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The electronic structure, magnetic properties and phase formation of hexagonal ferromagnetic Fe$_{3}$Sn-based alloys have been studied from first principles and by experiment. The pristine Fe$_{3}$Sn compound is known to fulfill all the…

The magnon energy and amplitude renormalization due to intraband particle-hole excitations are studied in a metallic antiferromagnet. The change in sign of the intraband contribution with $\omega$ results in significant differences between…

Strongly Correlated Electrons · Physics 2007-05-23 Avinash Singh

We investigate a large variation in a diagonal component of the linear magnetoelectric (ME) susceptibility in a polar ferrimagnet Mn2Mo3O8 while changing the magnetic-ion site from orbital-quenched Mn2+ to Fe2+ with strong uniaxial…

Strongly Correlated Electrons · Physics 2017-01-30 T. Kurumaji , S. Ishiwata , Y. Tokura

We systematically investigated the effects of charge doping and strain on monolayer Fe$_3$GaTe$_2$, and proposed three new novel two-dimensional magnetic materials: monolayer Fe$_3$GaX$_2$ (X=I, Br, Sb). We found that both strain and charge…

Materials Science · Physics 2025-09-10 Qiuhao Wang , Xinlong Yang , Fawei Zheng , Ping Zhang

Here we report the structural, electrical and magnetic properties of Fe doped La0.7Ca0.3Mn1-xFexO3 with x = 0.0 to 1.0 prepared by conventional solid state reaction method. Simulated data on XRD shows an increase in volume with an increase…

Strongly Correlated Electrons · Physics 2012-01-23 Neeraj Kumar , H. Kishan , V. P. S. Awana

Effects of Al, Mn and Sb dopings in CeFe2 and effect of applied pressure have been investigated. Al doping gives rise to the FM-AFM transition and a reduction in the magnetic moment and TC values, clearly indicating the growth of the AFM…

Strongly Correlated Electrons · Physics 2010-05-21 Arabinda Haldar , K. G. Suresh , A. K. Nigam , A. A. Coelho , S. Gama

Magnetic structure evolution of multiferroic hexagonal $YMn_{1-x}Fe_{x}O_{3}$ (${x} = 0, 0.05,$ and $0.1$) has been studied by carrying out detailed temperature-dependent neutron diffraction at zero- and 5T-fields. Thermodynamic data…

Materials Science · Physics 2017-07-26 Sonu Namdeo , S. S. S. Rao , S. D. Kaushik , V. Siruguri , A. M. Awasthi

The possibility of controlling the interfacial properties of artificial oxide heterostructures is still attracting researchers in the field of materials engineering. Here, we used surface sensitive techniques and high-resolution…

Materials Science · Physics 2018-02-14 Santiago J. Carreira , Myriam H. Aguirre , Javier Briatico , Eugen Weschke , Laura B. Steren

Tuning magnetic properties in layered magnets is an important route to realize novel phenomenon related to two-dimensional (2D) magnetism. Recently, tuning antiferromagnetic (AFM) properties through substitution and intercalation techniques…

Control of magnetization and electric polarization is attractive in relation to tailoring materials for data storage and devices such as sensors or antennae. In magnetoelectric materials, these degrees of freedom are closely coupled,…

A flop of electric polarization from $P$$\parallel$$c$ ($P_c$) to $P$$\parallel$$a$ ($P_a$) is observed in MnTiO$_3$ as a spin flop transition is triggered by a $c$-axis magnetic field, $H_{\|c}$=7 T. The critical magnetic field $H_{\|c}$…

Strongly Correlated Electrons · Physics 2014-10-29 Songxue Chi , Feng Ye , H. D. Zhou , E. S. Choi , J. Hwang , Huibo Cao , Jaime A. Fernandez-Baca

This work addresses the effect of substituting Mn$^{3+}$ by Fe$^{3+}$ at the octahedral site of TbMnO$_3$ on the magnetic phase sequence, ferroelectric and magnetoelectric properties, keeping the Fe$^{3+}$ concentration below 5%. The…

Strongly Correlated Electrons · Physics 2017-05-29 R. Vilarinho , E. Queiros , D. J. Passos , D. A. Mota , P. B. Tavares , M. Mihalik , M. Zentkova , M. Mihalik , A. Almeida , J. Agostinho Moreira

The ground-state magnetic properties of hexagonal equiatomic alloy of nominal composition Mn_{0.8}Fe_{0.2}NiGe were investigated through dc magnetization and heat capacity measurements. The alloy undergoes first order martensitic transition…

Strongly Correlated Electrons · Physics 2015-06-23 P. Dutta , S. Pramanick , D. Venkateshwarlu , V. Ganesan , S. Majumdar , D. Das , S. Chatterjee

Spin-polarized calculations within the LDA approximation have been done with the goal of characterizing Ce intermetallic compounds. Symmetry and chemical environment effects on 4f hybridization and, thereafter, on magnetization effects have…

Condensed Matter · Physics 2007-05-23 V. L. Vildosola , A. M. Llois

Polycrystalline YMn1-xFexO3 (YMFO_x) (0 <= x <= 0.1) compounds have been prepared in single phase and characterized by synchrotron X-ray diffraction, X-ray absorption near edge spectroscopy, magnetization, and dielectric measurements.…

Materials Science · Physics 2017-07-26 Sonu Namdeo , A. K. Sinha , M. N. Singh , A. M. Awasthi

The effect of Fe doping in the Mn site on the magnetic, transport and structural properties of polycrystalline La1/2Ca1/2MnO3 was studied. Doping with low Fe concentration (< 10%) strongly affects electrical transport and magnetization.…

Materials Science · Physics 2016-08-31 P. Levy , L. Granja , E. Indelicato , D. Vega , G. Polla , F. Parisi

Controlling magnetic anisotropy energy (MAE) in two-dimensional (2D) ferromagnetic materials is crucial for designing novel spintronic devices. Using first-principles calculations, we systematically investigate the magnetic properties of…

Materials Science · Physics 2024-11-22 Xunwu Hu , Dao-Xin Yao , Kun Cao

The chemical selectivity and great sensitivity of the Extended X-ray Absorption Spectroscopy technique allowed the determination, in the paramagnetic phase, of the structural distortions induced by doping in the spin-Peierls CuGeO$_3$…

We present a theoretical study of diluted magnetic semiconductors that includes spin-orbit coupling within a realistic host band structure and treats explicitly the effects of disorder due to randomly substituted Mn ions. While spin-orbit…

Disordered Systems and Neural Networks · Physics 2009-11-13 Byounghak Lee , Xavier Cartoixa , Nandini Trivedi , Richard M. Martin

Using neutron inelastic scattering, we investigate the low-energy spin fluctuations in Fe1+xTe as a function of both temperature and interstitial iron concentration. For Fe1.057(7)Te the magnetic structure is defined by a commensurate…

Superconductivity · Physics 2015-05-27 C. Stock , E. E. Rodriguez , P. Zavalij , M. A. Green , J. A. Rodriguez-Rivera