644 citations · 1.1k across the 9 of their papers we have counts for
9 papers
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…
Lattice Softening in Metastable bcc CoxMn100-x(001) Ferromagnetic Layers for a Strain-Less Magnetic Tunnel Junction
Kelvin Elphick, Kenta Yoshida, Tufan Roy +8
In spintronics, one of the long standing questions is why the MgO-based magnetic tunnel junction (MTJ) is almost the only option to achieve a large tunnelling magnetoresistance (TM…
High tunnel magnetoresistance and magnetism in metastable bcc CoMn-based magnetic tunnel junctions
Kazuma Kunimatsu, Tufan Roy, Jun Okabayashi +7
Co-rich CoMn alloys have hcp or fcc disordered phases and those ferromagnetic orderings are significantly deteriorated with increasing Mn concentration in bulk. On…
Magnetic tunnel junctions with a B2-ordered CoFeCrAl equiatomic Heusler alloy
Tomoki Tsuchiya, Tufan Roy, Kelvin Elphick +8
The equiatomic quaternary Heusler alloy CoFeCrAl is a candidate material for spin-gapless semiconductors (SGSs). However, to date, there have been no experimental attempts at fabri…
Spatial Adiabatic Passage of Massive Quantum Particles
Shintaro Taie, Tomohiro Ichinose, Hideki Ozawa +1
By adiabatically manipulating tunneling amplitudes of cold atoms in a periodic potential with a multiple sublattice structure, we are able to coherently transfer atoms from a subla…
Feshbach-Resonance-Enhanced Coherent Atom-Molecule Conversion with Ultra-Narrow Photoassociation Resonance
Shintaro Taie, Shunsuke Watanabe, Tomohiro Ichinose +1
We reveal the existence of high-density Feshbach resonances in the collision between the ground and metastable states of Yb and coherently produce the associated Feshbach m…
Topological Thouless Pumping of Ultracold Fermions
Shuta Nakajima, Takafumi Tomita, Shintaro Taie +5
A gas of electrons in a one-dimensional periodic potential can be transported even in the absence of a voltage bias if the potential is modulated slowly and periodically in time. R…
Coherent driving and freezing of bosonic matter wave in an optical Lieb lattice
Shintaro Taie, Hideki Ozawa, Tomohiro Ichinose +3
While kinetic energy of a massive particle generally has quadratic dependence on its momentum, a flat, dispersionless energy band is realized in crystals with specific lattice stru…