"Takehiro Koike,Hena Das,Kengo Oka,Yoshihiro Kusano,Fernando Cubillas,Francisco B.  Bojorqez,Victor Emmanuel  Alvarez-Montano,Shigekazu Ito,Kei Shigematsu,Hayato  Togano,Ikuya Yamada,Hiroki Ishibashi,Kubota Yoshiki,Shigeo Mori,Noboru  Kimizuka,Masaki Azuma","Pressure-Induced YbFe2O4-Type to Spinel Structural Change of InGaMgO4",,"Solids",,"vol. 5","no. 3","pp. 422-433",2024,Aug.
"Masayuki Fukuda,Ikuya Yamada,Hajime Hojo,Chihiro Takahashi,Yuya Yoshida,Katsuhisa Tanaka,Masaki Azuma,Koji Fujita","Topochemical synthesis of perovskite-type CuNb<sub>2</sub>O<sub>6</sub> with colossal dielectric constant",,"Journal of Materials Chemistry C",,"  9","  39","  1398-13990",2021,Aug.
"Hajime Yamamoto,Kaoru Toda,Yuki Sakai,Takumi Nishikubo,Ikuya Yamada,Kei Shigematsu,Masaki Azuma,Hajime Sagayama,Masaichiro Mizumaki,Kiyofumi Nitta,Hiroyuki Kimura","Emergence of a Cubic Phase Stabilized by Intermetallic Charge Transfer in (1 ? x)PbVO<sub>3</sub>?xBiCoO<sub>3</sub> Solid Solutions",,"CHEMISTRY OF MATERIALS",,"  32","  16","  6892-6897",2020,July
"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.
"Kousuke Nishimura,Ikuya Yamada,Kengo Oka,Yuichi Shimakawa,Masaki Azuma","High-pressure synthesis of BaVO3: A new cubic perovskite",,"JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS",,"Vol. 75","No. 6","pp. 710-712",2014,June
"Ikuya YAMADA,Kentaro  SHIRO,Kengo OKA,Masaki AZUMA,Tetsuo IRIFUNE","Direct observation of negative thermal expansion in SrCu?Fe?O??",,"Journal of the Ceramic Society of Japan",,"Vol. 121","No. 1418","pp. 912-914",2013,Oct.
"Matteo d’Astuto,Ikuya Yamada,Paola Giura,Lorenzo Paulatto,Andrea Gauzzi,Moritz  Hoesch,Michael  Krisch,Masaki Azuma,Mikio Takano","Phonon anomalies and lattice dynamics in the superconducting oxychlorides Ca<sub>2</sub>−<sub>x</sub>CuO<sub>2</sub>Cl<sub>2</sub>",,"PHYSICAL REVIEW B",,"Vol. 88",,"pp. 014522",2013,July
"Yutaka ITOH,Takato MACHI,Ikuya YAMADA,Masaki AZUMA,Mikio TAKANO","Cu NQR and NMR Studies of Optimally Doped Ca<sub>2</sub>-<sub>x</sub>Na<sub>x</sub>CuO<sub>2</sub>Cl<sub>2</sub>",,"Journal of the Physical Society of Japan",,"Vol. 82",,"pp. 055001-1-2",2013,Apr.
"Yutaka ITOH,Takato MACHI,Ikuya YAMADA,Masaki AZUMA,Mikio TAKANO","Cu NQR and NMR Studiesof Optimally Doped Ca<sub>2</sub>xNaxCuO<sub>2</sub>Cl<sub>2</sub>",,"Journal of the Physical Society of Japan",,"Vol. 82","No. 5",,2013,Apr.
"Y. Kumagai,F. Oba,I. Yamada,M. Azuma,I. Tanaka","First-principles study of defect-induced potentials in Ca2CuO2Cl2.",,"Phys. Rev. B",,"Vol. 80",,"pp. 85120-1-85120-9",2009,
"Kohki Satoh,Masatoshi Hiraishi,Masanori Miyazaki,Satoshi Takeshita,Akihiro Koda,R. Kadono,I. Yamada,K. Oka,M. Azuma,Y. Shimakawa,M. Takano","Effect of Zn substitution for Cu on Ca2-xNaxCuO2Cl2 near the hole concentration of 1/8 per Cu.",,"Physica B-Condensed Matter",,"Vol. 404",,"pp. 713-716",2009,
"Mizokawa, T.,Y. Morita,T. Sudayama,K. Takubo,I. Yamada,M. Azuma,M. Takano,Y. Shimakawa","Metallic versus insulating behavior in the A-site ordered perovskite oxides ACu3Co4O12 (A = Ca and Y) controlled by Mott and Zhang-Rice physics.",,"Phys. Rev. B",,"Vol. 80",,"pp. 125105-1-125105-4",2009,
"T. Hanaguri,Y. Kohsaka,M. Ono,M. Maltseva,P. Coleman,I. Yamada,M. Azuma,M. Takano,K. Ohishi,H. Takagi","Coherence Factors in a High-Tc Cuprate Probed by Quasi-Particle Scattering Off Vortices",,"Science",,"Vol. 32",,"pp. 923-926",2009,
"Kengo Oka,Masaki Azuma,Ikuya Yamada,Soshi Takeshita,Kohki Satoh,Akihiro Koda,Ryosuke Kadono,Mikio Takano,Yuichi Shimakawa","Magnetic ground-state of perovskite PbVO3 with large tetragonal distortion",,"Inorganic Chemistry",,"Vol. 47","No. 16","pp. 7355",2008,Aug.
"森田 洋輔,高野 幹夫,須田山 貴亮,田久保 耕,溝川 貴司,山田 幾也,白木 宏,齊藤 高志,東 正樹,島川 祐一","24aPS-78 Aサイトダブルペロブスカイト(Ca,Na)Cu<sub>3V</sub>4O_<12>の光電子分光(24aPS ポスターセッション(低温),領域8(強相関係:高温超伝導,強相関f電子系など))",,"日本物理学会講演概要集","一般社団法人 日本物理学会","Vol. 63","No. 0",,2008,
"I. Yamada,K. Takata,N. Hayashi,Shinohara Satoshi,M. Azuma,Shigeo Mori,S. Muranaka,Y. Shimakawa,M. Takano","A perovskite containing quadrivalent iron as a charge-disproportionated ferrimagnet.",,"Angew. Chem. Int. Ed.",,"Vol. 47",,"pp. 7032-7035",2008,
"T. Hanaguri,Y. Kohsaka,J. C. Davis,C. Lupien,I. Yamada,M. Azuma,M. Takano,K. Ohishi,M. Ono,H. Takagi","Quasi-particle interference and superconducting gap in a high-temperature superconductor Ca2-xNaxCuO2Cl2",,"Nature Physics",,"Vol. 3",,"pp. 865-871",2007,
"T.  Lancaster,S. J. Blundell,P. J. Baker,F. L. Pratt,W. Hayes,I. Yamada,M. Azuma,M. Takano","A muon-spin relaxation study of BiMnO3",,"Journal of Physics-Condensed Matter",,"Vol. 19",,,2007,
"K. Takata,I. Yamada,M. Azuma,M. Takano,Y. Shimakawa","Magnetoresistance and electronic structure of the half-metallic ferrimagnet BiCu3Mn4O12",,"Phys. Rev. B",,"Vol. 76",,"pp. 024429-1-024429-4",2007,
"T. Hanaguri,Y. Kohsaka,J. C. Davis,C. Lupien,I. Yamada,M. Azuma,M. Takano,Kazuki Ooishi,H.  Takagi","Low-energy spectroscopic mapping studies in optimally-doped Ca2-xNaxCuO2Cl2.",,"Physica C",,"Vol. 460",,"pp. 954-955",2007,
"森田 洋輔,須田山 貴亮,田久保 耕,溝川 貴司,山田 幾也,白木 宏,東 正樹,島川 祐一,高野 幹夫","22aWG-7 Aサイトダブルペロブスカイト(Ca,Y)Cu<sub>3Co</sub>4O_<12>の光電子分光(Co酸化物,熱電材料,領域8,強相関係:高温超伝導,強相関f電子系など)",,"日本物理学会講演概要集","一般社団法人 日本物理学会","Vol. 62","No. 0",,2007,
"I. Yamada,M. Azuma,Y. Shimakawa,M. Takano","Single crystal growth of A-site deficient superconductor Ca2-xCuO2Cl2.",,"Physica C",,"Vol. 460",,"pp. 420-421",2007,
"東正樹,齊藤高志,山田幾也,島川祐一,高野幹夫","放射光Ｘ線その場観察に基づく高圧相遷移金属酸化物の単結晶育成",,"放射光",,"Vol. 19","No. 5","pp. 304-313",2006,
"M. Azuma,S. Niitaka,A. Belik,S. Ishiwata,T. Saito,K. Takata,I. Yamada,Y. Shimakawa,M. Takano","Magnetic Ferroelectrics Bi, Pb-3d Transition Metal Perovskites",,"Transactions of Materials Research Society of Japan",,"Vol. 31","No. 1","pp. 41-46",2006,
"Yamada,A.A. Belik,M. Azuma,Harjo S.,T. Kamiyama,Y. Shimakawa,M. Takano","Single-Layer Oxychloride Superconductor Ca2-xCuO2Cl2 with A-Site Cation Deficiency",,"Phys. Rev. B",,"Vol. 72","No. 222","pp. 224503-1-224503-5",2005,
"Kazuki Ooishi,I. Yamada,Akihiro Kohda,Wataru Higemoto,Saha S.R.,R. Kadono,Kojima K.M.,M. Azuma,M. Takano","Magnetic Phase Diagram of Hole-Doped Ca2-xNaxCuO2Cl2 Cuprate Superconductor",,"J. Phys. Soc Jpn",,"Vol. 74","No. 9","pp. 2408-2412",2005,
"東正樹,高田和英,齊藤高志,山田幾也,島川祐一,高野幹夫","機能性酸化物材料探索の新展開",,"高圧力の科学と技術",,"Vol. 15","No. 4","pp. 292-302",2005,
"東正樹,幸坂祐生,山田幾也,Belik Alexei,高木英典,高野幹夫","高圧下での酸化物単結晶育成と新物質探索",,"応用物理",,"Vol. 74","No. 1","pp. 27-31",2005,
"Yamada,M. Azuma,M. Takano","Superconductivity at 38 K in the Single Layer Oxychloride without Cation Substitution",,"Physica C,",,"Vol. 412-414","  Part 1","pp. 27-30",2004,
"M. Azuma,T. Saito,I. Yamada,Y. Kohsaka,H. Takagi,M. Takano","Single Crystal Growth of Ca2-xNaxCuO2Cl2 and Related Compounds at High Pressures of Several GPa",,"Journal of Low Temperature Physics,",,"Vol. 131","No. 3/4","pp. 671-679",2003,
"東正樹,齊藤高志,新高誠司,石渡晋太郎,神田浩周,山田幾也,高野幹夫,内海渉","放射光Ｘ線回折を利用した高圧合成研究",,"固体物理",,"Vol. 38","No. 2","pp. 141-150",2003,
"T Kimura,S Kawamoto,I. Yamada,M. Azuma,M. Takano,Y. Tokura","Magnetocapacitance Effect in Multiferroic BiMnO3",,"Phys. Rev. B,",,"Vol. 67","No. 18","pp. 180401(R)-1-180401(R)-4",2003,
"M. Azuma,T. Saito,S. Ishiwata,I. Yamada,yuhki Kohsaka,H. Takagi,M. Takano","Single Crystal Growth of Transition Metal Oxides at High Pressures of Several GPa",,"Physica C,",,"Vol. 392-396","  Part I","  22-28",2003,