Unconventional critical behavior in the quasi-one-dimensional S=1 chain NiTe2 O5

Jun Han Lee; Marie Kratochvílová; Huibo Cao; Zahra Yamani; J. S. Kim; Je Geun Park; G. R. Stewart; Yoon Seok Oh

doi:10.1103/PhysRevB.100.144441

Unconventional critical behavior in the quasi-one-dimensional S=1 chain NiTe2 O5

Jun Han Lee, Marie Kratochvílová, Huibo Cao, Zahra Yamani, J. S. Kim, Je Geun Park, G. R. Stewart, Yoon Seok Oh

Single Crystal Diffraction

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8 Scopus citations

Abstract

Here we report a quasi-one-dimensional S=1 chain compound NiTe2O5. From the comprehensive study of the structure and magnetic properties on high-quality single-crystalline NiTe2O5, it is revealed that NiTe2O5 undergoes a transition into an intriguing long-range antiferromagnetic order at TN=30.5K, in which longitudinal magnetic moments along the chain direction are ferromagnetically ordered, while their transverse components have an alternating ferromagnetic-antiferromagnetic coupling. Even though the temperature dependence of magnetic susceptibility represents an archetypal anisotropic antiferromagnetic order, we found that critical behavior of unconventional nature with α′∼0.25 and β∼0.18 is accompanied by the temperature evolution of the antiferromagnetic order parameter.

Original language	English
Article number	144441
Journal	Physical Review B
Volume	100
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevB.100.144441
State	Published - Oct 28 2019

Funding

Work at Ulsan National Institute of Science and Technology was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (Grants No. NRF-2015R1C1A1A01055964 and NRF-2017R1A4A1015323). Work at University of Florida was carried out under the auspices of the U.S. Department of Energy (DOE), Basic Energy Sciences, Contract No. DE-FG02-ER45268. This work at the IBS CCES and SNU was supported by the Institute for Basic Science (IBS) in Korea (Grant No. IBS-R009-G1). The work at ORNL's HFIR was sponsored by the Scientific User Facilities Division, Office of Science, Basic Energy Sciences (BES), U.S. DOE.

Funders	Funder number
Scientific User Facilities Division
U.S. DOE
U.S. Department of Energy
Office of Science	BES
Basic Energy Sciences
Oak Ridge National Laboratory
University of Florida
Ulsan National Institute of Science and Technology
Ministry of Science, ICT and Future Planning
Korea Basic Science Institute
National Research Foundation of Korea
Institute for Basic Science
Shenyang Normal University

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title = "Unconventional critical behavior in the quasi-one-dimensional S=1 chain NiTe2 O5",

abstract = "Here we report a quasi-one-dimensional S=1 chain compound NiTe2O5. From the comprehensive study of the structure and magnetic properties on high-quality single-crystalline NiTe2O5, it is revealed that NiTe2O5 undergoes a transition into an intriguing long-range antiferromagnetic order at TN=30.5K, in which longitudinal magnetic moments along the chain direction are ferromagnetically ordered, while their transverse components have an alternating ferromagnetic-antiferromagnetic coupling. Even though the temperature dependence of magnetic susceptibility represents an archetypal anisotropic antiferromagnetic order, we found that critical behavior of unconventional nature with α′∼0.25 and β∼0.18 is accompanied by the temperature evolution of the antiferromagnetic order parameter.",

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AU - Lee, Jun Han

AU - Kratochvílová, Marie

AU - Cao, Huibo

AU - Yamani, Zahra

AU - Kim, J. S.

AU - Park, Je Geun

AU - Stewart, G. R.

AU - Oh, Yoon Seok

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N2 - Here we report a quasi-one-dimensional S=1 chain compound NiTe2O5. From the comprehensive study of the structure and magnetic properties on high-quality single-crystalline NiTe2O5, it is revealed that NiTe2O5 undergoes a transition into an intriguing long-range antiferromagnetic order at TN=30.5K, in which longitudinal magnetic moments along the chain direction are ferromagnetically ordered, while their transverse components have an alternating ferromagnetic-antiferromagnetic coupling. Even though the temperature dependence of magnetic susceptibility represents an archetypal anisotropic antiferromagnetic order, we found that critical behavior of unconventional nature with α′∼0.25 and β∼0.18 is accompanied by the temperature evolution of the antiferromagnetic order parameter.

AB - Here we report a quasi-one-dimensional S=1 chain compound NiTe2O5. From the comprehensive study of the structure and magnetic properties on high-quality single-crystalline NiTe2O5, it is revealed that NiTe2O5 undergoes a transition into an intriguing long-range antiferromagnetic order at TN=30.5K, in which longitudinal magnetic moments along the chain direction are ferromagnetically ordered, while their transverse components have an alternating ferromagnetic-antiferromagnetic coupling. Even though the temperature dependence of magnetic susceptibility represents an archetypal anisotropic antiferromagnetic order, we found that critical behavior of unconventional nature with α′∼0.25 and β∼0.18 is accompanied by the temperature evolution of the antiferromagnetic order parameter.

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Unconventional critical behavior in the quasi-one-dimensional S=1 chain NiTe2 O5

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