Search Results - "Konno, J."

The demonstration of significant ferroelectricity in epitaxial Y-doped HfO2 film by Shimizu, Takao, Katayama, Kiliha, Kiguchi, Takanori, Akama, Akihiro, Konno, Toyohiko J., Sakata, Osami, Funakubo, Hiroshi

“…Ferroelectricity and Curie temperature are demonstrated for epitaxial Y-doped HfO 2 film grown on (110) yttrium oxide-stabilized zirconium oxide (YSZ) single…”
Get full text

Impact of mechanical stress on ferroelectricity in (Hf0.5Zr0.5)O2 thin films by Shiraishi, Takahisa, Katayama, Kiliha, Yokouchi, Tatsuhiko, Shimizu, Takao, Oikawa, Takahiro, Sakata, Osami, Uchida, Hiroshi, Imai, Yasuhiko, Kiguchi, Takanori, Konno, Toyohiko J., Funakubo, Hiroshi

“…To investigate the impact of mechanical stress on their ferroelectric properties, polycrystalline (Hf0.5Zr0.5)O2 thin films were deposited on (111)Pt-coated…”
Get full text

Beating Thermal Coarsening in Nanoporous Materials via High‐Entropy Design by Joo, Soo‐Hyun, Bae, Jae Wung, Park, Won‐Young, Shimada, Yusuke, Wada, Takeshi, Kim, Hyoung Seop, Takeuchi, Akira, Konno, Toyohiko J., Kato, Hidemi, Okulov, Ilya V.

“…Controlling the feature sizes of 3D bicontinuous nanoporous (3DNP) materials is essential for their advanced applications in catalysis, sensing, energy…”
Get full text

Ferroelectric and piezoelectric properties of 100 nm-thick CeO2-HfO2 epitaxial films by Shiraishi, Takahisa, Konno, Toyohiko J., Funakubo, Hiroshi

“…Scaling up the film thickness of HfO2-based ferroelectrics is an important factor leading to their potential application in piezoelectric devices. In this…”
Get full text

Extensive study of giant magnetoresistance properties in half-metallic Co2(Fe,Mn)Si-based devices by Sakuraba, Y., Ueda, M., Miura, Y., Sato, K., Bosu, S., Saito, K., Shirai, M., Konno, T. J., Takanashi, K.

“…Fully epitaxial Co2FexMn1−xSi(CFMS)/Ag/Co2FexMn1−xSi current-perpendicular-to-plane giant magnetoresistive devices with various Fe/Mn ratios x and top CFMS…”
Get full text

Growth of (111)-oriented epitaxial and textured ferroelectric Y-doped HfO2 films for downscaled devices by Katayama, Kiliha, Shimizu, Takao, Sakata, Osami, Shiraishi, Takahisa, Nakamura, Syogo, Kiguchi, Takanori, Akama, Akihiro, Konno, Toyohiko J., Uchida, Hiroshi, Funakubo, Hiroshi

“…In this study, the growth of (111)-oriented epitaxial and textured YO1.5-HfO2 (0.07:0.93 ratio) films using the pulsed laser deposition method is presented…”
Get full text

Crystallization behavior and machining properties of annealed Fe–Si–B–Cr amorphous alloys by Kuji, Chieko, Takenaka, Kana, Mizutani, Masayoshi, Shimada, Keita, Kuriyagawa, Tsunemoto, Konno, Toyohiko J.

“…We have systematically prepared diverse microstructures by annealing B-rich Fe–Si–B–Cr amorphous sheets to obtain the optimum mechanical property and cutting…”
Get full text

Crystal structure characterization of martensite of Cu–Zn–Al ternary alloy by spherical aberration corrected scanning transmission electron microscopy by Ikeda, Yuki, Nishijima, Masahiko, Kiguchi, Takanori, Konno, Toyohiko J.

“…The crystal structure of martensite in Cu-27at.%Zn-9.0 at.%Al alloy has been studied by using spherical-aberration-corrected high-angle annular dark-field…”
Get full text

Formation of the orthorhombic phase in CeO2-HfO2 solid solution epitaxial thin films and their ferroelectric properties by Shiraishi, T., Choi, S., Kiguchi, T., Shimizu, T., Funakubo, H., Konno, T. J.

“…The formation of the metastable orthorhombic phase (Pca21) in CeO2-HfO2 solid solution epitaxial thin films has been demonstrated. The films were deposited at…”
Get full text

In Situ TEM Observation and MD Simulation of Frank Partial Dislocation Climbing in Al–Cu Alloy by Chen, Jiao, Yoshida, Kenta, Suzudo, Tomoaki, Shimada, Yusuke, Inoue, Koji, Konno, Toyohiko J., Nagai, Yasuyoshi

“…In situ electron irradiation using high-resolution transmission electron microscopy (HRTEM) was performed to visualize the Frank loop evolution in…”
Get full text

Contribution of oxygen vacancies to the ferroelectric behavior of Hf0.5Zr0.5O2 thin films by Shimizu, Takao, Yokouchi, Tatsuhiko, Oikawa, Takahiro, Shiraishi, Takahisa, Kiguchi, Takanori, Akama, Akihiro, Konno, Toyohiko J., Gruverman, Alexei, Funakubo, Hiroshi

“…The ferroelectric properties of the (Hf0.5Zr0.5)O2 films on Pt/Ti/SiO2/Si substrate are investigated. It is found that the films crystallized by annealing in…”
Get full text

Dependence of photocatalytic activities upon the structures of Au/Pd bimetallic nanoparticles immobilized on TiO2 surface by Mizukoshi, Yoshiteru, Sato, Kazuhisa, Konno, Toyohiko J., Masahashi, Naoya

“…Bimetallic nanoparticles with a Au-core/Pd-shell structure were prepared and successfully immobilized on a TiO2 surface using sonochemical method. When…”
Get full text

The impact of the difference in total diameter of metastatic tumor as a prognostic factor for advanced gastric cancer treated with systemic chemotherapy by Sasaki, Y., Hirota, J., Konno, J.

Get full text

Formation of polar phase in Fe-doped ZrO2 epitaxial thin films by Choi, S., Shiraishi, T., Kiguchi, T., Shimizu, T., Funakubo, H., Konno, T. J.

“…The existence of a polar phase in epitaxially grown Fe-doped ZrO2 thin films has been demonstrated. The films were prepared on yttria-stabilized zirconia…”
Get full text

Structural and electrical characterization of hydrothermally deposited piezoelectric (K,Na)(Nb,Ta)O3 thick films by Shiraishi, Takahisa, Muto, Yuta, Ito, Yoshiharu, Kiguchi, Takanori, Sato, Kazuhisa, Nishijima, Masahiko, Yasuda, Hidehiro, Funakubo, Hiroshi, Konno, Toyohiko J.

“…(K 0.89 Na 0.11 )(Nb 0.85 Ta 0.15 )O 3 thick films were epitaxially grown at 200 °C on (001)La:SrTiO 3 and (001) c SrRuO 3 //(001)SrTiO 3 substrates by…”
Get full text

Formation of (111) orientation-controlled ferroelectric orthorhombic HfO2 thin films from solid phase via annealing by Mimura, Takanori, Katayama, Kiliha, Shimizu, Takao, Uchida, Hiroshi, Kiguchi, Takanori, Akama, Akihiro, Konno, Toyohiko J., Sakata, Osami, Funakubo, Hiroshi

“…0.07YO1.5-0.93HfO2 (YHO7) films were prepared on various substrates by pulse laser deposition at room temperature and subsequent heat treatment to enable a…”
Get full text

Microstructural changes of oxide dispersion strengthened copper powders fabricated by mechanical alloying by Shimada, Yusuke, Mizumoto, Masataka, Hishinuma, Yoshimitsu, Ikeda, Ken-ichi, Yoshida, Kenta, Noto, Hiroyuki, Ma, Bing, Muroga, Takeo, Nagai, Yasuyoshi, Konno, Toyohiko J.

“…•The powders after MA consisted of large- and small-Cu grain layers due to inhomogeneous distribution of yttrium atoms.•Areal fraction of small Cu grain layer…”
Get full text

Good piezoelectricity of self-polarized thick epitaxial (K,Na)NbO3 films grown below the Curie temperature (240 °C) using a hydrothermal method by Tateyama, Akinori, Ito, Yoshiharu, Nakamura, Yoshiko, Shimizu, Takao, Orino, Yuichiro, Kurosawa, Minoru, Uchida, Hiroshi, Shiraishi, Takahisa, Kiguchi, Takanori, Konno, Toyohiko J., Yoshimura, Takeshi, Funakubo, Hiroshi

“…Using a hydrothermal method, (K0.88Na0.12)NbO3 films were deposited at 240 °C on (100) cSrRuO3//(100)SrTiO3 substrates. Moreover, without any poling treatment,…”
Get full text

Structural evolution of epitaxial CeO2-HfO2 thin films using atomic-scale observation: Formation of ferroelectric phase and domain structure by Shiraishi, Takahisa, Choi, Sujin, Kiguchi, Takanori, Konno, Toyohiko J.

“…We investigated the structural evolution of 0.1CeO2–0.9HfO2 epitaxial films upon thermal annealing using X-ray diffraction and scanning transmission electron…”
Get full text

Growth of epitaxial orthorhombic YO1.5-substituted HfO2 thin film by Shimizu, Takao, Katayama, Kiliha, Kiguchi, Takanori, Akama, Akihiro, Konno, Toyohiko J., Funakubo, Hiroshi

“…YO1.5-substituted HfO2 thin films with various substitution amounts were grown on (100) YSZ substrates by the pulsed laser deposition method directly from the…”
Get full text