 EDT 2018},

  month        = {Thu Jun 14 00:00:00 EDT 2018}

}

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Cited by: 7 works

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Figures / Tables:

FIG. 1: Phase diagram of FeTe_1−$x$Se_$x$as function of Se content ($x$) and temperature ($T$). The red circles represent the Néel temperature ($T$_$N$ ); blue circles represent the as-grown samples’ superconducting onset temperature $T$_$c$; purple circles represent the superconducting onset temperature in the treated samples. Data from Refs. 38 andmore »

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Works referencing / citing this record:

Plaquette instability competing with bicollinear ground state in detwinned FeTe
journal, August 2019

Tam, David W.; Lai, Hsin-Hua; Hu, Jin
Physical Review B, Vol. 100, Issue 5
DOI: 10.1103/physrevb.100.054405

Bulk superconductivity in ${FeTe}_{1 - x} {Se}_{x}$ via physicochemical pumping of excess iron
journal, November 2019

Dong, Lianyang; Zhao, He; Zeljkovic, Ilija
Physical Review Materials, Vol. 3, Issue 11
DOI: 10.1103/physrevmaterials.3.114801

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Surprising loss of three-dimensionality in low-energy spin correlations on approaching superconductivity in ${Fe}_{1 + y} {Te}_{1 - x} {Se}_{x}$

Journal Article Xu, Zhijun ; Schneeloch, J. A. ; Wen, Jinsheng ; ... - Physical Review B

We report inelastic neutron scattering measurements of low-energy (ω10 meV) magnetic excitations in the "11" system Fe_1+yTe_1-xSe_x. The spin correlations are two-dimensional (2D) in the superconducting samples at low temperature, but appear much more three-dimensional (3D) when the temperature rises well above Tc~15 K, with a clear increase of the (dynamic) spin correlation length perpendicular to the Fe planes. This behavior is extremely unusual; typically, the suppression of thermal fluctuations at low temperature would favor the enhancement of 3D correlations, or even ordering, and the reversion to 2D cannot be naturally explained when only the spin degree of freedom ismore »« less
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https://doi.org/10.1103/PhysRevB.96.134505

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Title: Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed FeTe 1 - x Se x ( x ≤ 0.2 )

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Title: Coexistence of superconductivity and short-range double-stripe spin correlations in Te-vapor annealed ${FeTe}_{1 - x} {Se}_{x}$ ( $x \leq 0.2$ )

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journal, July 2010

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journal, February 2007

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journal, November 2013

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journal, September 2010

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journal, July 2010

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journal, February 2013

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journal, May 2011

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journal, March 2010

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journal, June 2013

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journal, March 2009

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journal, December 2010

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journal, August 2010

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journal, January 2012

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journal, January 1996

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journal, June 2009

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journal, December 2009

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journal, June 2010

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journal, August 2009

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journal, June 2004

Unconventional superconductivity in Ba0.6K0.4Fe2As2 from inelastic neutron scattering
journal, December 2008

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journal, August 2015

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journal, June 2004

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journal, August 2015

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journal, March 2010

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journal, September 2007

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journal, September 2009

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journal, December 1991

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journal, March 2015

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journal, January 2010

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journal, January 2014

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journal, April 2010

Neutron scattering from magnetic excitations in Bi2Sr2CaCu2O8+δ
journal, April 1999

Investigation of the Spin-Glass Regime between the Antiferromagnetic and Superconducting Phases in Fe _{1+ y} Se _x Te _{1- x}
journal, November 2010

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journal, September 2011

Orbital superconductivity, defects, and pinned nematic fluctuations in the doped iron chalcogenide ${FeSe}_{0.45} {Te}_{0.55}$
journal, August 2017

Resonance as a measure of pairing correlations in the high-Tc superconductor YBa2Cu3O6.6
journal, August 2000

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journal, November 2012

Effect of magnetic field on the spin resonance in ${FeTe}_{0.5} {Se}_{0.5}$ as seen via inelastic neutron scattering
journal, March 2010

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journal, November 2013

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journal, October 2009

Neutron scattering resonance and the iron-pnictide superconducting gap
journal, April 2009

Surprising loss of three-dimensionality in low-energy spin correlations on approaching superconductivity in ${Fe}_{1 + y} {Te}_{1 - x} {Se}_{x}$
journal, October 2017

Revised phase diagram for the FeTe $_{1 - x}$ Se $_{x}$ system with fewer excess Fe atoms
journal, December 2011

Neutron studies of the iron-based family of high TC magnetic superconductors
journal, May 2009

Spin Gap and Resonance at the Nesting Wave Vector in Superconducting ${FeSe}_{0.4} {Te}_{0.6}$
journal, August 2009

Unified Picture for Magnetic Correlations in Iron-Based Superconductors
journal, September 2010

A common thread: The pairing interaction for unconventional superconductors
journal, October 2012

Unconventional Temperature Enhanced Magnetism in ${Fe}_{1.1} Te$
journal, November 2011

Plaquette instability competing with bicollinear ground state in detwinned FeTe
journal, August 2019

Bulk superconductivity in ${FeTe}_{1 - x} {Se}_{x}$ via physicochemical pumping of excess iron
journal, November 2019