52 citations · 77 across the 6 of their papers we have counts for
6 papers
Cryogenic-temperature Grain-to-grain Epitaxial Growth of High-quality Ultrathin CoFe Layer on MgO Tunnel Barrier for High-performance Magnetic Tunnel Junctions
Tomohiro Ichinose, Tatsuya Yamamoto, Takayuki Nozaki +3
One candidate for ultimate non-volatile memory with ultralow power consumption is magneto-resistive random-access memory (VC-MRAM). To develop VC-MRAM, it is important to fabricate…
Interfacial Fe segregation and its influence on magnetic properties of CoFeB/MgFeO multilayers
Tomohiro Ichinose, Tatsuya Yamamoto, Takayuki Nozaki +3
We investigated the effect of Fe segregated from partially Fe-substituted MgO (MgFeO) on the magnetic properties of CoFeB/MgFeO multilayers. X-ray photoelectron spectroscopy (XPS)…
Cryogenic temperature deposition of high-performance CoFeB/MgO/CoFeB magnetic tunnel junctions on 300 mm wafers
Tomohiro Ichinose, Tatsuya Yamamoto, Takayuki Nozaki +4
We developed a cryogenic temperature deposition process for high-performance CoFeB/MgO/CoFeB magnetic tunnel junctions (MTJs) on 300 mm thermally oxidized silicon wafers. The effec…
Inducing out-of-plane precession of magnetization for microwave assisted magnetic recording using an oscillating polarizer in spin torque oscillator
W. Zhou, H. Sepehri-Amin, T. Taniguchi +5
We investigated the dynamics of a novel design of spin torque oscillator (STO) for microwave assisted magnetic recording. Using NiFe (NiFe) as the polarizer and Fe$_{…
Role of Magnetic Field in Self-Oscillation of Nanomagnet Excited by Spin Torque
Tomohiro Taniguchi, Shingo Tamaru, Hiroko Arai +3
The critical current of the self-oscillation of spin torque oscillator (STO) consisting of a perpendicularly magnetized free layer and an in-plane magnetized pinned layer was studi…
Critical Field of Spin Torque Oscillator with Perpendicularly Magnetized Free Layer
Tomohiro Taniguchi, Hiroko Arai, Sumito Tsunegi +3
The oscillation properties of a spin torque oscillator consisting of a perpendicularly magnetized free layer and an in-plane magnetized pinned layer are studied based on an analysi…