Anomalous temperature-dependent magnetization in the nearly collinear antiferromagnet Y2Co3

Yunshu Shi; Huibo Cao; Hung Cheng Wu; Li Yin; Neil Harrison; David S. Parker; Tushar Bhowmick; Tessa McNamee; Fatemeh Safari; Sergey L. Bud'Ko; James C. Fettinger; Susan M. Kauzlarich; Peter Klavins; Dmitry Popov; Ravhi Kumar; Russell J. Hemley; Shanti Deemyad; Taku J. Sato; Paul C. Canfield; Valentin Taufour

doi:10.1103/PhysRevB.110.235159

Anomalous temperature-dependent magnetization in the nearly collinear antiferromagnet Y2Co3

Yunshu Shi, Huibo Cao, Hung Cheng Wu, Li Yin, Neil Harrison, David S. Parker, Tushar Bhowmick, Tessa McNamee, Fatemeh Safari, Sergey L. Bud'Ko, James C. Fettinger, Susan M. Kauzlarich, Peter Klavins, Dmitry Popov, Ravhi Kumar, Russell J. Hemley, Shanti Deemyad, Taku J. Sato, Paul C. Canfield, Valentin Taufour

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Abstract

Y2Co3 is a newly discovered antiferromagnetic (AFM) compound with distorted kagome layers. Previous investigations via bulk magnetization measurements suggested a complex noncollinear magnetic behavior, with magnetic moments primarily anti-aligned along the b axis and some canting towards the ac plane. In this study, we report the magnetic structure of Y2Co3 to be an A-type AFM structure with ferromagnetic (FM) interactions within the distorted kagome plane and an interplane antiferromagnetic interaction, as determined by single-crystal neutron diffraction. The magnetic moments align along the b axis, with minimal canting towards the c axis, at odds with the previous interpretation of bulk magnetization measurements. The magnetic moments on the two distinct Co sites are [0, -0.68(3), 0] μB and [0, 1.25(4), 0.07(1)] μB. We attribute the previously reported "noncollinear"behavior to the considerable temperature dependence of itinerant AFM exchange interactions, induced by thermal contraction along the b axis. Additionally, our examination of lattice constants through pressure studies reveals compensating effects on FM and AFM interactions, resulting in negligible pressure dependence of TN.

Original language	English
Article number	235159
Journal	Physical Review B
Volume	110
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevB.110.235159
State	Published - Dec 15 2024

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Shi, Y., Cao, H., Wu, H. C., Yin, L., Harrison, N., Parker, D. S., Bhowmick, T., McNamee, T., Safari, F., Bud'Ko, S. L., Fettinger, J. C., Kauzlarich, S. M., Klavins, P., Popov, D., Kumar, R., Hemley, R. J., Deemyad, S., Sato, T. J., Canfield, P. C., & Taufour, V. (2024). Anomalous temperature-dependent magnetization in the nearly collinear antiferromagnet Y2Co3. Physical Review B, 110(23), Article 235159. https://doi.org/10.1103/PhysRevB.110.235159

@article{020d8d04cec644abaf7807a022530ea1,

title = "Anomalous temperature-dependent magnetization in the nearly collinear antiferromagnet Y2Co3",

abstract = "Y2Co3 is a newly discovered antiferromagnetic (AFM) compound with distorted kagome layers. Previous investigations via bulk magnetization measurements suggested a complex noncollinear magnetic behavior, with magnetic moments primarily anti-aligned along the b axis and some canting towards the ac plane. In this study, we report the magnetic structure of Y2Co3 to be an A-type AFM structure with ferromagnetic (FM) interactions within the distorted kagome plane and an interplane antiferromagnetic interaction, as determined by single-crystal neutron diffraction. The magnetic moments align along the b axis, with minimal canting towards the c axis, at odds with the previous interpretation of bulk magnetization measurements. The magnetic moments on the two distinct Co sites are [0, -0.68(3), 0] μB and [0, 1.25(4), 0.07(1)] μB. We attribute the previously reported {"}noncollinear{"}behavior to the considerable temperature dependence of itinerant AFM exchange interactions, induced by thermal contraction along the b axis. Additionally, our examination of lattice constants through pressure studies reveals compensating effects on FM and AFM interactions, resulting in negligible pressure dependence of TN.",

author = "Yunshu Shi and Huibo Cao and Wu, {Hung Cheng} and Li Yin and Neil Harrison and Parker, {David S.} and Tushar Bhowmick and Tessa McNamee and Fatemeh Safari and Bud'Ko, {Sergey L.} and Fettinger, {James C.} and Kauzlarich, {Susan M.} and Peter Klavins and Dmitry Popov and Ravhi Kumar and Hemley, {Russell J.} and Shanti Deemyad and Sato, {Taku J.} and Canfield, {Paul C.} and Valentin Taufour",

note = "Publisher Copyright: {\textcopyright} 2024 American Physical Society. ",

year = "2024",

month = dec,

day = "15",

doi = "10.1103/PhysRevB.110.235159",

language = "English",

volume = "110",

journal = "Physical Review B",

issn = "2469-9950",

publisher = "American Physical Society",

number = "23",

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Shi, Y, Cao, H, Wu, HC, Yin, L, Harrison, N, Parker, DS, Bhowmick, T, McNamee, T, Safari, F, Bud'Ko, SL, Fettinger, JC, Kauzlarich, SM, Klavins, P, Popov, D, Kumar, R, Hemley, RJ, Deemyad, S, Sato, TJ, Canfield, PC & Taufour, V 2024, 'Anomalous temperature-dependent magnetization in the nearly collinear antiferromagnet Y2Co3', Physical Review B, vol. 110, no. 23, 235159. https://doi.org/10.1103/PhysRevB.110.235159

TY - JOUR

T1 - Anomalous temperature-dependent magnetization in the nearly collinear antiferromagnet Y2Co3

AU - Shi, Yunshu

AU - Cao, Huibo

AU - Wu, Hung Cheng

AU - Yin, Li

AU - Harrison, Neil

AU - Parker, David S.

AU - Bhowmick, Tushar

AU - McNamee, Tessa

AU - Safari, Fatemeh

AU - Bud'Ko, Sergey L.

AU - Fettinger, James C.

AU - Kauzlarich, Susan M.

AU - Klavins, Peter

AU - Popov, Dmitry

AU - Kumar, Ravhi

AU - Hemley, Russell J.

AU - Deemyad, Shanti

AU - Sato, Taku J.

AU - Canfield, Paul C.

AU - Taufour, Valentin

PY - 2024/12/15

Y1 - 2024/12/15

N2 - Y2Co3 is a newly discovered antiferromagnetic (AFM) compound with distorted kagome layers. Previous investigations via bulk magnetization measurements suggested a complex noncollinear magnetic behavior, with magnetic moments primarily anti-aligned along the b axis and some canting towards the ac plane. In this study, we report the magnetic structure of Y2Co3 to be an A-type AFM structure with ferromagnetic (FM) interactions within the distorted kagome plane and an interplane antiferromagnetic interaction, as determined by single-crystal neutron diffraction. The magnetic moments align along the b axis, with minimal canting towards the c axis, at odds with the previous interpretation of bulk magnetization measurements. The magnetic moments on the two distinct Co sites are [0, -0.68(3), 0] μB and [0, 1.25(4), 0.07(1)] μB. We attribute the previously reported "noncollinear"behavior to the considerable temperature dependence of itinerant AFM exchange interactions, induced by thermal contraction along the b axis. Additionally, our examination of lattice constants through pressure studies reveals compensating effects on FM and AFM interactions, resulting in negligible pressure dependence of TN.

AB - Y2Co3 is a newly discovered antiferromagnetic (AFM) compound with distorted kagome layers. Previous investigations via bulk magnetization measurements suggested a complex noncollinear magnetic behavior, with magnetic moments primarily anti-aligned along the b axis and some canting towards the ac plane. In this study, we report the magnetic structure of Y2Co3 to be an A-type AFM structure with ferromagnetic (FM) interactions within the distorted kagome plane and an interplane antiferromagnetic interaction, as determined by single-crystal neutron diffraction. The magnetic moments align along the b axis, with minimal canting towards the c axis, at odds with the previous interpretation of bulk magnetization measurements. The magnetic moments on the two distinct Co sites are [0, -0.68(3), 0] μB and [0, 1.25(4), 0.07(1)] μB. We attribute the previously reported "noncollinear"behavior to the considerable temperature dependence of itinerant AFM exchange interactions, induced by thermal contraction along the b axis. Additionally, our examination of lattice constants through pressure studies reveals compensating effects on FM and AFM interactions, resulting in negligible pressure dependence of TN.

UR - http://www.scopus.com/inward/record.url?scp=85213868447&partnerID=8YFLogxK

U2 - 10.1103/PhysRevB.110.235159

DO - 10.1103/PhysRevB.110.235159

M3 - Article

AN - SCOPUS:85213868447

SN - 2469-9950

VL - 110

JO - Physical Review B

JF - Physical Review B

IS - 23

M1 - 235159

ER -

Anomalous temperature-dependent magnetization in the nearly collinear antiferromagnet Y2Co3

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