Magnetic properties of the quasi two-dimensional centered honeycomb antiferromagnet 
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Yin, Xunqing; Li, Yunlong; Wang, Guohua; Hu, Jiajun; Xu, Chuangye; Lu, Qi; Zhong, Yunlei; Zhao, Jingkui; Zhao, Xiang; Zhang, Yuanlei; Cao, Yiming; Xu, Kun; Li, Zhe; Kamiya, Yoshitomo; Hong, Guo; Qian, Dong

doi:10.1103/physrevb.104.134432

Cited by 9 publications

(2 citation statements)

References 55 publications

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“…Ordering temperature ( T 0 ) versus the distance of NN Gd ions ( d NN ) for some of Gd-based oxides, ,,,,,− the dashed line denotes the position of d NN ∼ 3.91 Å of K 2 GdNb 5 O 15 .…”

Section: Resultsmentioning

confidence: 99%

K₂RENb₅O₁₅ (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

Zeng,

Ge,

et al. 2024

Chem. Mater.

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One-dimensional (1D) spin chain systems have received special attention to discover novel magnetic ground states and emergent phenomena, while magnetic studies on rare-earth (RE)-based 1D spin chain materials are still rare. Here, we report the synthesis, structure, and magnetic behaviors of a family of tetragonal tungsten-bronze (TTB) structure K 2 RENb 5 O 15 (RE = Ce, Pr, Nd, Sm, Gd−Ho) compounds, which consist of a 1D linear spin-chain structure built by RE 3+ ions along the c-axis and well spatially separated by nonmagnetic K/Nb−O polyhedrons with large interchain distances of ∼8.80−8.88 Å in the ab-plane. In this family of K 2 RENb 5 O 15 compounds, the nearest-neighboring interchain exchange interactions through the RE−O−K/Nb−O− RE routes are much smaller than the intrachain ones via the RE−O−RE pathways, and the low-temperature magnetic results reveal the absence of long-range magnetic order down to 1.8 K for all compounds. Among them, K 2 GdNb 5 O 15 , with spin-only magnetic moment S = 7/2, exhibits a long-range magnetic order with T N ∼ 0.31 K and strong spin fluctuations at low temperatures due to its low-dimension characteristics. Moreover, a large magnetocaloric effect under low field change (ΔB) of ΔB = 0−2 T is realized at temperatures below 1 K for K 2 GdNb 5 O 15 , making it an ideal candidate for adiabatic magnetic refrigeration applications at sub-Kelvin temperatures. The K 2 RENb 5 O 15 become a rare family of insulating RE-based magnets for exploring the novel 1D spin chain physics beyond the 3d TM-based counterparts in terms of their combination of low dimension, strong spin−orbital coupling, and rich diversity of RE ions.

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“…Ordering temperature ( T 0 ) versus the distance of NN Gd ions ( d NN ) for some of Gd-based oxides, ,,,,,− the dashed line denotes the position of d NN ∼ 3.91 Å of K 2 GdNb 5 O 15 .…”

Section: Resultsmentioning

confidence: 99%

K₂RENb₅O₁₅ (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

Zeng,

Ge,

et al. 2024

Chem. Mater.

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“…The ABO 3 -type compounds have invoked considerable interest due to rich physical properties, such as ferroelectricity, multiferroicity, piezoelectricity, ferromagnetism, spin liquid state, etc. − Generally, the ABO 3 compounds always have an ideal cubic perovskite structure, but many complex structural families have been derived by the lattice distortion, such as the low symmetric hexagonal ABO 3 perovskites. − Among them, hexagonal R MnO 3 has been widely studied due to its intriguing magnetoelectric effect. − Meanwhile, hexagonal R InO 3 , isostructural with R MnO 3 , has sparked intense interest owing to the possibility of the coexistence of spin liquid state and improper geometric ferroelectricity. − The improper geometric ferroelectricity is very different from the conventional ferroelectric mechanism because it can couple and reverse a weak ferromagnetic moment to achieve magnetic ferroelectrics for “spintronics” applications. ,− A first-principles study has predicted that the geometric ferroelectricity of hexagonal R InO 3 is much larger than that of hexagonal R MnO 3 . However, the theoretical calculation of GdInO 3 ferroelectricity disputed with the polycrystalline experimental results; , recently, we confirmed the geometric ferroelectricity by the experiment of bulk GdInO 3 single crystals .…”

Section: Introductionmentioning

confidence: 99%

Novel Geometric Ferroelectric EuInO₃ Single Crystals with Topological Vortex Domains

Zhou

et al. 2023

Crystal Growth & Design

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RInO 3 (R: rare-earth element) has drawn unprecedented research attention due to its geometric ferroelectricity and spin liquid state. However, the structure−property relationship needs further investigation based on well-developed single crystals. A EuInO 3 crystal was obtained for the first time by the laser floating zone method. The presence of ferroelectricity was revealed by polarization−electric field hysteresis loops of the bulk EuInO 3 single crystal. Moreover, interesting topological vortex domains were revealed by vertical piezoresponse force microscopy. The lattice dynamics of EuInO 3 was probed by correlating various Raman modes with the structural distortion of the unit cell. The improper ferroelectricity and topological ferroelectric vortices of the EuInO 3 crystal provide great potential for vortex memory devices.

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Large cryogenic magnetocaloric effect in Na5Gd4F(SiO4)4

Chen,

Yu,

Zhang

et al. 2024

Cryogenics

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Magnetic properties of the quasi two-dimensional centered honeycomb antiferromagnet GdInO3

Cited by 9 publications

References 55 publications

K₂RENb₅O₁₅ (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

K₂RENb₅O₁₅ (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

Novel Geometric Ferroelectric EuInO₃ Single Crystals with Topological Vortex Domains

Large cryogenic magnetocaloric effect in Na5Gd4F(SiO4)4

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Magnetic properties of the quasi two-dimensional centered honeycomb antiferromagnet GdInO3

Cited by 9 publications

References 55 publications

K2RENb5O15 (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

K2RENb5O15 (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

Novel Geometric Ferroelectric EuInO3 Single Crystals with Topological Vortex Domains

Large cryogenic magnetocaloric effect in Na5Gd4F(SiO4)4

Contact Info

Product

Resources

About

K₂RENb₅O₁₅ (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

K₂RENb₅O₁₅ (RE = Ce, Pr, Nd, Sm, Gd–Ho): A Family of Quasi-One-Dimensional Spin-Chain Compounds with Large Interchain Distance

Novel Geometric Ferroelectric EuInO₃ Single Crystals with Topological Vortex Domains