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相关论文: Pressure-stabilized Planar N4-ring and Bonding Pro…

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Compensated ferrimagnets, like antiferromagnets, show no net magnetization but their transport and magneto-optic properties resemble those of ferromagnets, thereby creating opportunities for applications in high-frequency spintronics and…

材料科学 · 物理学 2022-10-26 Rui Zhang , Yangkun He , Daniel Fruchart , J. M. D. Coey , Zsolt Gercsi

Recently, the pressure has been used as external stimuli to induce structural and magnetic phase transitions in many layered quantum materials whose layers are linked by van der Waals forces. Such materials with weakly held layers allow…

We investigate the structural and electronic conditions conducive to superconductivity in layered nickelates using density functional theory with Hubbard corrections (DFT+$U$). For both the bilayer and 1-3 polymorphs of La$_3$Ni$_2$O$_7$,…

超导电性 · 物理学 2025-06-16 Bipasa Samanta , Alexandru B. Georgescu

Here we report the synthesis of metallic, ultraincompressible (bulk modulus $K_{0}$ = 428(10) GPa) and very hard (nanoindentation hardness 36.7(8) GPa) rhenium (V) nitride pernitride Re$_{2}$(N$_{2}$)N$_{2}$. While the empirical chemical…

We report the remarkably robust ferroelectric state in the multiferroic compound Mn$_{1-x}$Zn$_x$WO$_4$. The substitution of the magnetic Mn$^{2+}$ with nonmagnetic Zn$^{2+}$ reduces the magnetic exchange and provides control of the various…

强关联电子 · 物理学 2011-01-12 R. P. Chaudhury , F. Ye , J. A. Fernandez-Baca , B. Lorenz , Y. Q. Wang , Y. Y. Sun , H. A. Mook , C. W. Chu

Magnetic topological insulators, possessing both magnetic order and topological electronic structure, provides an excellent platform to research unusual physical properties. Here, we report a high-pressure study on the anomalous Hall effect…

Recent experiments showed the distinct observations on the transition metal ditelluride NiTe$_2$ under pressure: one reported a superconducting phase transition at 12 GPa, whereas another observed a sign reversal of Hall resistivity at 16…

超导电性 · 物理学 2021-07-14 Jian-Feng Zhang , Yawen Zhao , Kai Liu , Yi Liu , Zhong-Yi Lu

Subtle changes in chemical bonds may result in dramatic revolutions in magnetic properties in solid state materials. MnPt5P, a new derivative of the rare-earth-free ferromagnetic MnPt5As, was discovered and is presented in this work. MnPt5P…

材料科学 · 物理学 2020-06-23 Xin Gui , Ryan A. Klein , Craig M. Brown , Weiwei Xie

Nitrides, carbides and borides of transition metals are an attractive class of hard materials. Our recent preliminary explorations of the binary chemical compounds indicated that chromium-based materials are among the hardest transition…

材料科学 · 物理学 2017-03-08 Alexander G. Kvashnin , Artem R. Oganov , Artem I. Samtsevich , Zahed Allahyari

Three new phases of ternary transitional metal carbides, namely MAX phases, Nb4SiC3, Nb4GeC3 and Nb4GaC3 were proposed by means of density functional theory, and they were all predicted to be mechanically stable. It was figured out that the…

材料科学 · 物理学 2015-09-15 Teng Yue , Baochang Wang , Weiwei Sun , Zhu Xiao-shuo , Feng Xiao-xue , Yan Mu-fu , Fu Yu-dong

Stabilizing nitrogen-rich compound crystals under conventional conditions is a key issue in the development and application of high-energy density materials (HEDMs). Herein, a two-dimensional double-layer interlocked Li4(N5)2 nitrogen-rich…

材料科学 · 物理学 2024-12-04 Zhen Gong , Baiqiang Liu , Xinrui Yang , Hongbo Jing , Ruiqi Xu , Zhigang Wang

In the present work, the structural, magnetic, and electronic properties of the two- and one-dimensional honeycomb structures of recently synthesized MnO [Zhang et al. Nat. Commun., 20, 1073-1078 (2021)] are investigated by using first…

材料科学 · 物理学 2022-01-28 Yigit Sozen , Ugur C. Topkiran , Hasan Sahin

The ferrimagnetic spinel Mn3O4 exhibits large and anisotropic changes in electronic and structural properties in response to an applied magnetic field. These changes are thought to result from the field-dependent tuning---via strong…

强关联电子 · 物理学 2016-06-22 T. Byrum , S. L. Gleason , A. Thaler , G. J. MacDougall , S. L. Cooper

MnAs exhibits a first-order phase transition from a ferromagnetic, high-spin metal NiAs-type hexagonal phase to a paramagnetic, lower-spin insulator MnP-type orthorhombic phase at T_C = 313 K. Here, we report the results of neutron…

材料科学 · 物理学 2009-11-07 J. Mira , F. Rivadulla , J. Rivas , A. Fondado , R. Caciuffo , F. Carsughi , T. Guidi , J. B. Goodenough

New fluoropnictides BaMnPnF with Pn = As, Sb, Bi, are synthesized by stoichiometric reaction of elements with BaF\_2. The compounds crystallize in the tetragonal P4/nmm (No. 129, Z = 2) space group, with the ZrCuSiAs-type structure, as…

强关联电子 · 物理学 2013-07-09 Bayrammurad Saparov , David J. Singh , V. Ovidiu Garlea , Athena S. Sefat

The study of magnetoresistance (MR) phenomena has been pivotal in advancing magnetic sensors and spintronic devices. Helimagnets present an intriguing avenue for spintronics research. Theoretical predictions suggest that MR magnitude in the…

Fe, Mg, and O are among the most abundant elements in terrestrial planets. While the behavior of the Fe-O, Mg-O, and Fe-Mg binary systems under pressure have been investigated, there are still very few studies of the Fe-Mg-O ternary system…

Magnetism in topological materials creates phases exhibiting quantized transport phenomena with applications in spintronics and quantum information. The emergence of such phases relies on strong interaction between localized spins and…

The study of structural, electronic, magnetic, and elastic properties of new series of semi-Heusler alloys MnNbZ (Z=As, Sb) and FeNbZ (Z=Sn, Pb) has been performed by density functional theory. The magnetic phase and hence the structural…

材料科学 · 物理学 2020-09-10 D. K. Yadav , S. R. Bhandari , G. C. Kaphle , Madhav Prasad Ghimire