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相关论文: New Samarium and Neodymium based admixed ferromagn…

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We investigate the effect of alloying at the 3d transition metal site of a rare-earth-transition metal oxide, by considering NdFe0.5Cr0.5O3 alloy with two equal and random distribution of 3d ions, Cr and Fe, interacting with an early 4f…

Exchange bias effect is an important attribute in several device applications. Traditionally, it is discussed as a form of exchange anisotropy at the interface between the ferromagnetic/antiferromagnetic layers of two distinct systems. We…

In this paper, specific features of Sm magnetism in an intermetallic compound have been studied. For this purpose, a high-quality single crystal of SmPd2Al3 was grown and subjected to detailed measurements of specific heat, magnetization,…

强关联电子 · 物理学 2010-01-26 J. Pospisil , M. Kratochvilova , J. Prokleska , M. Divis , V. Sechovsky

The magnetization compensation phenomenon is observed for Sm1-xNdxScGe at x = 0.09 at a temperature near 90 K in a small applied magnetic field, which establishes the spin surplus status of magnetic moment of Sm in the host matrix. We also…

材料科学 · 物理学 2014-03-11 P. D. Kulkarni , S. K. Dhar , P. Manfrinetti , A. K. Grover

A classical spin model derived ab initio for rare-earth-based permanent magnet compounds is presented. Our target compound, NdFe$_{12}$N, is a material that goes beyond today's champion magnet compound Nd$_{2}$Fe$_{14}$B in its intrinsic…

材料科学 · 物理学 2016-09-26 Munehisa Matsumoto , Hisazumi Akai , Yosuke Harashima , Shotaro Doi , Takashi Miyake

Altermagnets are a class of materials with compensated magnetic moments, in which spin sublattices are related by specific symmetries other than inversion or translation. This allows time-reversal symmetry to be broken without a net…

Magnetic topological semimetals have attracted intense attention recently since these materials carry a great promise for potential applications in novel spintronic devices. Here, we report an intimate interplay between lattice, Eu magnetic…

强关联电子 · 物理学 2022-03-18 Qiang Zhang , Jinyu Liu , Huibo Cao , W. Adam Phelan , J. F. DiTusa , D. Alan Tennant , Zhiqiang Mao

Six half-metallic ferromagnets X0.75Y0.25C (X=Si, Ge, Sn and Y =Ca and Sr) with zinc-blende structure, resulting from alkaline-earth (Ca, Sr) substitution for X, are predicted based on the density functional theory. The calculated total…

材料科学 · 物理学 2012-01-06 Xiao-Ping Wei , Xian-Ru Hu , Hong Deng , Shi-Bin Chu , Jian-Bo Deng

The rare earth neodymium arguably exhibits the most complex magnetic ordering and series of magnetic phase transitions of the elements. Here we report the results of small-angle neutron scattering (SANS) measurements as a function of…

Altermagnets are compensated magnets with unconventional $d$, $g$, and $i$-wave spin order in reciprocal space. So far the search for new altermagnetic candidates has been focused on materials in which the magnetic unit cell is identical to…

The M\"{o}ssbauer Effect(ME) is frequently used to investigate magnetically ordered systems. One usually assumes that the magnetic order induces a hyperfine magnetic field, $B_{hyperfine}$, at the ME active site. This is the case in the…

强关联电子 · 物理学 2015-05-14 D. Coffey , M. DeMarco , P. C. Ho , M. B. Maple , T. Sayles , J. W. Lynn , Q. Huang , S. Toorongian , M. Haka

We investigated the nature of the magnetic phase transition in the Ge/1-x-y/Sn/x/Mn/y/Te mixed crystals with chemical composition changing in the range of 0.083 < x < 0.142 and 0.012 < y < 0.119. The DC magnetization measurements performed…

材料科学 · 物理学 2012-03-15 L. Kilanski , R. Szymczak , W. Dobrowolski , K. Szałowski , V. E. Slynko , E. I. Slynko

We discuss the properties of semiconducting bulk ZnO when substituted with the magnetic transition metal ions Mn and Co, with substituent fraction ranging from $x$ = 0.02 to $x$ = 0.15. The magnetic properties were measured as a function of…

材料科学 · 物理学 2009-11-10 G. Lawes , A. S. Risbud , A. P. Ramirez , Ram Seshadri

The results of dc and ac magnetization, electrical resistance and heat capacity studies in an admixed rare earth alloy Nd0.75Gd0.25Rh3B2, which is close to the zero magnetization limit, are reported. Novel observations include the two…

Due to the resource criticality of rare-earths (RE), an alternative to the well-known Nd$_2$Fe$_{14}$B magnets with a lower amount of critical elements is required. In this work, density functional theory (DFT) calculations to investigate…

材料科学 · 物理学 2023-02-08 Stephan Erdmann

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

Strong permanent magnets mainly consist of rare earths ($R$) and transition metals ($T$). The main phase of the neodymium magnet, which is the strongest magnet, is Nd$_2$Fe$_{14}$B. Sm$_{2}$Fe$_{17}$N$_{3}$ is another magnet compound having…

材料科学 · 物理学 2018-01-30 Takashi Miyake , Hisazumi Akai

Motivated by the ongoing interest in nitrides as materials for spintronics applications we have studied effects of doping with magnetic transition-metal elements (T=Cr,Mn,Fe,Co and Ni) on the electronic properties of semiconducting scandium…

材料科学 · 物理学 2020-09-23 Fares Benissad , Abdesalem Houari

We report the emergence of altermagnetism, a magnetic phase characterized by the coexistence of compensated spin ordering and momentum-dependent spin splitting, in graphite intercalation compounds (GICs), a prototypical material system long…

材料科学 · 物理学 2025-11-21 Weida Fu , Guo-Dong Zhao , Tao Hu , Wencai Yi , Hui Zhang , Alessandro Stroppa , Wei Ren , Zhongming Ren

The low-temperature antiferromagnetic state of the Sm-ions in both nonsuperconducting SmFeAsO and superconducting SmFeAsO$_{0.9}$F$_{0.1}$ single crystals was studied by magnetic torque, magnetization, and magnetoresistance measurements in…

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