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Our first-principles study has revealed unexpected spin polarization of the Pd(001) substrate in contact with antiferromagnetic CoO overlayers. We give an evidence that the ferromagnetism of Pd is caused by the zigzag positions of Co atoms…

Materials Science · Physics 2015-02-19 S. K. Saha , V. S. Stepanyuk , J. Kirschner

The electronic energy structures and magnetic properties of iron-based compounds with group VI elements (FeTe, BiFeO$_3$, SrFe$_{12}$O$_{19}$ and SrCoTiFe$_{10}$O$_{19}$) are studied using the density functional theory (DFT) methods.…

Materials Science · Physics 2015-10-05 G. E. Grechnev , A. A. Lyogenkaya , O. V. Kotlyar , A. S. Panfilov , V. P. Gnezdilov

Rashba interfaces yield efficient spin-charge interconversion and give rise to nonreciprocal transport phenomena. Here, we report magnetotransport experiments in few-nanometer-thick films of PdCoO$_2$, a delafossite oxide known to display a…

Mesoscale and Nanoscale Physics · Physics 2021-11-10 Jin Hong Lee , Takayuki Harada , Felix Trier , Lourdes Marcano , Florian Godel , Sergio Valencia , Atsushi Tsukazaki , Manuel Bibes

We report results of structural, magnetic and transport properties of single crystal CaRu1-xCrxO3 (0≤x≤0.36) and SrRu1-xCrxO3 (0≤x≤0.30). Cr substitution as low as x=0.08 drives CaRu1-xCrxO3 from the paramagnetic…

Strongly Correlated Electrons · Physics 2007-05-23 V. Durairaj , E. Elhami , S. Chikara , X. N. Lin , A. Douglass , G. Cao P. Schlottmann , E. S. Choi , R. P. Guertin

The question of how ferroelectric polarization is coupled to magnetism in magnetoelectric multiferroics, in which both types of order are simultaneously present, is of considerable scientific and practical interest. A recent Letter…

Materials Science · Physics 2009-07-13 Rogerio de Sousa , Joel E. Moore

Double perovskites Sr2FeOsO6 and Ca2FeOsO6 show puzzling magnetic properties, the former a low-temperature antiferromagnet while the later a high-temperature insulating ferrimagnet. Here, in order to understand the underlying mechanism, we…

Materials Science · Physics 2015-08-24 Yusheng Hou , Hongjun Xiang , Xingao Gong

A triple perovskite oxide Ba$_{3}$MnTa$_{2}$O$_{9}$ has been synthesized and its magnetic properties have been investigated through dc and ac magnetization, specific heat, electron spin resonance (ESR) measurements, and density functional…

Through analysis of single crystal neutron diffraction data, we present the magnetic structures of magnetoelectric Co4Nb2O9 under various magnetic fields. In zero-field, neutron diffraction experiments below TN=27 K reveal that the Co2+…

Cr 2p core excited XAS and XMCD spectra of ferromagnetic Cr$_{1-\delta}$Te with several concentrations of $\delta$=0.11-0.33 and ferrimagnetic Cr$_{5}$S$_{6}$ have been measured. The observed XMCD lineshapes are found to very weakly depend…

Materials Science · Physics 2009-11-10 K. Yaji , A. Kimura , C. Hirai , M. Taniguchi , M. Koyama , H. Sato , K. Shimada , A. Tanaka , T. Muro , S. Imada , S. Suga

Magnetic gels are composite materials, consisting of a polymer matrix and embedded magnetic particles. Those are mechanically coupled to each other, giving rise to the magnetostrictive effects as well as to a controllable overall elasticity…

Soft Condensed Matter · Physics 2023-06-21 Segun Goh , Andreas M. Menzel , René Wittmann , Hartmut Löwen

A reduced dimensionality of multiferroic materials is highly desired for device miniaturization, but the coexistence of ferroelectricity and magnetism at the two-dimensional limit is yet to be conclusively demonstrated. Here, we used a…

By systematic first-principles calculations, we study the electronic structure and magnetic property of SrCrO$_3$. Our results suggest that SrCrO$_3$ is a weakly correlated antiferromagnetic (AF) metal, a very rare situation in…

Materials Science · Physics 2010-07-20 Guangtao Wang , Zhi Li , C. Q. Jin , Zhong Fang

We have investigated the magnetic transition and magnetic structure of triple-layered ruthenate Sr4Ru3O10 directly using neutron scattering techniques. Only one ferromagnetic phase is observed, and previously proposed antiferromagnetic…

Materials Science · Physics 2007-05-23 Wei Bao , Z. Q. Mao , M. Zhou , J. Hooper , J. W. Lynn , R. S. Freitas , P. Schiffer , Y. Liu , H. Q. Yuan , M. Salamon

The magnetic structures of the title compounds have been studied by neutron diffraction. In contrast to the isomorphous RNi2B2C compounds wherein a variety of exotic incommensurate modulated structures has been observed, the magnetic…

Strongly Correlated Electrons · Physics 2010-01-25 M. ElMassalami , R. Moreno , H. Takeya , B. Ouladdiaf , J. W. Lynn , R. S. Freitas

Deuteronium jarosite, (D_3O)Fe_3(SO_4)_2(OD)_6, contains a kagome lattice of Heisenberg spins, S=5/2, with a coverage of 97+-1%. DC and AC susceptibility measurements show strong in-plane antiferromagnetic exchange (\theta_CW=-1500+-300K)…

Condensed Matter · Physics 2007-05-23 A. S. Wills , A Harrison , S. A. M. Mentink , T. E. Mason , Z. Tun

Using density-functional theory calculations, we investigated the electronic structure and magnetic exchange interactions of the ordered 3d-5d double perovskite Sr2FeOsO6, which has recently drawn attention for interesting antiferromagnetic…

Materials Science · Physics 2014-07-24 Sudipta Kanungo , Binghai Yan , Martin Jansen , Claudia Felser

Two-dimensional (2D) layered materials possess outstanding mechanical, electronic and optical properties, making them ideal materials for nanoelectromechanical applications. The recent discovery of 2D magnetic materials has promised a new…

Mesoscale and Nanoscale Physics · Physics 2020-01-10 Shengwei Jiang , Hongchao Xie , Jie Shan , Kin Fai Mak

We consider the effect of electron-electron interactions on the current-in-plane (CIP) conductivity and exchange coupling energy of a disordered metallic magnetic multilayer. We analyze its dependence on the value of ferromagnetic splitting…

Mesoscale and Nanoscale Physics · Physics 2010-09-29 Vladimir A. Zyuzin , A. Yu. Zyuzin

Two-dimensional (2D) ferroelectrics and multiferroics have attracted considerable scientific and technological interest in recent years due to the increasing demands for miniaturization and low energy consumption of electronic devices. At…

Materials Science · Physics 2024-12-06 Junting Zhang , Yu Xie , Ke Ji , Xiaofan Shen

We present density functional calculations on the molecule based S=1/2 antiferromagnetic chain compound Cu PM(NO3)2 (H2O)2; PM = pyrimidine. The properties of the ferro- and antiferromagnetic state are investigated at the level of the local…

Materials Science · Physics 2007-05-28 K. Doll , A. U. B. Wolter , H. -H. Klauss