"安原颯,?嵜容丞,阿尾貴博,稲熊宜之,北條元,安井伸太郎,伊藤満","ε-Fe2O3ナノ粒子へのLi+挿入とその挿入過程の調査","第67回応用物理学会春季学術講演会",,,,,,2020,Mar.
"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.
"安原颯,?嵜容丞,阿尾貴博,稲熊宜之,北條元,安井伸太郎,伊藤満","ε-Fe2O3ナノ粒子へのLi+挿入とその磁気物性","強的秩序とその操作に関わる第 9 回研究会",,,,,,2019,Sept.
"Keisuke Shimizu,Ryo Kawabe,Hajime Hojo,Haruki Shimizu,Hajime Yamamoto,Marin Katsumata,Kei Shigematsu,Ko Mibu,Yu Kumagai,Fumiyasu Oba,Masaki Azuma","Direct Observation of Magnetization Reversal by Electric Field at Room Temperature in Co-Substituted Bismuth Ferrite Thin Film",,"NANO LETT.",,"Vol. 19","No. 3","pp. 1767?1773",2019,Jan.
"K. Shigematsu,T. Asakura,H. Yamamoto,K. Shimizu,M. Katsumata,H. Shimizu,Y. Sakai,H. Hojo,K. Mibu,M. Azuma","Room temperature ferromagnetism in BiFe1−xMnxO3 thin film  induced by spin-structure manipulation","iLIM-3",,,,,,2018,Sept.
"Hajime Hojo,Kengo Oka,Keisuke Shimizu,Hajime Yamamoto,Ryo Kawabe,Masak Azuma","Development of Bismuth Ferrite as a Piezoelectric and Multiferroic Material by Cobalt Substitution",,"ADVANCED MATERIALS",,"Vol. 30","No. 33","p. 1705665",2018,Aug.
"Kei Shigematsu,Takeshi Asakura,Hajime Yamamoto,Keisuke Shimizu,Marin Katsumata,Haruki Shimizu,Yuki Sakai,Hajime Hojo,Ko Mibu,Masaki Azuma","Room temperature ferromagnetism in BiFe<sub>1</sub><sub>-</sub><sub>x</sub>Mn<sub>x</sub>O<sub>3</sub> thin film induced by spin-structure manipulation",,"Applied Physics Letters.",,"Vol. 112",,"p. 192905",2018,May
"M. Azuma,Y. Sakai,T. Nishikubo,M. Mizumaki,T. Watanuki,T. Mizokawa,K. Oka,H. Hojo,M. Naka","Systematic charge distribution changes in Bi- and Pb-3d transition metal perovskites",,"Dalton Transactions",,"Vol. 47","No. 5","p. 1371-1377",2018,Feb.
"Hirokazu Kyokane,Keisuke Shimizu,Kei Shigematsu,Hajime Hojo,Masaki Azuma","Fabrication of Strain-induced Tetragonal Sr1-xBaxVO3 Thin Film","ISNTE-II",,,,,,2017,Dec.
"小沢陽,馬ノ段月果,沖本洋一,石川忠彦,腰原伸也,清水啓佑,北條元,東正樹","BiFeO3単結晶薄膜の時間分解非線形分光","第27回日本MRS年次学会",,,,,,2017,Dec.
"Haruki Shimizu,Keisuke Shimizu,Hajime Yamamoto,Hajime Hojo,Kei Shigematsu,Masaki Azuma","Stable polarization reversal in third elements substituted  multiferroic BiFe0.9Co0.1O3 thin films","The 9th APCTP Workshop on Multiferroics",,,,,,2017,Nov.
"Keisuke Shimizu,Ryo Kawabe,Hajime Yamamoto,Hajime Hojo,Kei Shigematsu,Masaki Azuma","Direct observation of magnetization reversal by polarization switching in multiferroic Co-substituted BiFeO3 thin film","The 9th APCTP Workshop on Multiferroics",,,,,,2017,Nov.
"L. Zhou,J. H. Dai,Y. S. Chai,H. M. Zhang,S. Dong,H. B. Cao,S. Calder,Y. Y. Yin,X. Wang,X. D. Shen,Z. H. Liu,T. Saito,Y. Shimakawa,H. Hojo,Y. Ikuhara,M. Azuma,Z. W. Hu,Y. Sun,C. Q. Jin,Y. W. Long","Realization of Large Electric Polarization and Strong Magnetoelectric Coupling in BiMn<sub>3</sub>Cr<sub>4</sub>O<sub>12</sub>",,"Advanced Materials",,"Vol. 29","No. 44","p. 1703435",2017,Nov.
"J. Y. Yang,J. H. Dai,Z. H. Liu,R. Z. Yu,H. Hojo,Z. W. Hu,T. W. Pi,Y. Soo,C. Q. Jin,M. Azuma,Y. W. Long","High-Pressure Synthesis of the Cobalt Pyrochlore Oxide Pb<sub>2</sub>Co<sub>2</sub>O<sub>7</sub> with Large Cation Mixed Occupancy",,"Inorganic Chemistry",,"Vol. 56","No. 19","pp. 11676-11680",2017,Oct.
"小沢陽,馬ノ段月果,沖本洋一,石川忠彦,腰原伸也,清水啓佑,北條元,東正樹","BiFeO3単結晶薄膜の時間分解非線形分光","日本物理学会 2017年秋季大会",,,,,,2017,Sept.
"H. Kyokane,K. Shimizu,K. Shigematsu,H. Hojo,M. Azuma","Fabrication of Tetragonal Sr1-xBaxVO3 Thin Film with d1 Configuration","ICMaSS2017",,,,,,2017,Sept.
"清水陽樹,清水啓佑,山本孟,北條元,重松圭,東正樹","マルチフェロイックBiFe0.9Fe0.1O3薄膜への第3元素置換",,,,,,,2017,Sept.
"Yuki Sakai,Junye Yang,Runze Yu,Hajime Hojo,Ikuya Yamada,Ping Miao,Sanghyun Lee,Shuki Torii,Takashi Kamiyama,Marjana Le?ai?,G.Bihlmayer,M. Mizumaki,J.Komiyama,T.Mizokawa,H.Yamamoto,T.Nishikubo,Y.Hattori,K. Oka,Y.Yin,J.Dai,W.Li,S.Ueda,A.Aimi,D.Mori,Y. Inaguma,Z.Hu,T. Uozumi,C.Jin,Y.Long,Masaki Azuma","A-site and B-site charge orderings in an s-d level controlled perovskite oxide PbCoO<sub>3</sub>",,"Journal of the American Chemical Society",,"Vol. 139","No. 12","pp. 4574-4581",2017,Mar.
"H.Hojo,R.Kawabe,K.Shimizu,H. Yamamoto,K.Mibu,K.Samanta,T.Saha-Dasgupta,M.Azuma","Ferromagnetism at Room Temperature Induced by Spin Structure Change in BiFe<sub>1</sub>-<sub>x</sub>Co<sub>x</sub>O<sub>3</sub> Thin Films",,"Advanced materials",,"Vol. 29","No. 9","p. 1603131",2017,Mar.
"浅倉 武志,山本 孟,清水 啓佑,重松 圭,北條 元,壬生 攻,東 正樹","BiFe1-xMn xO3のスピン構造変化","応用物理学会",,,,,,2017,Mar.
"M. Azuma,H. Hojo,R. Kawabe,K. Shimizu,H. Yamamoto,K. Mibu,K. Samanta,T. Saha-Dasgupta","Room temperature ferromagnetism in Co substituted BiFeO<sub>3</sub> induced by spin structure change","Indo-US Bilateral Workshop on Physics and Chemistry of Oxides: Theory meets Experiment",,,,,,2017,Jan.
"浅倉武志,山本孟,清水啓佑,重松圭,北條元,壬生攻,東正樹","BiFe1-xMn xO3のスピン構造変化","第55回セラミックス基礎科学討論会",,,,,,2017,Jan.
"Hajime Hojo,Ryo Kawabe,Keisuke Shimizu,Hajime Yamamoto,Ko Mibu,Kartik Samanta,Tanusri Saha‐Dasgupta,Masaki  Azuma","Ferromagnetism at Room Temperature Induced by Spin Structure Change in BiFe<sub>1</sub>− <sub>x</sub>Co<sub>x</sub>O<sub>3</sub> Thin Films",,"Advanced Materials",,"Vol. 29","No. 9","pp. 1603131-1?1603131-7",2016,Dec.
"Keisuke Shimizu,Hajime Hojo,Yuichi  Ikuhara,Masaki Azuma","Enhanced Piezoelectric Response due to Polarization Rotation in Cobalt‐Substituted BiFeO<sub>3</sub> Epitaxial Thin Films",,"Advanced Materials",,"Vol. 28","No. 39","pp. 8639-8644",2016,Aug.
"Kengo Oka,Hajime Hojo,Masaki Azuma,Katsuyoshi Oh-ishi","Temperature-Independent, Large Dielectric Constant Induced by Vacancy and Partial Anion Order in the Oxyfluoride Pyrochlore Pb<sub>2</sub>Ti<sub>2</sub>O<sub>6</sub>− <sub>δ</sub>F<sub>2</sub><sub>δ</sub>",,"Chemistry of Materials",,"Vol. 28","No. 15","pp. 5554-5559",2016,July
"Runze Yu,Narumi Matsuda,Ken Tominaga,Keisuke Shimizu,Hajime Hojo,Yuki Sakai,Hajime Yamamoto,Kengo Oka,Masaki Azuma","High-Temperature Monoclinic Cc Phase with Reduced c/a Ratio in Bi-based Perovskite Compound Bi<sub>2</sub>ZnTi<sub>1</sub>−<sub>x</sub>Mn<sub>x</sub>O<sub>6</sub>",,"Inorganic Chemistry",,"Vol. 55","No. 12","pp. 6124-6129",2016,June
"成瀬卓,沖本洋一,馬ノ段月果,深谷亮,野澤俊介,腰原伸也,石川忠彦,清水啓佑,北條元,東正樹","BiFe0.5Co0.5O3薄膜結晶における光による電子状態制御","第26回光物性研究会",,,,,,2015,Dec.
"Runze Yu,Hajime Hojo,Tetsu Watanuki,Masaichiro Mizumaki,Takashi Mizokawa,Kengo Oka,Hyunjeong  Kim,Akihiko Machida,Kouji Sakaki,Yumiko Nakamura,Aguin Akane,Daisuke Mori,Yoshiyuki Inaguma,Martin Schlipf,Konstantin  Z. Rushchanskii,Marjana Lezaic,Masaaki Matsuda,Jie Ma,Stuart Calder,Masahiko Isobe,Yuichi Ikuhara,Masaki Azuma","Melting of Pb Charge Glass and Simultaneous Pb−Cr Charge Transfer in PbCrO<sub>3 </sub> as the Origin of Volume Collapse",,"Journal of the American Chemical Society",,"Vol. 137",,"pp. 12719-12728",2015,Sept.
"松田奈瑠美,于 潤澤,北條 元,東 正樹,岡研吾","適度な c/a 比を持つ単斜晶 ヘ?ロフ?スカイトBi<sub>2</sub>ZnTi<sub>1-x</sub>Mn<sub>x</sub>O<sub>6</sub>","強誘電体応用会議",,,,,,2015,May
"RUNZE YU,Hajime Hojo,Teruyasu Mizoguchi,Masaki Azuma","A new LiNbO<sub>3</sub>-type  polar oxide with closed-shell cations: ZnPbO<sub>3</sub>",,"JOURNAL OF APPLIED PHYSICS",,"Vol. 118",,,2015,
"K. Nabetani,Y. Muramatsu,K. Oka,Kiho Nakano,H. Hojo,M. Mizumaki,A. Agui,Y.  Higo,N. Hayashi,M. Takano,M. Azuma","Suppression of temperature hysteresis in negative thermal expansion compound BiNi1− x Fe x O3 and zero-thermal expansion composite",,"APPLIED PHYSICS LETTERS",,"Vol. 106",,"pp. 061912",2015,
"Hajime Hojo,Kou Onuma,Yuichi Ikuhara,Masaki Azuma","Structural evolution and enhanced piezoresponse in cobalt-substituted BiFeO3 thin films",,"APPLIED PHYSICS EXPRESS",,"Vol. 7","No. 9","pp. 091501",2014,Sept.
"Sunseng Pyon,Kazutaka Kudo,Jun-ichi Matsumura,Hiroyuki Ishii,Genta Matsuo,Nohara Minoru,Hojo Hajime,Oka Kengo,Azuma Masaki,Garlea. V.  Ovidiu","Superconductivity in Noncentrosymmetric Iridium Silicide Li2IrSi3",,"JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN",,"Vol. 83","No. 9","pp. 093706",2014,Sept.
"Hajime Hojo,Koji Fujita,Hidekazu Ikeno,Teruyasu Mizoguchi,Isao Tanaka,Tetsuya Nakamura,Yukiharu Takeda,Ttetsuo Okane,Katsuhisa Tanaka","Magnetic structures of FeTiO3-Fe2O3 solid solution thin films studied by soft X-ray magnetic circular dichroism and ab initio multiplet calculations",,"Applied Physics Letters",,"Vol. 104",,"Page 112408",2014,Mar.
"大沼 航,北條 元,幾原 雄一,東 正樹","PLD 法により作製した(1 −x )BiFeO<sub>3</sub> ?xBiCoO<sub>3 </sub>エピタキシャル薄膜の結晶構造および電気特性",,"粉体および粉末冶金",,"Vol. 61","No. 1","pp. 44-49",2014,Jan.
"Hajime Hojo,Ko Onuma,Yuichi Ikuhara,Masaki Azuma","Effect of Oxygen Pressure on Electrical Properties of BiFe<sub>0.9</sub>Co<sub>0.1</sub>O<sub>3</sub> Thin Films Prepared by Pulsed Laser Deposition",,"Japanese Journal of Applied Physics",,"Vol. 52",,"pp. 09KD09-1-3",2013,Sept.
"Feng Bin,Hajime Hojo,Teruyasu Mizoguchi,Hiromichi Ohta,Findlay Scott,Yukio Sato,Naoya Shibata,takahisa Yamamoto,Yuichi Ikuhara","Atomic structure of a Σ3 [110]/(111) grain boundary in CeO2",,"Appl. Phys. Lett.",,"Vol. 100",,"pp. 073109",2012,Feb.
"H. Hojo,E. Tochigi,T. Mizoguchi,H. Ohta,N. Shibata,B. Feng,Y. Ikuhara","Atomic structure and strain field of threading dislocations in CeO2 thin films on yttria-stabilized ZrO2",,"Appl. Phys. Lett.",,"Vol. 98",,"pp. 153104",2011,Mar.
"H. Hojo,T. Mizoguchi,H. Ohta,S.D. Findlay,N. Shibata,T. Yamamoto,Y. Ikuhara","Atomic structure of a CeO2 grain boundary: The role of oxygen vacancies",,"Nano Lett.",,"Vol. 10",,"pp. 4668",2010,Nov.
"H. Hojo,T. Mizoguchi,H. Ohta,N. Shibata,T. Yamamoto,Y. Ikuhara","Atomic Structure and the Oxygen Vacancy Formation in CeO2 [100](210)?5 Grain Boundary",,"AMTC Lett.",,"Vol. 2",,"pp. 44",2010,May
"H. Hojo,K. Fujita,T. Mizoguchi,K. Hirao,I. Tanaka,K. Tanaka,Y. Ikuhara","Magnetic properties of ilmenite-hematite solid-solution thin films: Direct observation of antiphase boundaries and their correlation with magnetism",,"Phys. Rev. B",,"Vol. 80",,"pp. 075414",2009,Aug.
"K. Fujita,K. Tanaka,K. Hirao,K. Tanaka,K. Fujita,S. Nakashima,H. Hojo,T. Matobao","Magnetic properties of disordered ferrite and ilmenite-hematite thin films",,"J. Magn. Magn. Mater.",,"Vol. 321",,"pp. 818",2009,Apr.
"H. Hojo","Development of ferromagnetic oxide semiconductor thin films for spin electronics applications",,,,,,,2008,Mar.
"H. Hojo,K. Fujita,K. Tanaka,K. Hirao","Fabrication of p-type ferrimagnetic semiconductor thin films based on FeTiO3-Fe2O3 solid solution",,"J. Magn. Magn. Mater.",,"Vol. 321",,"pp. 818",2007,Mar.
"H. Hojo,K. Fujita,K. Tanaka,K. Hirao","Room-temperature ferrimagnetic semiconductor 0.6FeTiO3-0.4Fe2O3 solid solution thin films",,"Appl. Phys. Lett.",,"Vol. 89",,"pp. 142503",2006,Oct.
"H. Hojo,K. Fujita,K. Tanaka,K. Hirao","Epitaxial growth of room-temperature ferrimagnetic semiconductor thin films based on the ilmenite-hematite solid solution",,"Appl. Phys. Lett.",,"Vol. 89",,"pp. 082509",2006,Aug.