Magnetic hyperfine interactions in a sawtooth chain iron oxoselenite Fe2O(SeO3)2: Experimental and theoretical Investigation

Sobolev, A. V.; Aslandukovа, Alena; Kozlyakova, Ekaterina S.; Кузнецова, Е. С.; Akhrorov, Ahmad Yu.; Berdonosov, P. S.; Glazkova, Iana S.; Волкова, О. С.; Vasiliev, A. N.; Presniakov, Igor A.

doi:10.1016/j.jallcom.2019.153549

Cited by 5 publications

(15 citation statements)

References 23 publications

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“…6 . The magnitude of the magnetic moment is consistent with those found in the Mössbauer experiments 25 .…”

Section: Resultssupporting

confidence: 89%

“…The short range order should develop above the transition temperature due to the low-dimensionality in the magnetism. The antiferromagnetic order occurs at 105 K, followed by a sharp increase in the magnetic susceptibility 24 , 25 and the increase in the distribution of the hyperfine fields observed by the Fe Mössbauer spectroscopy 25 . In addition, the excitations associated with the magnetic order have been detected by the Raman scattering study 24 .…”

Section: Introductionmentioning

confidence: 97%

“…This compound crystallizes in the space group Pccn ( Z = 8). The Curie-Weiss fit to the temperature dependence of the magnetic susceptibility yields Weiss temperature of −200(10) K, indicating predominant antiferromagnetic interactions 25 . As the temperature is decreased below 300 K, the magnetic susceptibility deviates from the Curie-Weiss rule and shows a shoulder around 120 K 24 , 25 .…”

Section: Introductionmentioning

confidence: 98%

“…The Curie-Weiss fit to the temperature dependence of the magnetic susceptibility yields Weiss temperature of −200(10) K, indicating predominant antiferromagnetic interactions 25 . As the temperature is decreased below 300 K, the magnetic susceptibility deviates from the Curie-Weiss rule and shows a shoulder around 120 K 24 , 25 . The short range order should develop above the transition temperature due to the low-dimensionality in the magnetism.…”

Section: Introductionmentioning

confidence: 98%

“…Several compounds were reported to have a magnetic sawtooth chain such as 15 , 16 , ( )(OH) 3 O 17 , Cl(OH) 18 , {[Cu(bpy)( O)][Cu(bpy)(mal)( O)]}( ) (bpy = 2,2’-bipyridine and mal = malonate dianion) 19 , 20 , (Ln = Er, Tm, Yb) 21 and O( ) 22 . In this article, we discuss magnetic properties of a sawtooth chain magnet 23 – 25 . This compound crystallizes in the space group Pccn ( Z = 8).…”

Section: Introductionmentioning

confidence: 99%

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Magnetic structure study of the sawtooth chain antiferromagnet $$\hbox {Fe}_2\hbox {Se}_2\hbox {O}_7$$

Nawa

Avdeev

Berdonosov

et al. 2021

Sci Rep

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A magnetic structure of the sawtooth-chain antiferromagnet $$\hbox {Fe}_2\hbox {Se}_2\hbox {O}_7$$ Fe 2 Se 2 O 7 was investigated by magnetization measurements, single crystalline and powder neutron diffraction experiments, and a further analysis on the Mössbauer spectra. These experiments revealed a nearly collinear antiferromagnetic structure with magnetic moments aligned along the b-axis, indicating dominant antiferromagnetic exchanges between Fe(1)–Fe(2) and Fe(2)–Fe(3) sites. The magnon dispersion relation derived from the linear spin wave approximation suggests the possible flat band nature of magnons.

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“…6 . The magnitude of the magnetic moment is consistent with those found in the Mössbauer experiments 25 .…”

Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Magnetic structure study of the sawtooth chain antiferromagnet $$\hbox {Fe}_2\hbox {Se}_2\hbox {O}_7$$

Nawa

Avdeev

Berdonosov

et al. 2021

Sci Rep

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Synthesis, structure and magnetic properties of two new iron(Ш) selenites

Zhang

Cui

et al. 2023

Journal of Solid State Chemistry

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Polar Layered Magnet Ba₂Cu₃(SeO₃)₄F₂ Composed of Bitriangular Chains: Observation of 1/3-Magnetization Plateau

Yalikun,

Wang,

Shi

et al. 2024

Chem. Mater.

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We prepared a new polar layered quantum magnet Ba2Cu3(SeO3)4F2, by a combined use of F– and pyramidal SeO3 2– anions, determined its crystal structure by X-ray diffraction, and characterized its magnetic properties by magnetization, electron spin resonance (ESR) and specific heat measurements, and by density functional theory calculations. The title compound has first experimentally reported bitriangular chains of Cu2+ ions aligned along the b direction to form layers parallel to the ab plane, and these layers are separated by Ba2+ ions. The magnetic susceptibility data reveal that, despite strong predominant antiferromagnetic intrachain interactions indicated by the large negative Weiss temperature θ of −143.9 K within bitriangular chains, no long-range order occurs down to 2 K. The latter, further confirmed by the specific heat measurements, is attributed to the extremely weak interlayer interaction. The spins in each bitriangular chain become ferrimagnetically ordered to exhibit a 1/3-magnetization plateau, which persists at least up to 30 T. This reveals that each bitriangular chain acts as an S = 1/2 entity at low temperatures, as observed from the decrease of the effective magnetic moment P eff from 3.67 μB in the high temperature range to 1.89 μB in the low temperature range, equivalently, from three free Cu2+ ions to only one effective Cu2+ ion per formula unit. In each layer of Ba2Cu3(SeO3)4F2, the interaction between adjacent ferrimagnetic chains is ferromagnetic rather than antiferromagnetic, contrary to the observations in other reported cases.

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Magnetic hyperfine interactions in a sawtooth chain iron oxoselenite Fe2O(SeO3)2: Experimental and theoretical Investigation

Cited by 5 publications

References 23 publications

Magnetic structure study of the sawtooth chain antiferromagnet $$\hbox {Fe}_2\hbox {Se}_2\hbox {O}_7$$

Magnetic structure study of the sawtooth chain antiferromagnet $$\hbox {Fe}_2\hbox {Se}_2\hbox {O}_7$$

Synthesis, structure and magnetic properties of two new iron(Ш) selenites

Polar Layered Magnet Ba₂Cu₃(SeO₃)₄F₂ Composed of Bitriangular Chains: Observation of 1/3-Magnetization Plateau

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Magnetic hyperfine interactions in a sawtooth chain iron oxoselenite Fe2O(SeO3)2: Experimental and theoretical Investigation

Cited by 5 publications

References 23 publications

Magnetic structure study of the sawtooth chain antiferromagnet $$\hbox {Fe}_2\hbox {Se}_2\hbox {O}_7$$

Magnetic structure study of the sawtooth chain antiferromagnet $$\hbox {Fe}_2\hbox {Se}_2\hbox {O}_7$$

Synthesis, structure and magnetic properties of two new iron(Ш) selenites

Polar Layered Magnet Ba2Cu3(SeO3)4F2 Composed of Bitriangular Chains: Observation of 1/3-Magnetization Plateau

Contact Info

Product

Resources

About

Polar Layered Magnet Ba₂Cu₃(SeO₃)₄F₂ Composed of Bitriangular Chains: Observation of 1/3-Magnetization Plateau