Browsing by Subject "Magnetic anisotropy"

Now showing items 1-20 of 25

Anomalous Hall Effect Behavior in (100) and (110) CrO₂ Thin Films

Mankey, Gary (2011-05-19)

First and second order magnetic anisotropy constants have been determined in (110) and (100) CrO₂ films using magnetometry and anomalous Hall effect measurements. Higher in-plane anisotropy is observed in strain-free (110) ...
Broadband Ferromagnetic Resonance Characterization of Anisotropies and Relaxation in Exchange-biased IrMn/CoFe Bilayers

Mohammadi, Jamileh Beik; Jones, Joshua Michael; Paul, Soumalya; Khodadadi, Behrouz; Mewes, Claudia K. A.; Mewes, Tim; Kaiser, Christian (2017)

The magnetization dynamics of exchange-biased IrMn/CoFe bilayers have been investigated using broadband and in-plane angle-dependent ferromagnetic resonance spectroscopy. The interface energy of the exchange bias effect ...
Correlation Between Topography and Magnetic Surface Anisotropy in Epitaxial Fe Films on Vicinal-to-(001) Au Surfaces with Different Step Orientation

Rickart, M.; Mewes, T.; Demokritov, S. O.; Hillebrands, B.; Scheib, M. (2004)

For an epitaxial, vicinal surface of a magnetic film, the twofold step-induced symmetry about the film normal in the atomic coordination implies a corresponding twofold magnetic surface anisotropy. We show, that for ...
Effect of Substrate Symmetry on the Preferred Magnetization Orientation of Ni Films on Cu

Mankey, Gary (1998-06-04)

For ultrathin Ni films grown on Cu(100) and Cu(110), the easy axis of magnetization starts out in the plane of the films. Above a critical thickness, the preferred magnetization orientation changes to perpendicular to the ...
Frequency-selective Control of Ferromagnetic Resonance Linewidth in Magnetic Multiplayers

Schafer, S.; Pachauri, N.; Mewes, C. K. A.; Mewes, T.; Kaiser, C.; Leng, Q.; Pakala, M. (2012)

We report on a frequency-specific linewidth broadening of the ferromagnetic resonance (FMR) mode of a NiFe free layer within a magnetic multilayer stack. The FMR studies reveal a significant broadening of the FMR linewidth ...
Growth and Characterization of 144 μm Thick Barium Ferrite Single Crystalline Film for Microwave Device Application

Jalli, Jeevan; Hong, Yang-Ki; Bae, Seok; Abo, Gavin S.; Lyle, Andrew; Gee, Sung-Hoon; Lee, Hwachol; Mewes, Tim; Sur, Jeong-Chul; Lee, Sung-Ik (2009)
The Growth Temperature and Measurement Temperature Dependences of Soft Magnetic Properties and Effective Damping Parameter of (FeCo)-Al Alloy Thin Films

Ariake, Yusuke; Wu, Shuang; Kanada, Isao; Mewes, Tim; Tanaka, Yoshitomo; Mankey, Gary; Mewes, Claudia; Suzuki, Takao (2018)
The Growth Temperature and Measurement Temperature Dependences of Soft Magnetic Properties and Effective Damping Parameter of (FeCo)-Al Alloy Thin Films

Mankey, Gary (2018-01-05)

The soft magnetic properties and effective damping parameters of Fe₇₃Co₂₅Al₂ alloy thin films are discussed. The effective damping parameter α_eff measured by ferromagnetic resonance for the 10 nm-thick sample is nearly ...
Inhomogeneous Perpendicular Magnetic Anisotropy as a Source of Higher-order Quasistatic and Dynamic Anisotropies

Mohammadi, J. B.; Cole, K.; Mewes, T.; Mewes, C. K. A. (2018-01-26)

We investigate the influence of lateral variations of the second-order perpendicular anisotropy in thin films on the effective anisotropies required to represent this structure using a macrospin approximation. Second-order and ...
Interfacial Perpendicular Magnetic Anisotropy and Damping Parameter in Ultra Thin Co2FeAl Films

Cui, Yishen; Khodadadi, Behrouz; Schafer, Sebastian; Mewes, Tim; Lu, Jiwei; Wolf, Stuart A. (2013)

B2-ordered Co2FeAl films were synthesized using an ion beam deposition tool. A high degree of chemical ordering 81.2% with a low damping parameter (a) less than 0.004 was obtained in a 50 nm thick film via rapid thermal ...
Investigation of Magnetic Anisotropies and Magnetization Dynamics in Soft Magnetic Materials

Srivastava, Abhishek (University of Alabama Libraries, 2020)

Magnetic anisotropy and damping are two main properties that determine the characteristics of many magnetic devices such as inductors, transformers, hard drives, GMR sensors, MRAM etc. The magnetic materials used in these ...
Low Gilbert Damping in Co2FeSi and Fe2CoSi Films

Sterwerf, Christian; Paul, Soumalya; Khodadadi, Behrouz; Meinert, Markus; Schmalhorst, Jan-Michael; Buchmeier, Mathias; Mewes, Claudia K. A.; Mewes, Tim; Reiss, Günter (2016)
Magnetic and Microwave Properties of Ferrimagnetic Zr-substituted Ba2Zn2Fe12O22 (Zn-Y) Single Crystals

Jalli, Jeevan; Hong, Yang-Ki; Bae, Seok; Lee, Jae-Lin; Abo, Gavin S.; Park, Ji-Hoon; Choi, Byoung-Chul; Mewes, Tim; Kim, Seong-Gon; Gee, Sung-Hoon; Nam, In-Tak; Tanaka, Terumitsu (2011)
The Magnetic Anisotropy and Domain Structure of Permalloy Antidot Arrays

Mankey, Gary (2000-04-28)

The magnetic properties of antidot arrays in permalloy films were studied using magnetic force microscopy (MFM), the magneto-optical Kerr effect (MOKE), and torque magnetometry. New observations of the magnetic domain ...
Magnetic Properties and Structure of Low Temperature Phase MnBi with Island Structure

Mankey, Gary (2017-02-22)

The magnetic properties of the low temperature phase (LTP) MnBi thin films of islands structure are discussed. The LTP MnBi islands are formed onto silica substrates after the multilayers Bi(3.2nm)/Mn(2nm)x N are deposited ...
Magnetic Properties of Low Temperature Phase MnBi of Island Structure

Mankey, Gary (2016-02-29)

The magnetic and structural properties of island-structured LTP MnBi fabricated onto MgO single crystal substrates are discussed. The size and height of the “Volmer-Weber” type islands vary from place to place but are ...
Magnetic Properties of Uniaxial Synthetic Antiferromagnets for Spin-valve Applications

Mankey, Gary (2005-03-25)

The magnetic properties of synthetic antiferromagnetic Si(100)/Ta(5 nm)/Co(t₁)/Ru(0.65nm)/Co(t₂)/Ta(10 nm) with an obliquely sputtered Ta underlayer are reported as a function of the top Co layer thickness, t₂. The ...
Magnetocrystalline Anisotropy in Glancing Angle Deposited Permalloy Nanowire Arrays

Mankey, Gary (2005-06-28)

The magnetic anisotropy and properties of Permalloy (Ni₈₀Fe₂₀) nanowire arrays fabricated by glancing angle deposition with substrate rotation were studied. Epitaxial Cu nanowires, with the long axis textured along the ...
Perpendicular Magnetic Tunnel Junctions Using Co-based Multilayers

Tadisina, Z. R.; Natarajarathinam, A.; Clark, B. D.; Highsmith, A. L.; Mewes, T.; Gupta, S.; Chen, E.; Wang, S. (2010)

CoFeB/MgO/CoFeB magnetic tunnel junctions MTJs with perpendicular magnetic anisotropy PMA free and reference layers composed of Co/M where M=Pd or Ni multilayers have been optimized for high PMA and high tunneling ...
Reducing the Writing Field of L1₀-FePt by Graded Order Parameter

Mankey, Gary (2013-02-21)

The dependence of the magnetic properties of epitaxial Fe₅₀Pt₅₀ films on order parameter (S) was investigated. It was demonstrated that the magnetic anisotropy could be tuned by controlling S which can be controlled by the ...

Now showing items 1-20 of 25

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Browsing by Subject "Magnetic anisotropy"

Browsing by Subject "Magnetic anisotropy"

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