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Zhou C, Li R. Gd 3 TeBO 9 : A Rare-Earth Borate with Significant Magnetocaloric Effect. Chemistry 2024; 30:e202303048. [PMID: 37932887 DOI: 10.1002/chem.202303048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 11/05/2023] [Accepted: 11/06/2023] [Indexed: 11/08/2023]
Abstract
Magnetic refrigeration technology based on Gd-based paramagnets is expected to be applied to refrigeration in extremely low temperatures, thereby reducing the consumption of liquid helium. Here, we obtained a compound, Gd3 TeBO9 with high Gd3+ concentration through element substitution. The Gd3+ concentration in this compound is as high as 2.4×1024 ions/kg, which is 33 % higher than the commercial Gd3 Ga5 O12 (GGG), and further magnetic tests show that Gd3 TeBO9 has a large magnetic entropy change (57.44 J/(kg K) and 408 mJ/(cm3 K) at 2.6 K and 7 T), which is 1.5 times that of GGG, implying the possibility of its further development as an potential magnetocaloric material.
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Affiliation(s)
- Changqing Zhou
- Beijing Center for Crystal Research and Development Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
| | - Rukang Li
- Beijing Center for Crystal Research and Development Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry Chinese Academy of Sciences, Beijing, 100190, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing, 100049, China
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2
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Lutter JC, Boron TT, Chadwick KE, Davis AH, Kleinhaus S, Kampf JW, Zaleski CM, Pecoraro VL. Identification of slow magnetic relaxation and magnetocoolant capabilities of heterobimetallic lanthanide-manganese metallacrown-like compounds. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115190] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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3
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Liu W, Liang F, Chen Y, Song H, Feng J, Shen J, Lin Z, Tu H, Zhang G. Large Magnetocaloric Effect in Li 3K 9Gd 3(BO 3) 7 Crystal Featuring Sandwich-Like Three-Dimensional Framework. Inorg Chem 2021; 60:6796-6803. [PMID: 33843230 DOI: 10.1021/acs.inorgchem.1c00633] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A new Gd-based borate crystal, Li3K9Gd3(BO3)7, has been successfully obtained via the high-temperature solution method using Li2O-K2O-B2O3 self-flux. It crystallizes in monoclinic space group P2/n (no. 10) with lattice parameters a = 11.3454(6) Å, b = 9.9881(4) Å, c = 11.4467(7) Å, α = γ = 90 o, β = 114.782(7) o, and Z = 2. Li3K9Gd3(BO3)7 exhibits an intriguing sandwich-like three-dimensional (3D) framework constructed from [Gd-B-O]∞ layers, KOn (n = 6 and 8) polyhedra, and LiO4 tetrahedra, in which [Gd-B-O]∞ layers are built from two types of GdO8 polyhedra and triangular BO3 units. Magnetic measurements showed that Li3K9Gd3(BO3)7 exhibits a large magnetocaloric effect with -ΔSm = 39.3 J kg-1 K-1 at 2.0 K for ΔH = 7 T, which is slightly higher than that of the commercial gadolinium gallium garnet under the same conditions. The powder X-ray diffraction, infrared spectrum, and UV-vis-NIR diffuse reflectance spectrum were also performed to characterize Li3K9Gd3(BO3)7. The electronic band structures, partial density of states, and refractive indices of Li3K9Gd3(BO3)7 were investigated via the first-principle calculations.
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Affiliation(s)
- Wang Liu
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Fei Liang
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China
| | - Yuwei Chen
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Huimin Song
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jingcheng Feng
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Jun Shen
- Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Zheshuai Lin
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | - Heng Tu
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
| | - Guochun Zhang
- Key Laboratory of Functional Crystals and Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, People's Republic of China.,State Key Laboratory of Crystal Materials and Institute of Crystal Materials, Shandong University, Jinan 250100, People's Republic of China.,Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China
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4
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Exploring the Impact of Structure-Sensitivity Factors on Thermographic Properties of Dy 3+-Doped Oxide Crystals. MATERIALS 2021; 14:ma14092370. [PMID: 34063212 PMCID: PMC8125541 DOI: 10.3390/ma14092370] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/15/2021] [Revised: 04/20/2021] [Accepted: 04/30/2021] [Indexed: 11/16/2022]
Abstract
Optical absorption spectra and luminescence spectra were recorded as a function of temperature between 295 K and 800 K for single crystal samples of Gd2SiO5:Dy3+, Lu2SiO5:Dy3+, LiNbO3:Dy3+, and Gd3Ga3Al2O12:Dy3+ fabricated by the Czochralski method and of YAl3(BO3)4:Dy3+ fabricated by the top-seeded high temperature solution method. A thermally induced change of fluorescence intensity ratio (FIR) between the 4I15/2→ 6H15/2 and 4F9/2 → 6H15/2 emission bands of Dy3+ was inferred from experimental data. It was found that relative thermal sensitivities SR at 350 K are higher for YAl3(BO3)4:Dy3+ and Lu2SiO5:Dy3+than those for the remaining systems studied. Based on detailed examination of the structural peculiarities of the crystals it was ascertained that the observed difference between thermosensitive features cannot be attributed directly to the dissimilarity of structural factors consisting of the geometry and symmetry of Dy3+ sites, the number of non-equivalent Dy3+ sites, and the host anisotropy. Instead, it was found that a meaningful correlation between relative thermal sensitivity SR and rates of radiative transitions of Dy3+ inferred from the Judd–Ofelt treatment exists. It was concluded that generalization based on the Judd–Ofelt parameters and luminescence branching ratio analysis may be useful during a preliminary assessment of thermosensitive properties of new phosphor materials.
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5
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Ashtar M, Bai Y, Xu L, Wan Z, Wei Z, Liu Y, Marwat MA, Tian Z. Structure and Magnetic Properties of Melilite-Type Compounds RE 2Be 2GeO 7 (RE = Pr, Nd, Gd-Yb) with Rare-Earth Ions on Shastry-Sutherland Lattice. Inorg Chem 2021; 60:3626-3634. [PMID: 33635649 DOI: 10.1021/acs.inorgchem.0c03131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Rare-earth (RE)-based frustrated magnets, such as typical systems of combining strong spin-orbit coupling (SOC), geometric frustration, and anisotropic exchange interaction, can give rise to diverse exotic magnetic ground states such as quantum spin liquid. The discovery of new RE-based frustrated materials is crucial for exploring the exotic magnetic phases. Herein, we report the synthesis, structure, and magnetic properties of a family of melilite-type RE2Be2GeO7 (RE = Pr, Nd, and Gd-Yb) compounds crystallized in a tetragonal P4̅21m structure, where magnetic RE3+ ions lay out on the Shastry-Sutherland lattice (SSL) within the ab plane and are well separated by nonmagnetic [GeBe2O7]6- polyhedrons along the c-axis. Temperature (T)-dependent susceptibilities χ(T) and isothermal magnetization M(H) measurements reveal that most RE2Be2GeO7 compounds except RE = Tb show no magnetic ordering down to 2 K despite the dominant antiferromagnetic (AFM) interactions, where Tb2Be2GeO7 undergoes AFM transition with Néel temperature TN ∼ 2.5 K and field-induced spin flop behaviors (T < TN). In addition, the calculated magnetic entropy change ΔSm from the isothermal M(H) curves reveals viable magnetocaloric effect for RE2Be2GeO7 (RE = Gd and Dy) in liquid helium temperature regimes; Gd2Be2GeO7 shows the maximum ΔSm up to 54.8 J K-1 kg-1 at ΔH = 7 T and Dy2Be2GeO7 has the largest value ΔSm = 16.1 J K-1 kg-1 at ΔH = 2 T in this family. More excitingly, the rich diversity of RE ions in this family enables an archetype for exploring exotic quantum magnetic phenomena with large variability of spin located on the SSL lattice.
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Affiliation(s)
- Malik Ashtar
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Yuming Bai
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Longmeng Xu
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zongtang Wan
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zijun Wei
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Yong Liu
- School of Physics, Wuhan University, Wuhan 430072, PR China
| | - Mohsin Ali Marwat
- College of Materials Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, PR China
| | - Zhaoming Tian
- Wuhan National High Magnetic Field Center and School of Physics, Huazhong University of Science and Technology, Wuhan 430074, PR China
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6
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Kelly ND, Dutton SE. Magnetic Properties of Quasi-One-Dimensional Lanthanide Calcium Oxyborates Ca 4LnO(BO 3) 3. Inorg Chem 2020; 59:9188-9195. [PMID: 32525304 PMCID: PMC7467667 DOI: 10.1021/acs.inorgchem.0c01098] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
![]()
This study examines
the lanthanide calcium oxyborates Ca4LnO(BO3)3 (Ln = La, Pr, Nd,
Sm, Eu, Gd, Tb, Dy, Ho, Y, Er, Yb). The reported monoclinic structure
(space group Cm) was confirmed using powder X-ray
diffraction. The magnetic Ln3+ ions are
situated in well-separated chains parallel to the c axis in a quasi-one-dimensional array. Here we report the first
bulk magnetic characterization of Ca4LnO(BO3)3 using magnetic susceptibility χ(T) and isothermal magnetization M(H) measurements at T ≥ 2 K. With
the sole exception of Ca4TbO(BO3)3, which displays a transition at T = 3.6 K, no magnetic
transitions occur above 2 K, and Curie–Weiss analysis indicates
antiferromagnetic nearest-neighbor interactions for all samples. Calculation
of the magnetic entropy change ΔSm indicates that Ca4GdO(BO3)3 and Ca4HoO(BO3)3 are viable
magnetocaloric materials at liquid helium temperatures in the high-field
and low-field regimes, respectively. The monoclinic lanthanide calcium oxyborates Ca4LnO(BO3)3 contain well-separated
chains of magnetic Ln3+ ions. Bulk magnetic
characterization suggests quasi-one-dimensional behavior with no magnetic
ordering above 2 K except in Ca4TbO(BO3)3 (Ttr = 3.6 K).
Ca4GdO(BO3)3 and Ca4HoO(BO3)3 are viable magnetocaloric materials at liquid
helium temperatures in the high-field and low-field regimes, respectively.
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Affiliation(s)
- Nicola D Kelly
- Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, U.K
| | - Siân E Dutton
- Cavendish Laboratory, University of Cambridge, J J Thomson Avenue, Cambridge CB3 0HE, U.K
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7
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Danker F, Anderer C, Poschmann M, Terraschke H, Näther C, van Leusen J, Bensch W, Kögerler P. [Mn(terpy)Sb
2
S
4
]
n
, a 1D Network of MnSb
4
S
5
Rings Exhibiting a Pronounced Magnetocaloric Effect and Luminescence. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000225] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Felix Danker
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Carolin Anderer
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Michael Poschmann
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Huayna Terraschke
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Christian Näther
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Jan van Leusen
- Institut für Anorganische Chemie RWTH Aachen University 52074 Aachen Germany
| | - Wolfgang Bensch
- Institute of Inorganic Chemistry Christian‐Albrechts‐University of Kiel Max‐Eyth‐Straße 2 24118 Kiel Germany
| | - Paul Kögerler
- Institut für Anorganische Chemie RWTH Aachen University 52074 Aachen Germany
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8
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Xia M, Shen S, Lu J, Sun Y, Li R. K3
Li3
Gd7
(BO3
)9
: A New Gadolinium-Rich Orthoborate for Cryogenic Magnetic Cooling. Chemistry 2018; 24:3147-3150. [DOI: 10.1002/chem.201705669] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Mingjun Xia
- Beijing Center for Crystal Research and Development; Key Laboratory of Functional Crystals and Laser Technology; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 China
| | - Shipeng Shen
- Department Beijing National Laboratory for Condensed Matter Physics; Institute of Physics; Chinese Academy of Sciences; Beijing 100190 China
| | - Jun Lu
- Department Beijing National Laboratory for Condensed Matter Physics; Institute of Physics; Chinese Academy of Sciences; Beijing 100190 China
| | - Young Sun
- Department Beijing National Laboratory for Condensed Matter Physics; Institute of Physics; Chinese Academy of Sciences; Beijing 100190 China
| | - Rukang Li
- Beijing Center for Crystal Research and Development; Key Laboratory of Functional Crystals and Laser Technology; Technical Institute of Physics and Chemistry; Chinese Academy of Sciences; Beijing 100190 China
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9
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Mukherjee P, Sackville Hamilton AC, Glass HFJ, Dutton SE. Sensitivity of magnetic properties to chemical pressure in lanthanide garnets Ln 3 A 2 X 3O 12, Ln = Gd, Tb, Dy, Ho, A = Ga, Sc, In, Te, X = Ga, Al, Li. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2017; 29:405808. [PMID: 28726675 DOI: 10.1088/1361-648x/aa810e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A systematic study of the structural and magnetic properties of three-dimensionally frustrated lanthanide garnets Ln 3 A 2 X 3O12, Ln = Gd, Tb, Dy, Ho, A = Ga, Sc, In, Te, X = Ga, Al, Li is presented. Garnets with Ln = Gd show magnetic behaviour consistent with isotropic Gd3+ spins; no magnetic ordering is observed for T ⩾ 0.4 K. Magnetic ordering features are seen for garnets with Ln = Tb, Dy, Ho in the temperature range 0.4 < T < 2.5 K, however the nature of the magnetic ordering varies for the different Ln as well as for different combinations of A and X. The magnetic behaviour can be explained by tuning of the magnetic interactions and changes in the single-ion anisotropy. The change in magnetic entropy is evaluated from isothermal magnetisation measurements to characterise the magnetocaloric effect in these materials. Among the Gd garnets, the maximum change in magnetic entropy per mole (15.45 J K-1 [Formula: see text]) is observed for Gd3Sc2Ga3O12 at 2 K, in a field of 9 T. The performance of Dy3Ga5O12 as a magnetocaloric material surpasses the other garnets with Ln = Tb, Dy, Ho.
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Affiliation(s)
- P Mukherjee
- Cavendish Laboratory, University of Cambridge, JJ Thomson Avenue, Cambridge CB3 0HE, United Kingdom
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