scholarly journals Ferromagnetism with in-plane magnetization, Dirac spin-gapless semiconducting properties, and tunable topological states in two-dimensional rare-earth metal dinitrides

2022 ◽  
Vol 105 (2) ◽  
Author(s):  
Yawei Yu ◽  
Xin Chen ◽  
Xiaobiao Liu ◽  
Jia Li ◽  
Biplab Sanyal ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Two Dimensional ◽  
Semiconducting Properties ◽  
Topological States ◽  
Dirac Spin

A Two-dimensional Rare Earth Metal-Organic Polymer {[Pr2(csph)2(H2O)4]·6H2O}n with 3-Carboxylate-4-sulfonatophenolate (csph) Ligands

2010 ◽  
Vol 65 (1) ◽  
pp. 27-31
Author(s):  
Gang Wu ◽  
Zhu-Mei Wang ◽  
Xiu-Tao Ge ◽  
Xiao-Ling Wang ◽  
Qian-Feng Zhang
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Organic Polymer ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Orthorhombic Space Group ◽  
Carboxylate Groups ◽  
Metal Organic ◽  
Thermal Stability Of

A two-dimensional rare earth metal-organic polymer {[Pr2(csph)2(H2O)4]· 6H2O}n (1) with 3- carboxylate-4-sulfonato-phenolate (csph) ligands was obtained by hydrothermal synthesis and characterized by elemental analysis and IR spectroscopy, and also by single-crystal X-ray diffraction. The crystal is orthorhombic, space group Pbcn with a = 15.9113(6), b = 9.3563(4), c = 16.0497(6) Å , Z = 4, and V = 2240.46(16) Å3. The praseodymium atom is coordinated to eight oxygen atoms from the csph3− ligands and two water molecules to form a distorted dodecahedron. The csph3− ligands involved in forming a two-dimensional framework are all multiply bridging via the sulfonate (μ2, η2) and the carboxylate groups (μ3, η2:η1). The thermal stability of complex 1 was studied by thermogravimetric analysis (TGA), and the photoluminescence properties of complex 1 were also investigated

The Mo2FeB2- and Mn2AlB2-Type Modifications of RE2Ni2Cd (Re = La, Pr, Nd, Sm, Tb, Dy)

2005 ◽  
Vol 60 (3) ◽  
pp. 271-276 ◽  
Author(s):  
Thomas Fickenscher ◽  
Ute C. Rodewald ◽  
Dirk Niepmann ◽  
Ratikanta Mishra ◽  
Marcus Eschen ◽  
...  
Keyword(s):  
Rare Earth ◽  
High Temperature ◽  
Low Temperature ◽  
Rare Earth Metal ◽  
High Frequency ◽  
Earth Metal ◽  
Two Dimensional ◽  
Space Group ◽  
X Ray ◽  
Sample Chamber

The rare earth metal (RE)-nickel-cadmium intermetallics RE2Ni2Cd (RE = La, Pr, Nd, Sm, Tb, Dy) were prepared from the elements in sealed niobium or tantalum tubes in a water-cooled sample chamber of a high-frequency furnace. They crystallize with a tetragonal Mo2FeB2 type low-temperature modification, space group P4/mbm, and an orthorhombic Mn2AlB2 type hightemperature modification, space group Cmmm. The cadmium compounds were characterized through their X-ray powder patterns. Five structures of the low-temperature modifications were refined from X-ray single crystal diffractometer data: α = 763.76(9), c = 387.26(8) pm, wR2 = 0.046, 205 F2 for La2Ni1.67(1)Cd; α = 752.93(7), c = 380.95(6) pm, wR2 = 0.061, 260 F2 for Pr2Ni2Cd; α = 750.88(9), c = 378.33(7) pm, wR2 = 0.051, 195 F2 for Nd2Ni2Cd; α = 743.6(1), c = 374.0(1) pm, wR2 = 0.036, 386 F2 for Sm2Ni1.93(1)Cd; α = 734.9(1), c = 366.1(2) pm, wR2 = 0.030, 252 F2 for Dy2Ni1.94(1)Cd, with 13(12) variables per refinement. The 4g nickel site is only fully occupied in the neodymium and the praseodymium compound. Both modifications can be considered as intergrowths of distorted AlB2 and CsCl related slabs. In both modification the nickel and cadmium atoms build up two-dimensional [Ni2Cd] networks. In the low-temperature modifications the nickel atoms form pairs, while nickel zig-zag chains occur in the high-temperature modifications. These nickel fragments are condensed via the cadmium atoms. The crystal chemistry and the chemical bonding in these intermetallics is discussed

scholarly journals Ferroic orders in two-dimensional transition/rare-earth metal halides

APL Materials ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 110704
Author(s):  
Ming An ◽  
Shuai Dong
Keyword(s):  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Two Dimensional ◽  
Metal Halides

Phase selectivity and tunable photophysical nature of rare earth metal–organic frameworks of EuxY1−x-PTC (H3PTC = 2,4,6-pyridine tricarboxylic acid; x = 0–1)

2020 ◽  
Vol 49 (42) ◽  
pp. 14985-14994
Author(s):  
Xu-Sheng Gao ◽  
Mei-Juan Ding ◽  
Jin Zhang ◽  
Li-Duo Zhao ◽  
Xiao-Ming Ren
Keyword(s):  
Rare Earth ◽  
Solid Solutions ◽  
Rare Earth Metal ◽  
Metal Organic Frameworks ◽  
Earth Metal ◽  
Tricarboxylic Acid ◽  
Excitation Wavelength ◽  
Metal Organic ◽  
Phase Selectivity

All solid solutions (EuxY1−x-PTC, x = 0.013–0.82) are isomorphic to Eu-PTC, but different from Y-PTC, and show phase selectivity as well as excitation wavelength dependent emission.

scholarly journals Experimental Investigation of WE54 magnesium rare earth metal alloys by ageing treatment

2021 ◽  
Vol 1104 (1) ◽  
pp. 012025
Author(s):  
Sachendra ◽  
Shailesh Kumar Singh ◽  
Ujjwal ◽  
Satyajeet Kumar ◽  
Kuldeep Singh
Keyword(s):  
Experimental Investigation ◽  
Rare Earth ◽  
Rare Earth Metal ◽  
Earth Metal ◽  
Metal Alloys ◽  
Ageing Treatment
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