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In specular reflection experiments the reflected beam from the end side of thick substrates is typically neglected. This is equivalent to assuming the substrates as semi-infinite matter. However, it is known that we should also consider the…

Materials Science · Physics 2007-05-23 S. F. Masoudi

In this letter we report a direct observation of a magnetic proximity effect in an amorphous thin film exchange-spring magnet by the use of neutron reflectometry. The exchange-spring magnet is a trilayer consisting of two ferromagnetic…

Materials Science · Physics 2020-10-14 A. J. Qviller , F. Magnus , B. J. Kirby , B. Hjörvarsson , C. Frommen , B. C. Hauback

Perpendicular magnetic anisotropy was found to be highly sensitive to the nominal thickness and morphology of laterally heterogeneous CoPd films in the vicinity of the metal insulator transition. We used the effect to tune the anisotropy by…

Materials Science · Physics 2022-05-04 Gregory Kopnov , Alexander Gerber

Boron carbide thin films of different thicknesses deposited by ion beam sputtering were studied. The deposited films were characterized by grazing incidence hard x-ray reflectivity (GIXR), resonant soft x-ray reflectivity (RSXR), x-ray…

Materials Science · Physics 2017-08-25 P. N. Rao , R. K. Gupta , K. Saravanan , A. Bose , S. C. Joshi , T. Ganguli , S. K. Rai

Spin-polarized scanning tunneling microscopy is used to identify the magnetic state of different thin films on a Re(0001) substrate, which becomes superconducting below 1.7 K. All magnetic films contain an Fe/Ir interface, which is known to…

Materials Science · Physics 2020-08-12 André Kubetzka , Jan M. Bürger , Roland Wiesendanger , Kirsten von Bergmann

The behavior of ferroelectricity at the nanoscale is the focus of increasing research activity because of intense interest in the fundamental nature of spontaneous order in condensed-matter systems and because of the many practical…

A MOKE magnetometry unit simultaneously sensitive to both in-plane magnetization components, based on an intensity differential detection method, allows us to observe the uniaxial anisotropy impressed during CoFe-deposition and to…

Ferroelectric thin films present a powerful platform for next generation computing and memory applications. However, domain morphology and dynamics in buried ferroelectric stacks have remained underexplored, despite the importance for real…

Materials Science · Physics 2025-08-29 Megan O. Hill Landberg , Bixin Yan , Huaiyu Chen , Efe Ipek , Morgan Trassin , Jesper Wallentin

We use the high spatial sensitivity of the anomalous Hall effect in the ferromagnetic semiconductor Ga1-xMnxAs, combined with the magneto-optical Kerr effect, to probe the nanoscale elastic flexing behavior of a single magnetic domain wall…

Mesoscale and Nanoscale Physics · Physics 2011-12-08 A. L. Balk , M. E. Nowakowski , M. J. Wilson , D. W. Rench , P. Schiffer , D. D. Awschalom , N. Samarth

The thickness and interfacial geometry of hexagonal boron nitride (hBN) films grown by chemical vapor deposition on polycrystalline nickel foils is studied using low-energy electron microscopy (LEEM). The reflectivity of the electrons,…

Mesoscale and Nanoscale Physics · Physics 2017-09-22 P. C. Mende , Q. Gao , A. Ismach , H. Chou , M. Widom , R. Ruoff , L. Colombo , R. M. Feenstra

Few-layer flakes of hexagonal boron nitride were prepared by ultrasonication of bulk crystals and agglomerated to form thin films. The transmission and reflection spectra of the thin films were measured. The spectral dependences of the…

Mesoscale and Nanoscale Physics · Physics 2022-11-18 L. V. Kotova , L. A. Altynbaev , M. O. Zhukova , B. T. Hogan , A. Baldycheva , V. P. Kochereshko

Nickel nitride (Ni-N) thin film samples were deposited using reactive magnetron sputtering process utilizing different partial flow of N2 (RN2). They were characterized using x-ray reflectivity (XRR), x-ray diffraction (XRD) and x-ray…

Materials Science · Physics 2020-04-23 Nidhi Pandey , Mukul Gupta , Jochen Stahn

Thickness modulation at the edges of nanostructured magnetic thin films is shown to have important effects on their perpendicular magnetic anisotropy. Thin film wires with tapered edges were made from [Co/Pd]20 multilayers or L10-FePt films…

Mesoscale and Nanoscale Physics · Physics 2015-10-30 Jinshuo Zhang , Pin Ho , Jean Anne Currivan-Incorvia , Saima A. Afroz , M. Baldo , Caroline A. Ross

Polarimetry provides key physical information on the properties of interacting binary systems, sometimes difficult to obtain by any other type of observation. Indeed, radiation processes such as scattering by free electrons in the hot…

Solar and Stellar Astrophysics · Physics 2019-10-16 Tariq Shahbaz

We report the complex optical conductivity of a superconducting thin-film of Nb$_{0.5}$Ti$_{0.5}$N in an external magnetic field. The field was applied parallel to the film surface and the conductivity extracted from far-infrared…

Superconductivity · Physics 2013-04-04 Xiaoxiang Xi , J. Hwang , C. Martin , D. B. Tanner , G. L. Carr

The axial next-nearest neighbour Ising (ANNNI) model is studied for thin films of up to $L= 10$ layers, with a distinct phase diagram for each film thickness. The systematics of the ordered phases, as obtained from mean-field theory, Monte…

Condensed Matter · Physics 2009-10-31 W. Selke , D. Catrein , M. Pleimling

We reanalyze the seminal work by Dolan and Osheroff [Phys. Rev. Lett. $\textbf{43}$, 721 (1979)] which reported anomalous low-temperature conduction of high-resistivity thin-film metal strips. We argue that the observed logarithmic increase…

Mesoscale and Nanoscale Physics · Physics 2023-02-17 Juhn-Jong Lin , Zhi-Qing Li , Chih-Yuan Wu , Sheng-Shiuan Yeh

We have a choice of methods for examining domains at the surface of a ferromagnet that depend on probing the stray field distribution, but these methods do not work in antiferromagnets or compensated ferrimagnets, which produce no stray…

Materials Science · Physics 2018-12-14 K. E. Siewierska , N. Teichert , R. Schäfer , J. M. D. Coey

Using a combination of resonant soft x-ray scattering, magnetometry, x-ray reflectivity and microscopy techniques we have investigated the magnetic properties and microstructure of a series of perpendicular anisotropy Co/Pt multilayer films…

Herein, the concept of point of darkness based on polarized light phase difference and absorption of light is demonstrated by simulations using low refractive index and extinction coefficient semiconductor and dielectric, and high…

Optics · Physics 2022-02-17 Ilze Aulika , Martins Zubkins , Jelena Butikova , Juris Purans