Control of magnetic flux and eddy currents in magnetic films for on-chip radio frequency inductors: Role of the magnetic vias

2014 ◽  
Vol 115 (17) ◽  
pp. 17E719 ◽  
Author(s):  
Hao Wu ◽  
Donald S. Gardner ◽  
Shirong Zhao ◽  
Hai Huang ◽  
Hongbin Yu
Keyword(s):  
Magnetic Flux ◽  
Radio Frequency ◽  
Eddy Currents ◽  
Magnetic Films ◽  
On Chip

Transmission Electron Microscopy studies of texture of Cr underlayer of magnetic recording hard disk

1991 ◽  
Vol 49 ◽  
pp. 580-581
Author(s):  
L. Tang ◽  
G. Thomas ◽  
M. R. Khan ◽  
S. L. Duan
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Transmission Electron Microscopy ◽  
Magnetic Recording ◽  
Magnetic Thin Films ◽  
Magnetic Films ◽  
Substrate Bias ◽  
Epitaxial Relationship ◽  
Transmission Electron

Cr thin films are often used as underlayers for Co alloy magnetic thin films, such as Co1, CoNi2, and CoNiCr3, for high density longitudinal magnetic recording. It is belived that the role of the Cr underlayer is to control the growth and texture of the Co alloy magnetic thin films, and, then, to increase the in plane coercivity of the films. Although many epitaxial relationship between the Cr underlayer and the magnetic films, such as ﹛1010﹜Co/ {110﹜Cr4, ﹛2110﹜Co/ ﹛001﹜Cr5, ﹛0002﹜Co/﹛110﹜Cr6, have been suggested and appear to be related to the Cr thickness, the texture of the Cr underlayer itself is still not understood very well. In this study, the texture of a 2000 Å thick Cr underlayer on Nip/Al substrate for thin films of (Co75Ni25)1-xTix dc-sputtered with - 200 V substrate bias is investigated by electron microscopy.

scholarly journals Integrated Magnetohydrodynamic Pump with Magnetic Composite Substrate and Laser-Induced Graphene Electrodes

Polymers ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 1113
Author(s):  
Mohammed Asadullah Khan ◽  
Jürgen Kosel
Keyword(s):  
Magnetic Flux ◽  
Flow Rate ◽  
Magnetic Composite ◽  
Propulsive Force ◽  
Closed Channel ◽  
Lab On Chip ◽  
Composite Substrate ◽  
On Chip ◽  
High Level ◽  
Moving Parts

An integrated polymer-based magnetohydrodynamic (MHD) pump that can actuate saline fluids in closed-channel devices is presented. MHD pumps are attractive for lab-on-chip applications, due to their ability to provide high propulsive force without any moving parts. Unlike other MHD devices, a high level of integration is demonstrated by incorporating both laser-induced graphene (LIG) electrodes as well as a NdFeB magnetic-flux source in the NdFeB-polydimethylsiloxane permanent magnetic composite substrate. The effects of transferring the LIG film from polyimide to the magnetic composite substrate were studied. Operation of the integrated magneto hydrodynamic pump without disruptive bubbles was achieved. In the studied case, the pump produces a flow rate of 28.1 µL/min. while consuming ~1 mW power.

Tunable optoelectronic properties of radio frequency sputter-deposited Sb2Se3 thin films: Role of growth angle and thickness

Solar Energy ◽  
2019 ◽  
Vol 194 ◽  
pp. 716-723
Author(s):  
Alapan Dutta ◽  
Ranveer Singh ◽  
Sanjeev Kumar Srivastava ◽  
Tapobrata Som
Keyword(s):  
Thin Films ◽  
Radio Frequency ◽  
Optoelectronic Properties ◽  
Growth Angle ◽  
Sputter Deposited

scholarly journals Preview: 1989 MRS Spring Meeting

MRS Bulletin ◽  
1989 ◽  
Vol 14 (3) ◽  
pp. 51-55
Keyword(s):  
Optical Materials ◽  
Materials Science ◽  
Magnetic Films ◽  
Research Society ◽  
Joint Session ◽  
Linus Pauling ◽  
Spring Meeting ◽  
Materials Research ◽  
The Town

The 1989 Spring Meeting of the Materials Research Society will be held at the Town and County Hotel in San Diego, with events spanning April 22-29. Meeting Chairs Robin Farrow, Dick Siegel and Angelica Stacy have developed a program of 16 technical symposia that reflect the continuing key role of materials science in the development of both mature and emerging technologies.Several new topics will reflect emerging areas, including materials for optical storage of information (Symposium F), ultrathin magnetic films (Symposium G), and materials problems of infrastructure (Symposium P). A special workshop will provide a technology update on diamond films (Symposium P) and will feature a joint session with Symposium H, Optical Materials: Processing and Science.Plenary speaker Linus Pauling, research professor at the Linus Pauling Institute of Science and Medicine, will discuss quasicrystals, materials whose atomic structure displays perfect five-fold symmetry, but whose atomic pattern is never exactly repeated as it would be in conventional crystals. During the Plenary Session MRS will also recognize graduate students who have made outstanding contributions as authors or co-authors of papers presented at the 1989 Spring Meeting.

Abstract P050: Novel Mechanism of Ser-496 ERK5 Phosphorylation and Association with p90RSK Is Critical for Regulating C Terminus of Hsc70-Interacting Protein (CHIP) Ubiquitin E3 Ligase Activity in Diabetes-Mediated Exacerbation of Cardiomyocyte Apoptosis and Left Ventricular Dysfunction After Myocardial Infarction

2011 ◽  
Vol 109 (suppl_1) ◽  
Author(s):  
Nhat-Tu Le ◽  
Yuichiro Takei ◽  
Chang-Hoon Woo ◽  
Tetsuro Shishido ◽  
Yan Lu ◽  
...  
Keyword(s):  
Transgenic Mice ◽  
Cardiac Dysfunction ◽  
Critical Role ◽  
Active Form ◽  
E3 Ligase ◽  
Left Ventricular ◽  
Ang Ii ◽  
Lv Dysfunction ◽  
On Chip

Rationale: Cardiac dysfunction is accelerated in DM patients after MI. Previously, we reported the critical role of ERK5 and CHIP association on CHIP Ub E3 ligase activity, which inhibits inducible cAMP early repressor (ICER)-mediated apoptosis and left ventricle (LV) dysfunction after MI in DM (DM + MI). Yet the regulatory mechanism of ERK5-CHIP has not been established. Objective: Since we found that p90RSK activation was increased in DM heart, we investigated whether p90RSK activation may inhibit ERK5-mediated CHIP activation, and subsequent ICER induction and apoptosis. Methods and Results: The inhibition of p90RSK activation prevented the reduction of ERK5-CHIP binding, CHIP activity, as well as ICER induction and cardiac apoptosis both in vitro after angiotensin II (ang II) stimulation and in vivo after DM + MI. p90RSK and CHIP share a same binding site with ERK5 C-terminal domain (aa571–807), and overexpression of both p90RSK and ERK5 (aa571–807) fragment, but not kinase dead mutant of p90RSK, inhibited ERK5-CHIP association, suggesting the critical role of p90RSK activation on ERK5-CHIP interaction, and competitive nature of p90RSK and CHIP against ERK5 association. Furthermore. LC-MS/MS analysis identified ERK5-S496 as being directly phosphorylated by p90RSK, and ERK5 S496A mutant significantly impaired ang II-mediated inhibition of CHIP Ub ligase activity, suggesting the critical role of Ser-496 phoaphorylation of ERK5 on CHIP activity. Therefore, p90RSK activation is critical for both p90RSK-ERK5 association as well as ERK5-Ser496 phosphorylation, and following disruption of ERK5-CHIP interaction and subsequent inhibition of CHIP Ub ligase activity. The reduction of CHIP Ub ligase activity and LV dysfunction were accelerated both in cardio-specific ERK5 knock out and wild type p90RSK transgenic mice (WT-p90RSK-Tg). Furthermore, double transgenic mice of WT-p90RSK and constitutively active form of MEK5α (specific ERK5 activator) inhibited single WT-p90RSK-Tg-medaited reduction of CHIP Ub ligase activity, LV dysfunction, and improved mortality after MI. Conclusions: These data strongly suggested that p90RSK activation accelerated cardiac dysfunction and apoptosis after DM + MI via inhibiting ERK5-CHIP module.

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