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We studied the structural and magnetic properties of \textit{in-situ} grown iron mononitride (FeN) thin films. Initial stages of film growth were trapped utilizing synchrotron based soft x-ray absorption near edge spectroscopy (XANES) at…

材料科学 · 物理学 2019-02-12 Mukul Gupta , Nidhi Pandey , Niti , V. R. Reddy , D. M. Phase , Kai Schlage , Hans-Christian Wille , Ajay Gupta

Iron phthalocyanine (FePc) is a molecular semiconductor whose building blocks are one-dimensional ferromagnetic chains. We show that its optical and magnetic properties are controlled by the growth strategy, obtaining extremely high…

强关联电子 · 物理学 2019-10-17 Zhenlin Wu , Peter Robaschik , Luke R. Fleet , Solveig Felton , Gabriel Aeppli , Sandrine Heutz

Interfacial magnetism stimulates the discovery of giant magnetoresistance and spin-orbital coupling across the heterointerfaces, facilitating the intimate correlation between spin transport and complex magnetic structures. Over decades,…

The investigation of the magnetic phase transitions in the parent compounds of Fe-based superconductors is regarded essential for an understanding of the pairing mechanism in the related superconducting compounds. Even though the chemical…

超导电性 · 物理学 2017-12-01 Jonas Warmuth , Martin Bremholm , Philip Hofmann , Jens Wiebe , Roland Wiesendanger

The electronic and magnetic properties of transition metal dichalcogenides are known to be extremely sensitive to their structure. In this paper we study the effect of structure on the electronic and magnetic properties of mono- and bilayer…

We use bulk magnetic susceptibility, electronic specific heat, and neutron scattering to study structural and magnetic phase transitions in Fe$_{1+y}$Se% $_x$Te$_{1-x}$. Fe$_{1.068}$Te exhibits a first order phase transition near 67 K with…

Room temperature ferromagnetism was observed in n-type Fe-doped In2O3 thin films deposited on c-cut sapphire substrates by pulsed laser deposition. Structure, magnetism, composition, and transport studies indicated that Fe occupied the In…

材料科学 · 物理学 2015-05-13 Xiao-Hong Xu , Feng-Xian Jiang , Jun Zhang , Xiao-Chen Fan , Hai-Shun Wu , G. A. Gehring

Measurements of the magnetic susceptibility of Fe/W(110) films with thickness in the range of 1.6 to 2.4 ML Fe, show that in addition to the large response along the easy axis associated with the Curie transition, there is a much smaller,…

介观与纳米尺度物理 · 物理学 2016-10-21 K. Fritsch , R. D'Ortenzio , D. Venus

We perform a study of domain walls in Co/Ir$_n$/Pt(111) (n = 0,1,...,6) films by a combined approach of first-principles calculations and spin dynamics simulations. We determine the tensorial exchange interactions and the magnetic…

介观与纳米尺度物理 · 物理学 2017-01-04 Gy. J. Vida , E. Simon , L. Rózsa , K. Palotás , L. Szunyogh

TaN thin film is an attractive interlayer as well as a diffusion barrier layer in [FeN/TaN](n) multilayers for the application as potential write-head materials in high-density magnetic recording. We synthesized two series of TaN films on…

材料科学 · 物理学 2007-05-23 H. B. Nie , S. Y. Xu , S. J. Wang , L. P. You , Z. Yang , C. K. Ong , J. Li , T. Y. F. Liew

La(Fe,Si)$_{13}$-based compounds are considered to be very promising magnetocaloric materials for magnetic refrigeration applications. Many studies have focused on this material family but only in bulk form. In this paper, we report the…

材料科学 · 物理学 2020-06-03 N. H. Dung , N. B. Doan , P. De Rango , L. Ranno , K. G. Sandeman , N. M. Dempsey

The magnetic domain structure is studied in epitaxial Fe$_{100-x}$Ga$_x$/MgO(001) films with 0 $<$ x $<$ 30 and thicknesses below 60 nm by magnetic force microscopy. For low gallium content, domains with the magnetization lying in the film…

材料科学 · 物理学 2019-07-31 Adrián Begué , Maria Grazia Proietti , José I. Arnaudas , Miguel Ciria

Multiferroic BiFeO3 (BFO) thin film exhibiting desired ferroelectric and enhanced magnetic properties was grown on La0.67Sr0.33MnO3 (LSMO) buffered Pt/TiO2/SiO2/Si substrates by off-axis RF magnetic sputtering, where a highly (111)-oriented…

材料科学 · 物理学 2012-03-05 Qingqing Ke , Wenlai Lu , Xuelian Huang , John Wang

Antiferromagnetic hexagonal MnTe is a promising material for spintronic devices relying on the control of antiferromagnetic domain orientations. Here we report on neutron diffraction, magnetotransport, and magnetometry experiments on…

This work reports on the structural and magnetic properties of Mn$_{2.7-x}$Fe$_{x}$Ga$_{1.3}$ Heusler films with different Fe content x (0 $\leqslant$ x $\leqslant$ 1.2). The films were deposited heteroepitaxially on MgO single crystal…

Domain phases in ultrathin Fe/Ni/W(110) films with perpendicular anisotropy have been studied using the ac magnetic susceptibility. Dynamics on time scales of minutes to hours were probed by quenching the system from high temperature to the…

介观与纳米尺度物理 · 物理学 2015-05-13 N. Abu-Libdeh , D. Venus

We report on domain formation and magnetization reversal in epitaxial Fe films on ferroelectric BaTiO3 substrates with ferroelastic a-c stripe domains. The Fe films exhibit biaxial magnetic anisotropy on top of c domains with out-of-plane…

First-principles density-functional theory calculations show switching magnetization by 90 degree can be achieved in ultrathin BFO film by applying external electric-field. Up-spin carriers appear to the surface with positive field while…

材料科学 · 物理学 2013-02-01 Hong-Jian Feng

Magnetic materials with kagome crystal structure exhibit rich physics such as frustrated magnetism, skyrmion formation, topological flat bands, and Dirac/Weyl points. Until recently, most studies on kagome magnets have been performed on…

We investigate the scaling of the ground state energy and optimal domain patterns in thin ferromagnetic films with strong uniaxial anisotropy and the easy axis perpendicular to the film plane. Starting from the full three-dimensional…

偏微分方程分析 · 数学 2019-05-14 Hans Knüpfer , Cyrill B. Muratov , Florian Nolte