"Shintaro Yasui,Tsukasa Katayama,Yosuke Hamasaki,MITSURU ITOH","Unique Polarization Switching system in Kappa-Al2O3-type Multiferroics","2022 U.S.-Japan Seminar on Dielectric and Piezoelectric Ceramics",,,,,,2022,Nov.
"Yosuke Hamasaki,Shintaro Yasui,Tsukasa Katayama,Takanori Kiguchi,Shinya Sawai,MITSURU ITOH","Ferroelectric and magnetic properties in ε-Fe2O3 epitaxial film",,,,,,,2021,Nov.
"菊地 泰生,安原 颯,片山司,鶴見 敬章,保科 拓也","(Ba,Sr)-3Al2O6犠牲層を用いたBaTiO3単結晶自立膜の作製","第38回強誘電体会議",,,,,,2021,June
"Yang Zhang,Hui Wang,Koki Tachiyama,Tsukasa Katayama,Yinghao Zhu,Si Wu,Hai- feng Li,Jinghong Fang,Qin Li,Yun Shi,Ling Wang,Zhengqian Fu,Fangfang Xu,Jianding Yu,Shintaro Yasui,Mitsuru Itoh","Single-crystal synthesis of ε-Fe2O3-type oxides exhibiting room- temperature ferrimagnetism and ferroelectric polarization",,"Single-crystal synthesis of ε-Fe2O3-type oxide exhibiting room- temperature ferrimagnetism and ferroelectric polarization","American Chemical Society","Vol. 21","No. 9","pp. 4904-4908",2021,Apr.
"Jun Kasahara,Tsukasa Katayama,Shishin Mo,Akira Chikamatsu,Yosuke Hamasaki,Shintaro Yasui,Mitsuru Itoh,Tetsuya Hasegawa","Room-Temperature Antiferroelectricity in Multiferroic Hexagonal Rare-Earth Ferrites",,"ACS Applied Materials & Interfaces","American Chemical Society","Vol. 129",,"pp. 4230-4235",2021,Jan.
"Hui Wang,Yang Zhang,Koki Tachiyama,Zhaoyang Xia,Jinghong Fang,Qin Li,Guofeng Cheng,Yun Shi,Jianding Yu,Tsukasa Katayama,Shintaro Yasui,Mitsuru Itoh","Large Polarization Switching and High-Temperature Magnetoelectric Coupling in Multiferroic GaFeO3 Systems",,"Inorganic Chemistry",,,,,2020,Dec.
"Ke Gu,Tsukasa Katayama,Shintaro Yasui,Akira Chikamatsu,Sou Yasuhara,Mitsuru Itoh,Tetsuya Hasegawa","A simple method to obtain large-size single-crystalline oxide sheets",,"Advanced Functional Materials","WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",,,,2020,May
"Sou Yasuhara,Yosuke Hamasaki,Tsukasa Katayama,Takahiro Ao,Yoshiyuki Inaguma,Hajime Hojo,Maarit Karppinen,Anish Philip,Shintaro Yasui,Mitsuru Itoh","Modulating the Structure and Magnetic Properties of ε‐Fe2O3 Nanoparticles via Electrochemical Li+ Insertion",,"Inorganic chemistry","American Chemical Society","Vol. 59",,"pp. 4357-4365",2020,Mar.
"Badari Narayana Rao,Shintaro Yasui,Yefei Han,Yosuke Hamasaki,Tsukasa Katayama,Takahisa Shiraishi,Takanori Kiguchi,Mitsuru Itoh","Redox-Based Multilevel Resistive Switching in AlFeO3 Thin-Film Heterostructures",,"ACS Applied Electronic Materials","American Chemical society",,,,2020,Mar.
"Yosuke Hamasaki,Tsukasa Katayama,Shintaro Yasui,Takahisa Shiraishi,Akihiro Akama,Takanori Kiguchi,Tomoyasu Taniyama,Mitsuru Itoh","Switchable third ScFeO3 polar ferromagnet with YMnO3-type structure","J. Mater. Chem. C","Journal of materials chemistry C","Royal Society bios Chemistry","Vol. 8",,"pp. 4447-4452",2020,Feb.
"Badari Narayana Rao,Shintaro Yasui,Tsukasa Katayama,Ayako Taguchi,Hiroki Moriwake,Yosuke Hamasaki,Mitsuru Itoh","Investigation of Ferrimagnetism and Ferroelectricity in AlxFe2-xO3 Thin Films",,"Journal of Materials Chemistry C",,"vol. 8",,"pp. 706-714",2020,Jan.
"Shintaro Yasui,Tsukasa Katayama,Yosuke Hamasaki,Takahisa Shiraishi,Akihiro Akama,Takenori Kiguchi,Ayako Konishi,Hiroki Moriwake,Mitsuru Itoh","Kappa-almina-type Structured Multiferroics","International Conference on Materials and Systems for Sustainability 2019 (ICMaSS 2019)",,,,,,2019,Nov.
"Shintaro Yasui,Tsukasa Katayama,Takuya Osakabe,Yosuke Hamasaki,Tomoyasu Taniyama,Mitsuru Itoh","Ferroelectric and Ferrimagnetic Properties of ε-Rh<sub>x</sub>Fe<sub>2-x</sub>O<sub>3</sub> Thin Films",,"Journal of the Ceramic Society of Japan",,"vol. 127","No. 7","pp. 474-477",2019,June
"Badari Narayana Aroor Rao,Shintaro Yasui,Tsukasa Katayama,Mitsuru Itoh","Fabrication and Characterization of Multiferroic Al<sub>0.5</sub>Fe<sub>1.5</sub>O<sub>3</sub> Epitaxial Thin Films",,"MRS Advances",,"vol. 4",,"pp. 539-544",2019,Feb.
"Koki Tachiyama,Shintaro Yasui,Badari Narayana Aroor Rao,Takuro Dazai,Takamasa Usami,Tomoyasu Taniyama,Tsukasa Katayama,Yosuke Hamasaki,Jianding Yu,Huan He,Hui Wang,Mitsuru Itoh","Magnetic Properties of Single Crystal GaFeO<sub>3</sub>",,"MRS Advances",,"vol. 4",,"pp. 61-66",2019,Jan.
"Minghui Zhang,Shintaro Yasui,Tsukasa Katayama,Badari Narayana Rao,Haiqin Wen,Xiuhong Pan,Meibo Tang,Fei Ai,Mitsuru Itoh","Epitaxial Growth of Orthorhombic GaFeO<sub>3</sub> Thin Films on SrTiO<sub>3</sub> (111) Substrates by Simple Sol-Gel Method",,"Materials",,"vol. 12","No. 2","pp. 254 1-9",2019,Jan.
"Mitsuru Itoh,Shintaro Yasui,Tsukasa Katayama,Hiroki Moriwake,Ayako Konishi,Jianding Yu,Yosuke Hamasaki","Magnetic and Dielectric Properties of Single Crystal GaFeO3","2018 MRS Fall Meeting",,,,,,2018,Nov.
"Badari Narayana Rao,Tsukasa Katayama,Shintaro Yasui,Mitsuru Itoh","Room Temperature Ferroelectricity in Multiferroic AlxFe2-xO3 Epitaxial Thin Films","2018 MRS Fall Meeting",,,,,,2018,Nov.
"Shintaro Yasui,Koki Tachiyama,Tsukasa Katayama,Takuro Dazai,Yosuke Hamasaki,Huan He,Hui Wang,Jianding Yu,Mitsuru Itoh","Preparation of k-Al2O3-Type Ferroelectric Single Crystal and Single Domain Epitaxial Thin Film and Their Properties","2018 MRS Fall Meeting",,,,,,2018,Nov.
"Tsukasa Katayama,Shintaro Yasui,Mitsuru Itoh","Ferrimagnetism and Ferroelectricity in Ga0.5Cr0.5FeO3 Epitaxial Thin Films","2018 MRS Fall Meeting",,,,,,2018,Nov.
"Tsukasa Katayama,Takuya Osakabe,Shintaro Yasui,Yosuke Hamasaki,Badari Narayana Rao,Minghui Zhang,Mitsuru Itoh","Effect of Cr Substitution on Ferrimagnetic and Ferroelectric Properties of GaFeO<sub>3</sub> Epitaxial Thin Films",,"Applied Physics Letters",,"vol. 113",,"pp. 162901 1-4",2018,Oct.
"Badari Narayana Aroor Rao,Tsukasa Katayama,Shintaro Yasui,Mitsuru Itoh","Characterization of Multiferroic Al2Fe2-xO3 Epitaxial Thin Films","12th Japan-Korea Conference on Ferroelectrics (JKC-FE12)",,,,,,2018,Aug.
"K. Tachiyama,T. Katayama,T. Osakabe,T. Dazai,J. Yu,H. He,H. Wang,Y. Hamasaki,S. Yasui,T. Taniyama,M. Itoh","Preparation of GaFeO3 Single Crystal and Epitaxial Thin Films on Single Crystal","2018 ISAF-FMA-AMF- AMEC- PFM Joint Conference (IFAAP 2018)",,,,,,2018,May
"Tsukasa Katayama,Shintaro Yasui,Takuya Osakabe,Yosuke Hamasaki,Mitsuru Itoh","Ferrimagnetism and Ferroelectricity in Cr-Substituted GaFeO<sub>3</sub> Epitaxial Films",,"Chemistry of Materials",,"vol. 30","No. 4","pp. 1436-1441",2018,Mar.
"Tsukasa Katayama,Shintaro Yasui,Yosuke Hamasaki,Takahisa Shiraishi,Akihiro Akama,Takenori Kiguchi,Mitsuru Itoh","Ferroelectric and Magnetic Properties in Room-temperature Multiferroic Ga<sub>x</sub>Fe<sub>2-x</sub>O<sub>3</sub> Epitaxial Thin Films",,"Advanced Functional Materials",,"vol. 28",,"pp. 1704789 1-8",2018,Jan.
"Shintaro Yasui,Tsukasa Katayama,Yosuke Hamasaki,Ayako Konishi,Hiroki Moriwake,Takahisa Shiraishi,Akihiro Akama,Takanori Kiguchi,Mitsuru Itoh","Limited Polarization Reversal in Ferroelectric/ Ferrimagnetic k-Al2O3-type Structured Materials","2017 MRS Fall Meeting",,,,,,2017,Nov.
"Tsukasa Katayama,Shintaro Yasui,Yosuke Hamasaki,Takuya Osakabe,Mitsuru Itoh","Chemical Tuning of Room-temperature Ferrimagnetism and Ferroelectricity in e-Fe<sub>2</sub>O<sub>3</sub>-type Multiferroic Oxide Thin Films",,"Journal of Materials Chemistry C",,"vol. 5",,"pp. 12597-12601",2017,Nov.
"Shintaro Yasui,Tsukasa Katayama,Yosuke Hamasaki,Takahisa Shiraishi,Akihiro Akama,Takanori Kiguchi,Mitsuru Itoh","Multi-Domain Structures in Gallium Ferrite Ferroelectric/Ferrimagnetic Thin Films","International Conference on Materials and Systems for Sustainability (ICMaSS 2017)",,,,,,2017,Sept.
"Tsukasa Katayama,Yosuke Hamasaki,Shintaro Yasui,Akiko Miyahara,Mitsuru Itoh","Epitaxial Thin Film Growth of Garnet-, GdFeO<sub>3</sub>-, and YMnO<sub>3</sub>-type LuFeO<sub>3</sub> using Pulsed Laser Deposition",,"Thin Solid Films",,"vol. 642",,"pp. 41-44",2017,Sept.
"T. Osakabe,Y. Hamasaki,T. Katayama,S. Yasui,T. Taniyama,M. Itoh","Rh Substitution Effect on Ferrimagnetic and Ferroelectric Properties in Multiferroic ε-Fe2O3 Thin Films","The Tenth International Conference on the Science and Technology for Advanced Ceramics (STAC-10)",,,,,,2017,Aug.
"Mitsuru Itoh,Yosuke Hamasaki,Shintaro Yasui,Tsukasa Katayama,Tomoyasu Taniyama,Ayako Konishi,Hiroki Moriwake","Phase Control of Metastable ABO3 Oxides by PLD","Collaborative Conference on Materials Research (CCMR) 2017",,,,,,2017,June
"Tsukasa Katayama,Shintaro Yasui,Yosuke Hamasaki,Mitsuru Itoh","Control of Crystal-Domain Orientation in Multiferroic Ga<sub>0.6</sub>Fe<sub>1.4</sub>O<sub>3</sub> Epitaxial Thin Films",,"Applied Physics Letters",,"vol. 110","No. 21","p. 212905",2017,May
"Tsukasa Katayama,Shintaro Yasui,Yosuke Hamasaki,Mitsuru Itoh","Electric Transport Characteristics of Gallium Iron Oxide Epitaxial Thin Film",,"MRS Advances",,"vol. 2","No. 56","pp. 3459-3464",2017,May
"Shintaro Yasui,Yosuke Hamasaki,Tsukasa Katayama,Takuya Osakabe,Ayako Konishi,Hiroki Moriwake,Mitsuru Itoh","Shear-driven Novel Ferroelectric Materials: k-Al2O3 Type Structure","8th International Conference on Electroceramics (ICE2017)",,,,,,2017,May
"Mitsuru Itoh,Yosuke Hamasaki,Shintaro Yasui,Tsukasa Katayama,Takuya Osakabe,Tomoyasu Taniyama,Ayako Konishi,Hiroki Moriwake","Ferroelectricity and Magnetic Properties in k-Al2O3-type Oxides","8th International Conference on Electroceramics (ICE2017)",,,,,,2017,May
"Y. Kurauchi,H. Kamisaka,T. Katayama,A. Chikamatsu,T. Hasegawa","First-principles calculations on the crystal/electronic structure and phase stability of H-doped SrFeO<sub>2</sub>",,"J. Phys. Chem. C",,"  121",,"  7478",2017,Apr.
"Tsukasa Katayama,Yosuke Hamasaki,Shintaro Yasui,Mitsuru Itoh","Magnetic and Dielectric Properties in Room-Temperature Mutiferroic GaxFe2-xO3 Epitaxial Thin Films","2017 MRS Spring Meeting",,,,,,2017,Apr.
"T. Onozuka,A. Chikamatsu,T. Katayama,Y. Hirose,I. Harayama,D. Sekiba,E. Ikenaga,M. Minohara,H. Kumigashira,T. Hasegawa","Reversible Changes in Resistance of Perovskite Nickelate NdNiO<sub>3</sub> Thin Films Induced by Fluorine Substitution",,"ACS Appl. Mater. Interfaces",,"  9",,"  10882",2017,Apr.
"K. Kawahara,A. Chikamatsu,T. Katayama,T. Onozuka,D. Ogawa,K. Morikawa,E. Ikenaga,Y. Hirose,I. Harayama,D. Sekiba,T. Fukumura,T. Hasegawa","Topotactic fluorination of perovskite strontium ruthenate thin films using polyvinylidene fluoride",,"CrystEngComm",,"vol. 19",,"p. 313",2017,Mar.
"Tsukasa Katayama,A. Chikamatsu,K. Yamada,K. Shigematsu,T. Onozuka,M. Minohara,H. Kumigashira,E. Ikenaga,T. Hasegawa","Epitaxial growth and electronic structure of oxyhydride SrVO<sub>2</sub>H thin films",,"J. Appl. Phys.",,"vol. 120",,"p. 085305",2016,Aug.
"Tsukasa Katayama,Akira Chikamatsu,Keisuke Yamada,Kei Shigematsu,Tomoya Onozuka,Makoto Minohara,Hiroshi Kumigashira,Eiji Ikenaga,Tetsuya Hasegawa","Epitaxial growth and electronic structure of oxyhydride SrVO2H thin films",,,,,,,2016,Aug.
"T. Onozuka,A. Chikamatsu,T. Katayama,T. Fukumura,T. Hasegawa","Formation of defect-fluorite structured NdNiO<sub>x</sub>H<sub>y</sub> epitaxial thin films via soft chemical route from NdNiO<sub>3</sub> precursor",,"Dalton Trans.",,"vol. 45",,"p. 12114",2016,July
"T. Katayama,A. Chikamatsu,T. Fukumura,T. Hasegawa","Topotactic reductive synthesis of A-site cation-ordered perovskite YBaCo<sub>2</sub>O<sub>x</sub> (x = 4.5−5.5) epitaxial thin films",,"Jpn. J. Appl. Phys",,"vol. 55",,"p. 04EJ05",2016,Apr.
"T. Katayama,A. Chikamatsu,H. Kamisaka,H. Kumigashira,T. Hasegawa","Experimental and theoretical investigation of electronic structure of SrFeO<sub>3-x</sub>F<sub>x</sub> epitaxial thin films prepared via topotactic reaction",,"Appl. Phys. Express",,"vol. 9",,"p. 025801",2016,Feb.
"T. Katayama,A. Chikamatsu,H. Kamisaka,Y. Yokoyama,Y. Hirata,H. Wadati,T. Fukumura,T. Hasegawa","Topotactic synthesis of strontium cobalt oxyhydride thin film with perovskite structure",,"AIP Adv.",,"vol. 5",,"p. 107147",2015,Oct.
"Kaori Kurita,Akira Chikamatsu,Kei Shigematsu,Tsukasa Katayama,Hiroshi Kumigashira,Tomoteru Fukumura,Tetsuya Hasegawa","Effects of Cr substitution on the magnetic and transport properties and electronic states of SrRu O 3 epitaxial thin films",,"Phys. Rev. B",,"vol. 92",,"p. 115153",2015,Sept.
"T. Katayama,A. Chikamatsu,Y. Hirose,T. Fukumura,T. Hasegawa","Topotactic reductive fluorination of strontium cobalt oxide epitaxial thin films",,"J. Sol-Gel Sci. Technol.",,"vol. 73",,"p. 527",2015,Mar.
"横山 優一,山本 航平,田久保 耕,平田 靖透,片山 司,近松 彰,長谷川 哲也,和達 大樹","19pDC-8 X線吸収分光で見たコバルト酸水素化物薄膜の電子構造",,"日本物理学会講演概要集","一般社団法人 日本物理学会","Vol. 70","No. 0",,2015,
"T. Katayama,A. Chikamatsu,Y. Hirose,R. Takagi,H. Kamisaka,T. Fukumura,T. Hasegawa","Topotactic fluorination of strontium iron oxide thin films using polyvinylidene fluoride",,"J. Mater. Chem. C",,"vol. 2",,"p. 5350",2014,June
"T. Katayama,A. Chikamatsu,Y Hirose,H. Kumigashira,T. Fukumura,T. Hasegawa","Metallic conductivity in infinite-layer strontium iron oxide thin films reduced by calcium hydride",,"J. Phys. D: Appl. Phys.",,"vol. 47",,"p. 135304",2014,Apr.
"A. Chikamatsu,T. Matsuyama,T. Katayama,Y. Hirose,H. Kumigashira,M. Oshima,T. Fukumura,T. Hasegawa","Electronic and transport properties of Eu-substituted infinite-layer strontium ferrite thin films",,"J. Cryst. Growth",,"vol. 378",,"p. 165",2013,Sept.
"Mitsuru Itoh,Yosuke Hamasaki,Shintaro Yasui,Tsukasa Katayama,Tomoyasu Taniyama,Ayako Konishi,Hiroki Moriwake","Phase Control of Metastable ABO<sub>3</sub> Oxides by PLD","Collaborative Conference on Materials Research (CCMR) 2017",,,,,,,
"伊藤 満,?嵜 容丞,片山司,安井 伸太郎,谷山 智康","k-Al2O3型(A,Fe)2O3 (A=Al, Ga, Fe, Rh, Sc, In)薄膜の磁性と強誘電性","日本化学会第97春季年会",,,,,,,
"片山司,安井 伸太郎,?嵜 容丞,越阪部 拓也,伊藤 満","元素置換サイト設計による室温マルチフェロイックGaFeO3型酸化物薄膜の磁気誘電特性制御","第64回応用物理学会春季学術講演会",,,,,,,
"伊藤 満,?嵜 容丞,片山司,越阪部 拓也,安井 伸太郎,谷山 智康","k-Al2O3型(A,Fe)2O3(A=Al,Ga,Fe,Sc,Rh,In)酸化物の強誘電性と磁性","日本物理学会第72回年次大会",,,,,,,
"越阪部 拓也,?嵜 容丞,片山司,安井 伸太郎,谷山 智康,伊藤 満","マルチフェロイックε-Fe2O3薄膜の磁気誘電特性へのRh置換効果","2017年強的秩序とその操作に関する第4回研究会",,,,,,,
"Mitsuru Itoh,Yosuke Hamasaki,Ayako Konishi,Hiroki Moriwake,Shintaro Yasui,Tsukasa Katayama,Tomoyasu Taniyama","Ferroelectricity and Ferrimagnetism in k-Al2O3-type (A, Fe)O3 (A=Al, Ga, Fe, Sc, and In)","nternational Conference on Technologically Advanced Materials & Asian Meeting on Ferroelectricity (ICTAM-AMF10)",,,,,,,
"片山司,?嵜 容丞,安井 伸太郎,伊藤 満","マルチフェロイックGaxFe2-xO3薄膜の磁気誘電特性","第77回応用物理学会秋季学術講演会",,,,,,,
"Tsukasa Katayama,Yosuke Hamasaki,Shintaro Yasui,Mitsuru Itoh","Magnetic and Dielectric Properties in Room-Temperature Mutiferroic Ga<sub>x</sub>Fe<sub>2-x</sub>O<sub>3</sub> Epitaxial Thin Films","2017 MRS Spring Meeting",,,,,,,
"Mitsuru Itoh,Yosuke Hamasaki,Shintaro Yasui,Tsukasa Katayama,Takuya Osakabe,Tomoyasu Taniyama,Ayako Konishi,Hiroki Moriwake","Ferroelectricity and Magnetic Properties in k-Al2O3-type Oxides","8th International Conference on Electroceramics (ICE2017)",,,,,,,
"Shintaro Yasui,Yosuke Hamasaki,Tsukasa Katayama,Takuya Osakabe,Ayako Konishi,Hiroki Moriwake,Mitsuru Itoh","Shear-driven Novel Ferroelectric Materials: k-Al2O3 Type Structure","8th International Conference on Electroceramics (ICE2017)",,,,,,,
"越阪部 拓也,?嵜 容丞,片山司,安井 伸太郎,谷山 智康,伊藤 満","θ-Fe2O3薄膜の構造と磁気特性へのRh置換効果","第77回応用物理学会秋季学術講演会",,,,,,,