The Experts below are selected from a list of 19659 Experts worldwide ranked by ideXlab platform
Ewa Mlynczak - One of the best experts on this subject based on the ideXlab platform.
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spin polarized quantized electronic structure of fe 001 with symmetry breaking due to the Magnetization Direction
Physical Review B, 2021Co-Authors: Ewa Mlynczak, Irene Aguilera, Pika Gospodaric, Tristan Heider, Matteo Jugovac, Giovanni Zamborlini, C Tusche, S SugaAbstract:Quantum well states are responsible for many fundamental phenomena that oscillate with layer thickness, such as magnetic anisotropy or magnetoresistance. Here, the authors present the Magnetization-dependent quantized electronic states of Fe(001), mapped in unprecedented detail using spin-resolved momentum microscopy and high-resolution angle-resolved photoemission. The experimental observations are compared with photoemission simulations, based on the bulk initial electronic band structure, which include quantization of the initial states and broadening of the final states along the wave vector Direction perpendicular to the sample surface.
S Suga - One of the best experts on this subject based on the ideXlab platform.
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spin polarized quantized electronic structure of fe 001 with symmetry breaking due to the Magnetization Direction
Physical Review B, 2021Co-Authors: Ewa Mlynczak, Irene Aguilera, Pika Gospodaric, Tristan Heider, Matteo Jugovac, Giovanni Zamborlini, C Tusche, S SugaAbstract:Quantum well states are responsible for many fundamental phenomena that oscillate with layer thickness, such as magnetic anisotropy or magnetoresistance. Here, the authors present the Magnetization-dependent quantized electronic states of Fe(001), mapped in unprecedented detail using spin-resolved momentum microscopy and high-resolution angle-resolved photoemission. The experimental observations are compared with photoemission simulations, based on the bulk initial electronic band structure, which include quantization of the initial states and broadening of the final states along the wave vector Direction perpendicular to the sample surface.
C Tusche - One of the best experts on this subject based on the ideXlab platform.
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spin polarized quantized electronic structure of fe 001 with symmetry breaking due to the Magnetization Direction
Physical Review B, 2021Co-Authors: Ewa Mlynczak, Irene Aguilera, Pika Gospodaric, Tristan Heider, Matteo Jugovac, Giovanni Zamborlini, C Tusche, S SugaAbstract:Quantum well states are responsible for many fundamental phenomena that oscillate with layer thickness, such as magnetic anisotropy or magnetoresistance. Here, the authors present the Magnetization-dependent quantized electronic states of Fe(001), mapped in unprecedented detail using spin-resolved momentum microscopy and high-resolution angle-resolved photoemission. The experimental observations are compared with photoemission simulations, based on the bulk initial electronic band structure, which include quantization of the initial states and broadening of the final states along the wave vector Direction perpendicular to the sample surface.
Hideo Ohno - One of the best experts on this subject based on the ideXlab platform.
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damping constant in a free layer in nanoscale cofeb mgo magnetic tunnel junctions investigated by homodyne detected ferromagnetic resonance
Applied Physics Express, 2017Co-Authors: Motoya Shinozaki, Hideo Sato, Fumihiro Matsukura, Shun Kanai, Eriko Hirayama, Hideo OhnoAbstract:We investigate the damping constant of a free layer with a perpendicular magnetic easy axis in nanoscale CoFeB/MgO magnetic tunnel junctions (MTJs) with a reference layer with an in-plane easy Direction. The built-in noncollinear Magnetization configuration in the MTJs allows us to measure homodyne-detected ferromagnetic resonance without tilting the Magnetization Direction of the free layer from the device normal. The damping constants determined from the spectral linewidths after the subtraction of the inhomogeneous broadening are nearly independent of the device diameter ranging from 70 to 100 nm, and take values similar to those reported for blanket CoFeB films.
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magnetic anisotropy in ta cofeb mgo investigated by x ray magnetic circular dichroism and first principles calculation
Applied Physics Letters, 2014Co-Authors: Shun Kanai, Yoshio Miura, F Matsukura, Masahito Tsujikawa, Masafumi Shirai, Hideo OhnoAbstract:We study the spin and orbital magnetic moments in Ta/Co0.4Fe0.4B0.2/MgO by x-ray magnetic circular dichroism measurements as well as first-principles calculations, in order to clarify the origin of the perpendicular magnetic anisotropy. Both experimental and theoretical results show that orbital magnetic moment of Fe is more anisotropic than that of Co with respect to the Magnetization Direction. The anisotropy is larger for thinner CoFeB, indicating that Fe atoms at the interface with MgO contribute more than Co to the observed perpendicular magnetic anisotropy.
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Simulation of Magnetization switching by electric-field manipulation of magnetic anisotropy
Applied Physics Letters, 2010Co-Authors: Daichi Chiba, Fumihiro Matsukura, Yoshinobu Nakatani, Hideo OhnoAbstract:Electrical anisotropy modulation was recently observed in ferromagnetic semiconductors and metals. The authors have investigated Magnetization switching through magnetic anisotropy modulation induced by external electric field by means of simulation. Macrospin simulation using Landau–Lifshitz–Gilbert equation shows that switching is possible by controlling magnetic anisotropy for appropriate sets of parameters. The condition for quasistatic Magnetization switching is also presented, in which Magnetization Direction is determined to minimize the magnetic free energy.
Irene Aguilera - One of the best experts on this subject based on the ideXlab platform.
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spin polarized quantized electronic structure of fe 001 with symmetry breaking due to the Magnetization Direction
Physical Review B, 2021Co-Authors: Ewa Mlynczak, Irene Aguilera, Pika Gospodaric, Tristan Heider, Matteo Jugovac, Giovanni Zamborlini, C Tusche, S SugaAbstract:Quantum well states are responsible for many fundamental phenomena that oscillate with layer thickness, such as magnetic anisotropy or magnetoresistance. Here, the authors present the Magnetization-dependent quantized electronic states of Fe(001), mapped in unprecedented detail using spin-resolved momentum microscopy and high-resolution angle-resolved photoemission. The experimental observations are compared with photoemission simulations, based on the bulk initial electronic band structure, which include quantization of the initial states and broadening of the final states along the wave vector Direction perpendicular to the sample surface.