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Related papers: CoFeB/MgO/CoFeB structures with orthogonal easy ax…

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We investigated an out-of-plane exchange bias system that is based on the antiferromagnet MnN. Polycrystalline, highly textured film stacks of Ta / MnN / CoFeB / MgO / Ta were grown on SiO$_x$ by (reactive) magnetron sputtering and studied…

Materials Science · Physics 2017-05-24 Philipp Zilske , Dominik Graulich , Mareike Dunz , Markus Meinert

We investigate single CoFeB nanotubes with hexagonal cross-section using dynamic cantilever magnetometry (DCM). We develop both an analytical model based on the Stoner-Wohlfarth approximation and a broadly applicable numerical framework for…

Mesoscale and Nanoscale Physics · Physics 2016-02-09 B. Gross , D. P. Weber , D. Rüffer , A. Buchter , F. Heimbach , A. Fontcuberta i Morral , D. Grundler , M. Poggio

Ferromagnetic resonance (FMR) technique has been used to study the magnetization relaxation processes and magnetic anisotropy in two different series of the Co2FeSi (CFS) Heusler alloy thin films, deposited on the Si(111) substrate by UHV…

Materials Science · Physics 2019-09-04 Binoy Krishna Hazra , S. N. Kaul , S. Srinath , M. Manivel Raja

Single crystals of $\alpha$-MnTe were synthesized by chemical vapor transport using iodine as the transport reagent. Structural characterization by powder x-ray diffraction confirmed the hexagonal structure (space group P6$_{3}$/mmc).…

Oxygen plays a critical role in strongly correlated transition metal oxides as crystal field effect is one of the key factors that determine the degree of localization of the valence d/f states. Based on the localization, a set of…

Materials Science · Physics 2016-03-29 Ajit Jena , B. R. K. Nanda

A combination of theoretical modelling and experiments reveals the origin of the large perpendicular magnetic anisotropy (PMA) that appears in nanometer-thick epitaxial Co films intercalated between graphene (Gr) and a heavy metal (HM)…

We report the imaging of magnetic domains in ferromagnetic CoNiB nanotubes with very long aspect ratio, fabricated by electroless plating. While axial magnetization is expected for long tubes made of soft magnetic materials, we evidence…

A topological modulation of magnetic thin films can induce a magnetic anisotropy of magnetostatic origin. In this letter, we report on the magnetic properties of NiFe layers deposited on wavy shaped Si substrates. Without any modulation,…

Materials Science · Physics 2009-01-20 J. Briones , F. Montaigne , G. Lengaigne , D. Lacour , M. Hehn

We have investigated the elastic properties of the cubic dense Kondo compound Ce0.75La0.25B6 by means of ultrasonic measurements. We have obtained magnetic fields vs temperatures (H-T) phase diagrams under magnetic fields along the…

Strongly Correlated Electrons · Physics 2007-05-23 Osamu Suzuki , Shintaro Nakamura , Mitsuhiro Akatsu , Yuichi Nemoto , Terutaka Goto , Satoru Kunii

We show that the magnetic characteristics of Ta|CoFeB|MgO magnetic heterostructures are strongly influenced by doping the Ta underlayer with nitrogen. In particular, the saturation magnetization drops upon doping the Ta underlayer,…

We examine the anisotropic properties of the exchange stiffness constant, $\mathcal{A}$, for rare-earth permanent magnet, Nd$_2$Fe$_{14}$B, by connecting analyses with two different scales of length, i.e., Monte Carlo (MC) method with an…

Materials Science · Physics 2018-08-22 Yuta Toga , Masamichi Nishino , Seiji Miyashita , Takashi Miyake , Akimasa Sakuma

We report on the optical characterization of non-magnetic metal/ferromagnetic (Co$_{20}$Fe$_{60}$B$_{20}$)/MgO heterostructures and interfaces by using mid infrared spectroscopic ellipsometry at room temperature. We extracted for the…

Mesoscale and Nanoscale Physics · Physics 2023-09-07 J. M. Flores-Camacho , B. Rana , R. E. Balderas-Navarro , A. Lastras-Martínez , Y. Otani , J. Puebla

Pronounced anisotropy of magnetic properties and complex magnetic order of a new oxi-halide compound Co7(TeO3)4Br6 has been investigated by powder and single crystal neutron diffraction, magnetization and ac susceptibility techniques.…

Materials Science · Physics 2013-05-29 M. Prester , I. Zivkovic , O. Zaharko , D. Pajic , P. Tregenna-Piggott , H. Berger

Co2MnSi (CMS) films of different thicknesses (20, 50 and 100 nm) were grown by radio frequency (RF) sputtering on a-plane sapphire substrates. Our X-rays diffraction study shows that, in all the samples, the cubic <110> CSM axis is normal…

The electric field effect on magnetic anisotropy was studied in an ultrathin Fe(001) monocrystalline layer sandwiched between Cr buffer and MgO tunnel barrier layers, mainly through post-annealing temperature and measurement temperature…

The orientation of the magnetization of a Ni(110) surface was investigated using techniques with different probing depths. By making use of electron capture into excited states of fast He atoms, we found that the magnetization of the…

Materials Science · Physics 2011-03-03 Marco Busch , Jens Lienemann , Michael Potthoff , Helmut Winter

We measured geometric and magnetic properties of Co films on the Pd(111) surface by x-ray photoelectron diffraction (XPD), x-ray magnetic circular dichroism (MCD) at the Co L_{2,3} edge, and the surface magneto-optical Kerr effect (SMOKE)…

Strongly Correlated Electrons · Physics 2007-05-23 S. -J. Oh , Wookje Kim , Wondong Kim , B. -H. Choi , Jae-Young Kim , Hoon Koh , H. -J. Kim , J. -H. Park

Effect of misfit strain in the layers of (Ga,Mn)(Bi,As) quaternary diluted magnetic semiconductor, epitaxially grown on either GaAs substrate or (In,Ga)As buffer, on their magnetic and magneto-transport properties has been investigated.…

Materials Science · Physics 2023-07-19 K. Levchenko , T. Andrearczyk , J. Z. Domagala , J. Sadowski , L. Kowalczyk , M. Szot , T. Figielski , T. Wosinski

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…

Both magnetic-resonance damping and the giant magnetoresistance effect have been predicted to be strongly affected by the local density of states in thin ferromagnetic films. We employ the antiferromagnetic coupling between Co and Gd to…

Materials Science · Physics 2010-03-30 Sezen Demirtas , Ali R. Koymen , Myron B. Salamon