Search Results - "Egami, Takeshi"

Local Dynamics in Liquids and Glassy Materials by Egami, Takeshi

“…Atomic dynamics in strongly disordered matter, such as liquids and glasses, is characterized by correlated local dynamics. The conventional descriptions of…”
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Dynamic Correlations in Disordered Systems: Implications for High-Temperature Superconductivity by Egami, Takeshi

“…Liquids and gases are distinct in their extent of dynamic atomic correlations; in gases, atoms are almost uncorrelated, whereas they are strongly correlated in…”
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Local Density Correlations in Liquids by Egami, Takeshi

“…The structure and dynamics of liquids and glasses are usually discussed in terms of the short-range atomic structure and the nature of atomic bonds. However,…”
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How thermally activated deformation starts in metallic glass by Fan, Yue, Iwashita, Takuya, Egami, Takeshi

“…The studies on dynamics and deformation in glassy materials are particularly challenging because of their strongly disordered atomic structure. Here, by…”
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Energy landscape-driven non-equilibrium evolution of inherent structure in disordered material by Fan, Yue, Iwashita, Takuya, Egami, Takeshi

“…Complex states in glasses can be neatly expressed by the potential energy landscape (PEL). However, because PEL is highly multi-dimensional it is difficult to…”
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Severe local lattice distortion in Zr- and/or Hf-containing refractory multi-principal element alloys by Tong, Yang, Zhao, Shijun, Bei, Hongbin, Egami, Takeshi, Zhang, Yanwen, Zhang, Fuxiang

“…Whereas exceptional mechanical and radiation performances have been found in the emergent body-centered cubic (BCC) refractory multi-principal element alloys…”
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Engineering atomic-level complexity in high-entropy and complex concentrated alloys by Oh, Hyun Seok, Kim, Sang Jun, Odbadrakh, Khorgolkhuu, Ryu, Wook Ha, Yoon, Kook Noh, Mu, Sai, Körmann, Fritz, Ikeda, Yuji, Tasan, Cemal Cem, Raabe, Dierk, Egami, Takeshi, Park, Eun Soo

“…Quantitative and well-targeted design of modern alloys is extremely challenging due to their immense compositional space. When considering only 50 elements for…”
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Crossover from Localized to Cascade Relaxations in Metallic Glasses by Fan, Yue, Iwashita, Takuya, Egami, Takeshi

“…Thermally activated deformation is investigated in two metallic glass systems with different cooling histories. By probing the atomic displacements and stress…”
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Atomic-scale dynamics of a model glass-forming metallic liquid: Dynamical crossover, dynamical decoupling, and dynamical clustering by Jaiswal, Abhishek, Egami, Takeshi, Zhang, Yang

“…The phase behavior of multicomponent metallic liquids is exceedingly complex because of the convoluted many-body and many-elemental interactions. Herein, we…”
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Atomic Dynamics in Simple Liquid: de Gennes Narrowing Revisited by Wu, Bin, Iwashita, Takuya, Egami, Takeshi

“…The de Gennes narrowing phenomenon is frequently observed by neutron or x-ray scattering measurements of the dynamics of complex systems, such as liquids,…”
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Ripples in the bottom of the potential energy landscape of metallic glass by Zella, Leo, Moon, Jaeyun, Egami, Takeshi

“…In the absence of periodicity, the structure of glass is ill-defined, and a large number of structural states are found at similar energy levels. However,…”
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The effect of thermal cycling on the fracture toughness of metallic glasses by Ketkaew, Jittisa, Yamada, Rui, Wang, Hui, Kuldinow, Derek, Schroers, Benjamin Sol, Dmowski, Wojciech, Egami, Takeshi, Schroers, Jan

“…A wide range of behaviors, including non-monotonic rejuvenation and relaxation, and the ability to qualitatively change the effect by varying the structural…”
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Stress-temperature scaling for steady-state flow in metallic glasses by Guan, Pengfei, Chen, Mingwei, Egami, Takeshi

“…Through computer simulation of steady-state flow in a Zr50Cu40Al10 metallic glass using a set of realistic potentials we find a simple scaling relationship…”
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In-situ TEM observation of structural changes in nano-crystalline CoCrCuFeNi multicomponent high-entropy alloy (HEA) under fast electron irradiation by high voltage electron microscopy (HVEM) by Nagase, Takeshi, Rack, Philip D., Noh, Joo Hyon, Egami, Takeshi

“…The structural changes induced in a CoCrCuFeNi multicomponent nano-crystalline high-entropy alloy (HEA) under fast electron irradiation were investigated by…”
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Real-Space Description of Dynamics of Liquids by Egami, Takeshi

“…In strongly disordered matter, such as liquids and glasses, atomic and magnetic excitations are heavily damped and partially localized by disorder. Thus, the…”
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Critical Spin Fluctuation Mechanism for the Spin Hall Effect by Okamoto, Satoshi, Egami, Takeshi, Nagaosa, Naoto

“…We propose mechanisms for the spin Hall effect in metallic systems arising from the coupling between conduction electrons and local magnetic moments that are…”
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Origin of medium-range atomic correlation in simple liquids: Density wave theory by Egami, Takeshi, Ryu, Chae Woo

“…The atomic pair-distribution function of simple liquid and glass shows exponentially decaying oscillations beyond the first peak, representing the medium-range…”
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Split-pulse X-ray photon correlation spectroscopy with seeded X-rays from X-ray laser to study atomic-level dynamics by Shinohara, Yuya, Osaka, Taito, Inoue, Ichiro, Iwashita, Takuya, Dmowski, Wojciech, Ryu, Chae Woo, Sarathchandran, Yadu, Egami, Takeshi

“…With their brilliance and temporal structure, X-ray free-electron laser can unveil atomic-scale details of ultrafast phenomena. Recent progress in…”
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Solid state amorphization of metastable Al0.5TiZrPdCuNi high entropy alloy investigated by high voltage electron microscopy by Nagase, Takeshi, Takeuchi, Akira, Amiya, Kenji, Egami, Takeshi

“…The phase stability of high entropy alloy (HEA), Al0.5TiZrPdCuNi, under fast electron irradiation was studied by in-situ high voltage electron microscopy…”
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Correlation between Fragility and the Arrhenius Crossover Phenomenon in Metallic, Molecular, and Network Liquids by Jaiswal, Abhishek, Egami, Takeshi, Kelton, K F, Schweizer, Kenneth S, Zhang, Yang

“…We report the observation of a distinct correlation between the kinetic fragility index m and the reduced Arrhenius crossover temperature θ_{A}=T_{A}/T_{g} in…”
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