Article
Chemistry, Physical
A. Hashhash, A. Hassen, W. S. Baleidy, H. S. Refai
Summary: Rare-earth ions RE3+ doped Sr/Ba-hexaferrite nanoparticles were prepared using the sol-gel auto-combustion method, and the effects of the dopant on structural and morphological properties were investigated. The addition of RE3+ ions resulted in the sedimentation of ions on the grain boundaries, inhibiting grain growth and leading to nanoparticles with sizes ranging from 35.22-51.9 nm.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Hangboce Yin, Jun-Qiang Wang, Yongjiang Huang, Hongxian Shen, Shu Guo, Hongbo Fan, Juntao Huo, Jianfei Sun
Summary: The new high-entropy metallic-glasses (HE-MGs) are designed using Dy and Ho instead of Gd in the Gd36Tb20Co20Al24 alloy based on the binary eutectic clusters method. The non-equiatomic RE36Tb20Co20Al24 (RE = Gd, Dy, or Ho) alloys show improved glass-forming ability compared to the equiatomic Gd25Tb25Co25Al25 alloy. The Ho36Tb20Co20Al24 alloy exhibits an extreme value of magnetic entropy change, indicating its potential for magnetocaloric applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Physical
Adam J. Lovett, Matthew P. Wells, Zihao He, Juanjuan Lu, Haiyan Wang, Judith L. MacManus-Driscoll
Summary: This study demonstrates the successful stabilization of delta-Bi2O3 phase in vertically aligned nanocomposite (VAN) films. VAN films exhibit high ionic conductivity, opening up new possibilities for their application in functional micro solid oxide fuel cell (SOFC) devices.
JOURNAL OF MATERIALS CHEMISTRY A
(2022)
Article
Materials Science, Ceramics
Yikun Zhang, Ningzhou He, Zhenqian Zhang, Xin Wang
Summary: A systematic investigation on the crystal structure, magnetic properties and magnetocaloric effect of three rare earth molybdate oxides were reported. The results showed that these oxides have phase-pure and polycrystalline nature. The magnetic measurements determined the magnetic phase transition and magnetocaloric properties. The oxides exhibited reasonable magnetocaloric parameters, making them potential candidates for cryogenic magnetic refrigeration.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Physical
Takayuki Tajiri, Hiroyuki Deguchi, Masaki Mito, Atsushi Kohno
Summary: The synthesized lanthanoid manganese oxide nanoparticles displayed a strong correlation between crystal structure and magnetic properties. The effects of particle size on these properties varied due to different atomic radii of the lanthanoid ions. As particle size decreased, changes in magnetic properties were observed, influenced by the strain of MnO6 octahedra and the magnetic ordering state.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Materials Science, Ceramics
Juliusz Dabrowa, Jakub Cieslak, Marek Zajusz, Maciej Mozdzierz, Katarzyna Berent, Andrzej Mikula, Anna Stepien, Konrad Swierczek
Summary: High-entropy, iron-containing garnet-structured oxides with excellent phase stability and distorted lattice character have been synthesized for the first time, showing lower electrical conductivity compared to YIG.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2021)
Article
Engineering, Electrical & Electronic
Saloni, Atul Khanna
Summary: Solid-state sintering was used to synthesize highly luminescent materials of 1 mol% Re2O3-doped YVO4 (Re = Sm, Dy, Er, and Eu). Characterization techniques, such as XRD, FESEM, Raman, and PL spectroscopy, were employed to examine the structural and optical properties of the materials. YVO4 was found to be a promising host material for visible-light phosphors excited by UV radiation due to its intense light emission in different colors.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Zhipan Ma, Peng Xu, Xing Wang, Zhenqian Zhang, Lingwei Li
Summary: In this study, three rare earth-based quaternary silicon carbides were synthesized and characterized for their crystal structure, magnetic properties, magnetic phase transition, and magnetocaloric performances. Among them, GdCr2Si2C showed promising magnetocaloric performances for cryogenic magnetic refrigeration applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Materials Science, Multidisciplinary
Peng Xu, Liang Hu, Zhenqian Zhang, Haifeng Wang, Lingwei Li
Summary: Rare earth-based magnetic materials play important roles in modern society. In this study, high quality RE2BaZnO5 compounds were fabricated and their crystal structure, electronic structure, magnetic properties, and magnetocaloric effects were investigated. The compounds showed different magnetic ordering depending on the rare earth element and exhibited significant magnetocaloric effects, especially Dy2BaZnO5 and Ho2BaZnO5.
Article
Nanoscience & Nanotechnology
T. K. Lin, H. W. Chang, C. Y. Hung, C. R. Wang, D. H. Wei, C. S. Tu, P. Y. Chen
Summary: We investigated the structure, ferroelectric, magnetic, and leakage characteristics of Bi0.95H0.05FeO3 (BHFO) polycrystalline films with H = Gd, Tb, Dy, Ho, and Er. Bi0.95H0.05FeO3 films were confirmed to mainly consist of the perovskite phase, and the phase structure belongs to the pseudo-cubic phase. The desired ferroelectric and ferromagnetic properties were obtained for Bi0.95H0.05FeO3 films, with remanent polarization (2P(r)) of 57-81 mu C/cm(2) and saturation magnetization (M-s) of 11.6-21.3 emu/cm(3). Low leakage current characteristics and leakage mechanisms in Bi0.95H0.05FeO3 films were also discussed. In terms of magnetic properties, H can significantly improve the magnetic properties of BFO by A-site substitutions due to the suppressed spiral structure and the contribution of high magnetic moment of H ion. The results suggest that BHFO films, particularly with H = Tb and Dy, are good multiferroic materials.
Article
Engineering, Electrical & Electronic
Filip Antoncik, Michal Lojka, Tomas Hlasek, Jakub Skocdopole, David Sedmidubsky, Ondrej Jankovsky
Summary: This study investigates the effects of various RE2O3-Ba3Cu5O8-BaO2 (RE = Sm, Gd, Dy, Y, Yb) liquid sources on the properties and microstructure of single-domain EuBCO/Ag bulks. It is found that the addition of the rare earth liquid phase significantly improves the trapped field homogeneity, with Dy2O3 yielding the highest trapped field among the studied rare earth elements. This research is significant for understanding the impact of different rare earth elements and techniques on high-performance superconducting ceramics.
IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY
(2021)
Article
Materials Science, Ceramics
Bingbing Wu, Yikun Zhang, Dan Guo, Jiang Wang, Zhongming Ren
Summary: The RE2FeAlO6 oxides have large magneto-caloric effects, with Gd2FeAlO6 showing promising performance for cryogenic magnetic refrigeration.
CERAMICS INTERNATIONAL
(2021)
Article
Crystallography
Zuzanna Ryzynska, Madalynn Marshall, Weiwei Xie, Tomasz Klimczuk, Michal J. Winiarski
Summary: Single crystals of RE3Ni5Al19 series (RE = Y, Nd, Sm, Gd, Tb, Dy, Ho, and Er) were grown using the Al self-flux method. The crystal structure was examined using both single crystal and powder X-ray diffraction. Physical properties of RE3Ni5Al19 (RE = Y, Nd, Gd, Tb, Dy, Ho, and Er) were studied for the first time through magnetic susceptibility, electrical resistivity, and heat capacity measurements, revealing complex magnetic behaviors.
CRYSTAL RESEARCH AND TECHNOLOGY
(2023)
Article
Crystallography
Veronica Paterlini, Asmaa El Khouri, Marco Bettinelli, Daniele Maria Trucchi, Francesco Capitelli
Summary: Rare-earth-based Ca9RE(PO4)(7) (RE = Nd, Gd, Dy) materials were synthesized by solid-state reaction at T = 1200 degrees C. The obtained tricalcium phosphate (TCP) materials are efficient light emitters due to the presence of RE3+ ions, and can serve as optical probes to study their local environments. These materials exhibit interesting luminescent properties in visible (Dy), UV (Gd), and NIR (Nd) regions, with weak concentration quenching even at high concentrations of the emitting ion.
Article
Chemistry, Inorganic & Nuclear
Suhwan Kim, Raeesh Muhammad, Kwanghyo Son, Hyunchul Oh
Summary: Heterogenized metal-organic frameworks (MOFs) obtained from the reaction of Gd3+ and Dy3+ ions exhibit high magnetic entropy change and temperature for magnetic refrigeration, providing the possibility of extending the working temperature of magnetic cooling materials.
INORGANIC CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Zong-Ren Yang, Wei-Hao Chen, Chia-Jyi Liu
JOURNAL OF ELECTRONIC MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Wei-Hao Chen, Zong-Ren Yang, Fei-Hung Lin, Chia-Jyi Liu
JOURNAL OF MATERIALS SCIENCE
(2017)
Article
Nanoscience & Nanotechnology
Ankam Bhaskar, Rung-Ting Lai, Kuo-Chuan Chang, Chia-Jyi Liu
SCRIPTA MATERIALIA
(2017)
Article
Chemistry, Multidisciplinary
Ankam Bhaskar, M. -S. Huang, Chia-Jyi Liu
Article
Chemistry, Physical
Fei-Hung Lin, Kuo-Chuan Chang, Zong-Ren Yang, Ahmad Gharleghi, Chia-Jyi Liu
JOURNAL OF ALLOYS AND COMPOUNDS
(2018)
Article
Multidisciplinary Sciences
En-Yu Liu, Fei-Hung Lin, Zong-Ren Yang, Chia-Jyi Liu
ROYAL SOCIETY OPEN SCIENCE
(2018)
Article
Engineering, Environmental
Chi-An Wu, Kuo-Chuan Chang, Fei-Hung Lin, Zong-Ren Yang, Ahmad Gharleghi, Ting-Zhan Wei, Chia-Jyi Liu
CHEMICAL ENGINEERING JOURNAL
(2019)
Article
Materials Science, Ceramics
Yu-Hsien Chu, Zhi-Quan Huang, Zong-Ren Yang, Fei-Hung Lin, Kuo-Chuan Chang, R. Suriakarthick, Chia-Jyi Liu
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2019)
Article
Chemistry, Physical
Immanuel Paulraj, Tzu-Fang Liang, Tzyy-Schiuan Yang, Chia-Hsin Wang, Jeng-Lung Chen, Yu-Wu Wang, Chia-Jyi Liu
ACS APPLIED ENERGY MATERIALS
(2020)
Article
Nanoscience & Nanotechnology
Immanuel Paulraj, Tzu-Fang Liang, Tzyy-Schiuan Yang, Chia-Hsin Wang, Jeng-Lung Chen, Yu Wu Wang, Chia-Jyi Liu
Summary: Organic conducting polymers show great potential as thermoelectric materials for wearable devices due to their excellent thermoelectric properties and advantages in cost, processing, toxicity, thermal conductivity, flexibility, weight, and large-scale applications.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
K. Veera Prabu, Vinothkumar Lourdhusamy, Immanuel Paulraj, M. Sridharan, Chia-Jyi Liu
Summary: The weighted mobility is a better descriptor of the optimal performance of electronic transport for thermoelectric materials. Sn doping on the electronegative Sb site lowered the electrical resistivity and enhanced the power factor of p-Mg3Sb2. The highest power factor of the Mg3Sb1.96Sn0.04 alloy is 2.55 mu W/cm-K-2 having 16 times enhancement as compared to the pristine Mg3Sb2 at 700 K.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Nanoscience & Nanotechnology
Veera Prabu Kannan, Vinothkumar Lourdhusamy, Immanuel Paulraj, Chia-Jyi Liu, Sridharan Madanagurusamy
Summary: By adding ZnSb-4%Sb composite into the Mg3Sb2 host material, we have successfully synthesized various p-type Mg3-xZnxSb2/Sb composites, and with an increase in Zn content, the resistivity and zT value of the composites have improved.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Ceramics
Fei-Hung Lin, Chia-Jyi Liu
Summary: Bi2Te3-based thermoelectric materials are the largest segment of sales in thermoelectric products. In this study, we propose an energy-efficient synthesis method conforming to the 6th principle for green chemistry to manufacture Bi2Te3-based thermoelectric materials. By studying the formation mechanism of n-Bi2Te3 nanocomposites synthesized at room temperature, we found that nanosized Bi and Te would first form before the growth of n-Bi2Te3. To shorten the growth period, we developed a procedure using nanosized precursors of Bi, Sb, and Te, followed by heat treatment. The resulting zT values were 1.27 at 400 K for p-(Bi, Sb)(2)Te-3-Te composite and zT = 1 for n-Bi2Te3 at 425 K.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Immanuel Paulraj, Vinothkumar Lourdhusamy, Zong-Ren Yang, Chia-Hsin Wang, Chia- Jyi Liu
Summary: A new feasible strategy is adopted to fabricate hybrid inorganic-organic composites by soaking ZnSb in EG-treated PEDOT:PSS solution. The composites exhibit improved properties such as decreased lattice constants, increased bulk density, and decreased porosity with increasing soaking days. The hybrid ZnSb/EG-treated PEDOT:PSS composite with a soaking time of 30 days shows a higher power factor and lower thermal conductivity, resulting in an improved magnitude of zT (0.71 at 525 K).
JOURNAL OF POWER SOURCES
(2023)
Article
Materials Science, Ceramics
Ankara Bhaskar, Hsin-Chang Lai, Yen-Liang Liu, Chia-Jyi Liu
CERAMICS INTERNATIONAL
(2017)
