The Effects of Cross Hatch Angle (CHA) on Magnetic Properties and Read/Write Characteristics of CoCrPtTaB Thin Film Media

1994 ◽  
Vol 343 ◽  
Author(s):  
Ga-Lane Chen ◽  
H. Do ◽  
T.-A. Yeh ◽  
J. M. Sivertsen ◽  
J. H. Judy
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Intensity Ratio ◽  
Media Industry ◽  
Signal Noise ◽  
Media Noise ◽  
Magnetic Performance ◽  
Squareness Ratio ◽  
The Relationship ◽  
Tribology Performance

ABSTRACTCross-hatch type texturing has been widely used to replace circumferential texturing in the thin film media industry for optimizing tribology performance. However, higher “cross hatch angle” (CHA) may degrade magnetic performance. The relationship between texturing cross hatch angle (CHA) and magnetic properties and their effects on the read/write characteristics of sputtered thin film media are discussed in this paper. As the CHA increases, both the orientation ratio (OR) and the squareness ratio “S(c)/S(r)” decrease. The film with the highest OR is located at CHA=90, which has the lowest media noise. The medium has highest signal/noise ratio when CHA is equal to 90. PW50 can decrease as much as 4 nanoseconds as CHA increases to 730. By calculating a ratio of the intensity of Cr (110) + CoCrPtTaB (0002) to the intensity of Cr (200), we are able to correlate the intensity ratio to magnetic properties and read/write characteristics.

Effect of Light Intensity on Magnetic Properties of SrTiO3 Thin- Films

2020 ◽  
Vol 855 ◽  
pp. 208-212
Author(s):  
Putri Lailatul Bintari ◽  
Vania Rahmawaty ◽  
Endah Kinarya Palupi ◽  
Nazopatul Patonah ◽  
Irmansyah ◽  
...  
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Angular Velocity ◽  
Titanium Isopropoxide ◽  
Solution Deposition ◽  
Frequency Magnetic Field ◽  
Lcr Meter ◽  
The Relationship ◽  
Effect Of Light ◽  
Spin Coater

We have grown a SrTiO3 thin film from strontium acetate and titanium isopropoxide using chemical solution deposition (CSD) method using a spin coater, and furnace annealed with a temperature of 850°C for 8 hours. We have assessed the thin-film frequency, magnetic field, and electric charges using LCR meter and light intensities of 0 (dark), 4000, 8000, 12000 lux. From the data of LCR meter, it can be measured and see the relationship between the current and the angular velocity will be decreased. Also, the results of the measurements obtained the relationship between magnetic fields and angular velocity is reduced as well. Therefore, we can be assumed the higher the intensity of light shall lower the magnetic properties.

Structural Characterization of Magnetic Recording Media by Using Grazing Incident and Conventional X-Ray Diffraction

1992 ◽  
Vol 36 ◽  
pp. 197-202
Author(s):  
Po-Wen Wang
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Depth Resolution ◽  
Grazing Incidence ◽  
Recording Media ◽  
Magnetic Recording Media ◽  
X Ray Diffraction ◽  
X Ray ◽  
The Relationship

In recent years, the microstructure of Co-based alloy magnetic thin film disks has been studied extensively by using a conventional x-ray diffraction (XRD) technique(1-4). Efforts to understand the relationship between the microstructure and the magnetic properties of disk had been limited due to the lack of depth resolution in the conventional theta-2theta scanning technique. In this paper, a fixed 0.5 degree of grazing incidence(5) 2-theta scan X-ray diffraction (GIXRD) technique was used to characterize the thin film disk microstructure and therefore to correlate with the magnetic properties.

Elucidating the relationship between nanoparticle morphology, nuclear/magnetic texture and magnetic performance of sintered SrFe12O19 magnets

Nanoscale ◽  
2020 ◽  
Vol 12 (17) ◽  
pp. 9481-9494 ◽  
Author(s):  
Matilde Saura-Múzquiz ◽  
Anna Zink Eikeland ◽  
Marian Stingaciu ◽  
Henrik Lyder Andersen ◽  
Cecilia Granados-Miralles ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Pole Figure ◽  
Powder Diffraction ◽  
High Performance ◽  
Magnetic Texture ◽  
X Ray ◽  
Magnetic Performance ◽  
Synchrotron Powder Diffraction ◽  
Nanoparticle Morphology ◽  
The Relationship

The relationship between nanoparticle morphology, self-induced atomic/magnetic texture and magnetic properties of high-performance hexaferrite magnets is elucidated using neutron/X-ray pole figure analysis and neutron/synchrotron powder diffraction.

Magnetostructural relationships in [Ni(dmit)2] − radical anions

2021 ◽  
Author(s):  
Jhon Enrique Zapata Rivera ◽  
Carmen J. Calzado
Keyword(s):  
Magnetic Properties ◽  
Radical Anions ◽  
The Relationship

This work explores the relationship between the magnetic properties of salts based on the [Ni(dmit)2]− radicals and the different arrangement that these radicals can adopt in the crystals, induced by...

scholarly journals High-yield fabrication of perpendicularly magnetised synthetic antiferromagnetic nanodiscs

Nano Research ◽  
2021 ◽  
Author(s):  
Emma N. Welbourne ◽  
Tarun Vemulkar ◽  
Russell P. Cowburn
Keyword(s):  
Thin Film ◽  
Magnetic Properties ◽  
Sacrificial Layer ◽  
Nanosphere Lithography ◽  
High Yield ◽  
Perpendicular Anisotropy ◽  
Ion Milling ◽  
Lift Off

AbstractSynthetic antiferromagnetic (SAF) particles with perpendicular anisotropy display a number of desirable characteristics for applications in biological and other fluid environments. We present an efficient and effective method for the patterning of ultrathin Ruderman-Kittel-Kasuya-Yoshida coupled, perpendicularly magnetised SAFs using a combination of nanosphere lithography and ion milling. A Ge sacrificial layer is utilised, which provides a clean and simple lift-off process, as well as maintaining the key magnetic properties that are beneficial to target applications. We demonstrate that the method is capable of producing a particularly high yield of well-defined, thin film based nanoparticles.

scholarly journals Precise control of Jeff=12 magnetic properties in Sr2IrO4 epitaxial thin films by variation of strain and thin film thickness

2020 ◽  
Vol 102 (21) ◽  
Author(s):  
Stephan Geprägs ◽  
Björn Erik Skovdal ◽  
Monika Scheufele ◽  
Matthias Opel ◽  
Didier Wermeille ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Magnetic Properties ◽  
Film Thickness ◽  
Epitaxial Thin Films ◽  
Thin Film Thickness ◽  
Precise Control

scholarly journals Thin film bi-epitaxy and transition characteristics of TiO2/TiN buffered VO2 on Si(100) substrates

MRS Advances ◽  
2016 ◽  
Vol 1 (37) ◽  
pp. 2635-2640 ◽  
Author(s):  
Adele Moatti ◽  
Reza Bayati ◽  
Srinivasa Rao Singamaneni ◽  
Jagdish Narayan
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Magnetic Properties ◽  
Frequency Factor ◽  
Misfit Strain ◽  
Buffer Layers ◽  
Intrinsic Defects ◽  
Domain Matching Epitaxy ◽  
Out Of Plane

ABSTRACTBi-epitaxial VO2 thin films with [011] out-of-plane orientation were integrated with Si(100) substrates through TiO2/TiN buffer layers. At the first step, TiN is grown epitaxially on Si(100), where a cube-on-cube epitaxy is achieved. Then, TiN was oxidized in-situ ending up having epitaxial r-TiO2. Finally, VO2 was deposited on top of TiO2. The alignment across the interfaces was stablished as VO2(011)║TiO2(110)║TiN(100)║Si(100) and VO2(110) /VO2(010)║TiO2(011)║TiN(112)║Si(112). The inter-planar spacing of VO2(010) and TiO2(011) equal to 2.26 and 2.50 Å, respectively. This results in a 9.78% tensile misfit strain in VO2(010) lattice which relaxes through 9/10 alteration domains with a frequency factor of 0.5, according to the domain matching epitaxy paradigm. Also, the inter-planar spacing of VO2(011) and TiO2(011) equals to 3.19 and 2.50 Å, respectively. This results in a 27.6% compressive misfit strain in VO2(011) lattice which relaxes through 3/4 alteration domains with a frequency factor of 0.57. We studied semiconductor to metal transition characteristics of VO2/TiO2/TiN/Si heterostructures and established a correlation between intrinsic defects and magnetic properties.

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