Spin-density-wave order controlled by uniaxial stress in CeAuSb2

R. Waite; F. Orlandi; D. A. Sokolov; R. A. Ribeiro; P. C. Canfield; P. Manuel; D. D. Khalyavin; C. W. Hicks; S. M. Hayden

doi:10.48550/arXiv.2202.11569

Spin-density-wave order controlled by uniaxial stress in CeAuSb2

R. Waite, F. Orlandi, D. A. Sokolov, R. A. Ribeiro, P. C. Canfield, P. Manuel, D. D. Khalyavin, C. W. Hicks, S. M. Hayden

School of Physics

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Abstract

The tetragonal heavy-fermion compound CeAuSb2 (space group P4/nmm) exhibits incommensurate spin-density wave (SDW) order below TN≈6.5K with the propagation vector qA=(δA,δA,1/2). The application of uniaxial stress along the [010] direction induces a sudden change in the resistivity ratio ρa/ρb at a compressive strain of ϵ≈-0.5%. Here we use neutron scattering to show that the uniaxial stress induces a first-order transition to a SDW state with a different propagation vector (0,δB,1/2) with δB=0.25. The magnetic structure of the new (B) phase consists of Ce layers with ordered moments alternating with layers with zero moment stacked along the c axis. The ordered layers have an up-up-down-down configuration along the b axis. This is an unusual situation in which the loss of spatial inversion in a metallic system is driven by the magnetic order. We argue that the change in SDW wave vector leads to Fermi-surface reconstruction and a concomitant change in the transport properties. © 2022 American Physical Society.

Original language	English
Article number	224415
Pages (from-to)	1-10
Number of pages	10
Journal	Physical Review B
Volume	106
Issue number	22
DOIs	https://doi.org/10.48550/arXiv.2202.11569 https://doi.org/10.1103/PhysRevB.106.224415
Publication status	Published - 16 Dec 2022

Bibliographical note

Funding Information:
We acknowledge funding and support from the Engineering and Physical Sciences Research Council (EPSRC) Centre for Doctoral Training in Condensed Matter Physics (CDT-CMP), Grant No. EP/L015544/1. The authors thank the Science and Technology Facility Council (STFC) for the provision of neutron beam time at ISIS (UK), data available . Work done at Ames Laboratory (P.C.C., R.A.R.) was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. R.A.R. was also supported by the Gordon and Betty Moore Foundation Emergent Phenomena in Quantum Systems (EPiQS) Initiative through Grant No. GBMF4411.

Publisher Copyright:
© 2022 American Physical Society.

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title = "Spin-density-wave order controlled by uniaxial stress in CeAuSb2",

abstract = "The tetragonal heavy-fermion compound CeAuSb2 (space group P4/nmm) exhibits incommensurate spin-density wave (SDW) order below TN≈6.5K with the propagation vector qA=(δA,δA,1/2). The application of uniaxial stress along the [010] direction induces a sudden change in the resistivity ratio ρa/ρb at a compressive strain of ϵ≈-0.5%. Here we use neutron scattering to show that the uniaxial stress induces a first-order transition to a SDW state with a different propagation vector (0,δB,1/2) with δB=0.25. The magnetic structure of the new (B) phase consists of Ce layers with ordered moments alternating with layers with zero moment stacked along the c axis. The ordered layers have an up-up-down-down configuration along the b axis. This is an unusual situation in which the loss of spatial inversion in a metallic system is driven by the magnetic order. We argue that the change in SDW wave vector leads to Fermi-surface reconstruction and a concomitant change in the transport properties. {\textcopyright} 2022 American Physical Society.",

keywords = "cond-mat.str-el",

author = "R. Waite and F. Orlandi and Sokolov, {D. A.} and Ribeiro, {R. A.} and Canfield, {P. C.} and P. Manuel and Khalyavin, {D. D.} and Hicks, {C. W.} and Hayden, {S. M.}",

note = "Funding Information: We acknowledge funding and support from the Engineering and Physical Sciences Research Council (EPSRC) Centre for Doctoral Training in Condensed Matter Physics (CDT-CMP), Grant No. EP/L015544/1. The authors thank the Science and Technology Facility Council (STFC) for the provision of neutron beam time at ISIS (UK), data available . Work done at Ames Laboratory (P.C.C., R.A.R.) was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. R.A.R. was also supported by the Gordon and Betty Moore Foundation Emergent Phenomena in Quantum Systems (EPiQS) Initiative through Grant No. GBMF4411. Publisher Copyright: {\textcopyright} 2022 American Physical Society.",

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doi = "10.48550/arXiv.2202.11569",

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T1 - Spin-density-wave order controlled by uniaxial stress in CeAuSb2

AU - Waite, R.

AU - Orlandi, F.

AU - Sokolov, D. A.

AU - Ribeiro, R. A.

AU - Canfield, P. C.

AU - Manuel, P.

AU - Khalyavin, D. D.

AU - Hicks, C. W.

AU - Hayden, S. M.

N1 - Funding Information: We acknowledge funding and support from the Engineering and Physical Sciences Research Council (EPSRC) Centre for Doctoral Training in Condensed Matter Physics (CDT-CMP), Grant No. EP/L015544/1. The authors thank the Science and Technology Facility Council (STFC) for the provision of neutron beam time at ISIS (UK), data available . Work done at Ames Laboratory (P.C.C., R.A.R.) was supported by the U.S. Department of Energy, Office of Basic Energy Science, Division of Materials Sciences and Engineering. Ames Laboratory is operated for the U.S. Department of Energy by Iowa State University under Contract No. DE-AC02-07CH11358. R.A.R. was also supported by the Gordon and Betty Moore Foundation Emergent Phenomena in Quantum Systems (EPiQS) Initiative through Grant No. GBMF4411. Publisher Copyright: © 2022 American Physical Society.

PY - 2022/12/16

Y1 - 2022/12/16

N2 - The tetragonal heavy-fermion compound CeAuSb2 (space group P4/nmm) exhibits incommensurate spin-density wave (SDW) order below TN≈6.5K with the propagation vector qA=(δA,δA,1/2). The application of uniaxial stress along the [010] direction induces a sudden change in the resistivity ratio ρa/ρb at a compressive strain of ϵ≈-0.5%. Here we use neutron scattering to show that the uniaxial stress induces a first-order transition to a SDW state with a different propagation vector (0,δB,1/2) with δB=0.25. The magnetic structure of the new (B) phase consists of Ce layers with ordered moments alternating with layers with zero moment stacked along the c axis. The ordered layers have an up-up-down-down configuration along the b axis. This is an unusual situation in which the loss of spatial inversion in a metallic system is driven by the magnetic order. We argue that the change in SDW wave vector leads to Fermi-surface reconstruction and a concomitant change in the transport properties. © 2022 American Physical Society.

AB - The tetragonal heavy-fermion compound CeAuSb2 (space group P4/nmm) exhibits incommensurate spin-density wave (SDW) order below TN≈6.5K with the propagation vector qA=(δA,δA,1/2). The application of uniaxial stress along the [010] direction induces a sudden change in the resistivity ratio ρa/ρb at a compressive strain of ϵ≈-0.5%. Here we use neutron scattering to show that the uniaxial stress induces a first-order transition to a SDW state with a different propagation vector (0,δB,1/2) with δB=0.25. The magnetic structure of the new (B) phase consists of Ce layers with ordered moments alternating with layers with zero moment stacked along the c axis. The ordered layers have an up-up-down-down configuration along the b axis. This is an unusual situation in which the loss of spatial inversion in a metallic system is driven by the magnetic order. We argue that the change in SDW wave vector leads to Fermi-surface reconstruction and a concomitant change in the transport properties. © 2022 American Physical Society.

KW - cond-mat.str-el

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U2 - 10.48550/arXiv.2202.11569

DO - 10.48550/arXiv.2202.11569

M3 - Article (Academic Journal)

SN - 2469-9950

VL - 106

SP - 1

EP - 10

JO - Physical Review B

JF - Physical Review B

IS - 22

M1 - 224415

ER -

Spin-density-wave order controlled by uniaxial stress in CeAuSb2

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