Dendrimer Ligand Directed Nanoplate Assembly
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99 GENERAL AND MISCELLANEOUS↗
Engineering topics
Vo, T.
Publications and source records attributed to Vo, T..
An OSSE for Measuring Winds from the Cubesat Infrared Atmospheric Sounder (CIRAS)
No abstract provided
Vo, T.↗
A CoFeB/MgO/CoFeB perpendicular magnetic tunnel junction coupled to an in-plane exchange-biased magnetic layer
We report a stack structure which utilizes an in-plane exchange-biased magnetic layer to influence the coercivity of the bottom CoFeB layer in a CoFeB/MgO/CoFeB perpendicular magnetic tunnel junction. By employing a thickness wedge deposition technique, we were able to study various aspects of this stack using vibrating sample magnetometer including: (1) the coupling between two CoFeB layers as a function of MgO thickness; and (2) the coupling between the bottom CoFeB and the in-plane magnetic layer as a function of Ta spacer thickness. Furthermore, modification of the bottom CoFeB coercivity allows one to measure tunneling magnetoresistance and resistance-area product (RA) of CoFeB/MgO/CoFeB in this pseudo-spin-valve format using current-in-plane-tunneling technique, without resorting to (Co/Pt){sub n} or (Co/Pd){sub n} multilayer pinning.
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSIC↗
Link capability driven network planning and operation
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communication network efficiency resource allocati↗
Multistage open-tube trap for enrichment of part-per-trillion trace components of low-pressure (below 27-kPa) air samples
A multistage open-tube trap for cryogenic collection of trace components in low-pressure air samples is described. The open-tube design allows higher volumetric flow rates than densely packed glass-bead traps commonly reported and is suitable for air samples at pressures below 27 kPa with liquid nitrogen as the cryogen. Gas blends containing 200 to 2500 parts per trillion by volume each of ethane and ethene were sampled and hydrocarbons were enriched with 100 + or - 4 percent trap efficiency. The multistage design is more efficient than equal-length open-tube traps under the conditions of the measurements.
Ohara, D.↗