Magnetic order and instability in newly synthesized CoSeAs marcasite

Yiyao Chen; G. Yumnam; A. Dahal; J. A. Rodriguez-Rivera; Guangyong Xu; T. W. Heitmann; D. K. Singh

doi:10.1103/PhysRevResearch.2.023168

Magnetic order and instability in newly synthesized CoSeAs marcasite

Yiyao Chen, G. Yumnam, A. Dahal, J. A. Rodriguez-Rivera, Guangyong Xu, T. W. Heitmann, D. K. Singh

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

Abstract

Marcasite class of compounds provide a facile platform to explore novel phenomena of fundamental and technological importance, such as unconventional superconductivity or high-performance electrocatalyst. We report the synthesis and experimental investigation of a marcasite CoSeAs in this paper. Experimental investigation of this material using neutron scattering measurements reveals weak magnetic correlation of cobalt ions below T=36.2 K. The modest isotropic exchange interaction between cobalt moments, inferred from random phase approximation analysis, hints of a magnetically unstable environment. It is a desirable characteristic to induce unconventional superconductivity via chemical pressure application.

Original language	English
Article number	023168
Journal	Physical Review Research
Volume	2
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevResearch.2.023168
State	Published - May 2020
Externally published	Yes

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title = "Magnetic order and instability in newly synthesized CoSeAs marcasite",

abstract = "Marcasite class of compounds provide a facile platform to explore novel phenomena of fundamental and technological importance, such as unconventional superconductivity or high-performance electrocatalyst. We report the synthesis and experimental investigation of a marcasite CoSeAs in this paper. Experimental investigation of this material using neutron scattering measurements reveals weak magnetic correlation of cobalt ions below T=36.2 K. The modest isotropic exchange interaction between cobalt moments, inferred from random phase approximation analysis, hints of a magnetically unstable environment. It is a desirable characteristic to induce unconventional superconductivity via chemical pressure application.",

author = "Yiyao Chen and G. Yumnam and A. Dahal and Rodriguez-Rivera, {J. A.} and Guangyong Xu and Heitmann, {T. W.} and Singh, {D. K.}",

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AU - Chen, Yiyao

AU - Yumnam, G.

AU - Dahal, A.

AU - Rodriguez-Rivera, J. A.

AU - Xu, Guangyong

AU - Heitmann, T. W.

AU - Singh, D. K.

PY - 2020/5

Y1 - 2020/5

N2 - Marcasite class of compounds provide a facile platform to explore novel phenomena of fundamental and technological importance, such as unconventional superconductivity or high-performance electrocatalyst. We report the synthesis and experimental investigation of a marcasite CoSeAs in this paper. Experimental investigation of this material using neutron scattering measurements reveals weak magnetic correlation of cobalt ions below T=36.2 K. The modest isotropic exchange interaction between cobalt moments, inferred from random phase approximation analysis, hints of a magnetically unstable environment. It is a desirable characteristic to induce unconventional superconductivity via chemical pressure application.

AB - Marcasite class of compounds provide a facile platform to explore novel phenomena of fundamental and technological importance, such as unconventional superconductivity or high-performance electrocatalyst. We report the synthesis and experimental investigation of a marcasite CoSeAs in this paper. Experimental investigation of this material using neutron scattering measurements reveals weak magnetic correlation of cobalt ions below T=36.2 K. The modest isotropic exchange interaction between cobalt moments, inferred from random phase approximation analysis, hints of a magnetically unstable environment. It is a desirable characteristic to induce unconventional superconductivity via chemical pressure application.

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JO - Physical Review Research

JF - Physical Review Research

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Magnetic order and instability in newly synthesized CoSeAs marcasite

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