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We design a multiferroic metal that combines seemingly incompatible ferromagnetism, ferroelectricity, and metallicity by hole doping a two-dimensional (2D) ferroelectric with high density of states near the Fermi level. The strong…

Materials Science · Physics 2021-08-12 Xu Duan , Jiawei Huang , Bin Xu , Shi Liu

We report a theoretical study of the effects of electronic correlations, magnetic properties, and chemical bonding in the recently synthesized high-pressure orthorhombic phase of FeN$_2$ using the DFT+dynamical mean-field theory approach.…

Strongly Correlated Electrons · Physics 2024-07-25 I. V. Leonov

Insulating FeGa$_3$ poses peculiar puzzles beyond the occurrence of an electronic gap in an intermetallic compound. This Fe-based material has a very distinctive structural characteristic with the Fe atoms occurring in dimers. The…

Strongly Correlated Electrons · Physics 2015-12-01 Antia S. Botana , Yundi Quan , Warren E. Pickett

Previous studies have demonstrated spin-orbit torque (SOT) switching of Mn3Sn where the spin polarization lies in the kagome plane (configuration I). However, the critical current density ($ J_{crit}$) is unrealistically large ($…

Mesoscale and Nanoscale Physics · Physics 2023-08-17 Zhengde Xu , Xue Zhang , Yixiao Qiao , Gengchiau Liang , Shuyuan Shi , Zhifeng Zhu

Using first-principles density functional theory method, we have investigated the distribution and magnetism of doped Mn atoms in the vicinity of the 3 (112) grain boundary in Ge. We find that at low concentration, the substitutional sites…

Materials Science · Physics 2010-05-24 W. Wang , S. L. Zhang , Z. X. Tian , W. Xiao

The discovery of higher-temperature superconductivity in FeSe monolayers on SrTiO$_3$ (STO) substrates has sparked a surge of interest in the interface superconductivity. One point of the agreement reached to date is that modulation doping…

Superconductivity · Physics 2022-06-27 Fengmiao Li , Ilya Elfimov , George A. Sawatzky

Zero-field and longitudinal-field muon-spin-relaxation measurements have been performed in partially Fe-substituted La2-xSrxCu1-yFeyO4 in a wide range of hole concentration, to investigate the magnetic state induced by the Fe substitution…

Superconductivity · Physics 2015-06-05 K. M. Suzuki , T. Adachi , Y. Tanabe , H. Sato , Risdiana , Y. Ishii , T. Suzuki , I. Watanabe , Y. Koike

The magnetization and electric polarization of a polar antiferromagnet Fe$_2$Mo$_3$O$_8$ are studied up to 66 T for spin-saturation magnetic fields applied along the polar axis. The magnetization process at 1.4 K exhibited multistep…

Magnetoelectric (ME) materials displaying strong magnetically induced polarization have attracted considerable interest due to their potential applications in spintronics and various fast electrically controlled magnetic devices.…

Defect chemistry, strain, and structural, magnetic and electronic degrees of freedom constitute a rich space for the design of functional properties in transition metal oxides. Here, we show that it is possible to engineer polarity and…

Materials Science · Physics 2021-09-15 Chiara Ricca , Ulrich Aschauer

Here we systematically investigate the impact of the spin direction on the electronic and optical properties of transition metal phosphorus trichalcogenides (MPX$_3$, M=Mn, Ni, Fe; X=S, Se) exhibiting various antiferromagnetic arrangement…

This study investigates Mn-Zn ferrites (nominal composition \ce{Mn_{0.5}Zn_{0.5}Fe2O4}, MZF) substituted with tetravalent (\ce{Si^{4+}}), trivalent (\ce{Co^{3+}}), and divalent (\ce{Ca^{2+}}, \ce{Mg^{2+}}, \ce{Sn^{2+}}) ions. We…

Materials Science · Physics 2025-06-10 Jiahao Li , Kusma Kumari Cheepurupalli , Niall J. English , Sateesh Bandaru , Xuefeng Zhang

The percentage of substitutional doping of magnetic atoms (Mn) in group-IV-based dilute magnetic semiconductors (DMS) can be increased by co-doping with another conventional electronic dopant (e-dopant) [Zhu et al., Phys. Rev. Lett. 100,…

Materials Science · Physics 2009-06-04 Hua Chen , Wenguang Zhu , Efthimios Kaxiras , Zhenyu Zhang

Doping Bi$_2$Se$_3$ by magnetic ions represents an interesting problem since it may break the time reversal symmetry needed to maintain the topological insulator character. Mn dopants in Bi$_2$Se$_3$ represent one of the most studied…

Materials Science · Physics 2020-02-26 K. Carva , P. Baláž , J. Šebesta , I. Turek , J. Kudrnovský , F. Máca , V. Drchal , J. Chico , V. Sechovský , J. Honolka

The Mn2Ge2Te6 shows intrinsic ferromagnetic (FM) order, with Curie temperature (Tc) of 316 K. The FM order origins from superexchange interaction between Mn and Te atoms. Mn2Ge2Te6 is half-metal (HM), and spin-\b{eta} electron is a…

Chemical Physics · Physics 2022-05-04 Ziyuan An , Ya Su , Shuang Ni , Zhaoyong Guan

Doping of the graphene lattice with transition metal atoms resulting in high magnetic anisotropy energy (MAE) is an important goal of materials research owing to its potential application in spintronics. In this article, by using…

Metallorganic molecules have been proposed as excellent spin filters in molecular spintronics because of the large spin-polarization of their electronic structure. However, most of the studies involving spin transport, have disregarded…

Mesoscale and Nanoscale Physics · Physics 2015-04-29 P. N. Abufager , R. Robles , N. Lorente

Hexagonal RMnO3 is a multiferroic compound with a giant spin-lattice coupling at an antiferromagnetic transition temperature [1]. Despite extensive studies over the past two decades, however, the origin and underlying microscopic mechanism…

Strongly Correlated Electrons · Physics 2017-03-08 Seongil Choi , Hasung Sim , Sunmin Kang , Ki-Young Choi , Je-Geun Park

We investigate the electronic structure and magnetic properties of a $J_\text{eff} = 1/2$ iridate Ca$_4$IrO$_6$ and the implications of doping electrons and holes using ab initio density functional theory. Our calculations considering…

Strongly Correlated Electrons · Physics 2022-09-02 Avishek Singh , Jayita Chakraborty , Nirmal Ganguli

We have synthesized Cr1.4Fe0.6O3 compound through mechanical alloying of Cr2O3 and Fe2O3 powders and subsequent thermal annealing. The XRD spectrum, SEM picture and microanalysis of EDAX spectrum have been used to understand the structural…

Materials Science · Physics 2015-05-13 R. N. Bhowmik , Nrisimha Murty. M , Sekhar Srinadhu. E
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