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Journal Articles

Distinct variation of electronic states due to annealing in $$T'$$-type La$$_{1.8}$$Eu$$_{0.2}$$CuO$$_{4}$$ and Nd$$_{2}$$CuO$$_{4}$$

Asano, Shun*; Ishii, Kenji*; Matsumura, Daiju; Tsuji, Takuya; Kudo, Kota*; Taniguchi, Takanori*; Saito, Shin*; Sunohara, Toshiki*; Kawamata, Takayuki*; Koike, Yoji*; et al.

Physical Review B, 104(21), p.214504_1 - 214504_7, 2021/12

https://doi.org/10.1103/PhysRevB.104.214504
 Times Cited Count：1 Percentile：7.22(Materials Science, Multidisciplinary)

Journal Articles

One-dimensional spinon spin currents

Hirobe, Daichi*; Sato, Masahiro*; Kawamata, Takayuki*; Shiomi, Yuki*; Uchida, Kenichi*; Iguchi, Ryo*; Koike, Yoji*; Maekawa, Sadamichi; Saito, Eiji

Nature Physics, 13(1), p.30 - 34, 2017/01

https://doi.org/10.1038/nphys3895
 Times Cited Count：100 Percentile：96.77(Physics, Multidisciplinary)

Journal Articles

Observation of momentum-resolved charge fluctuations proximate to the charge-order phase using resonant inelastic X-ray scattering

Yoshida, Masahiro*; Ishii, Kenji; Naka, Makoto*; Ishihara, Sumio*; Jarrige, I.*; Ikeuchi, Kazuhiko*; Murakami, Yoichi*; Kudo, Kazutaka*; Koike, Yoji*; Nagata, Tomoko*; et al.

Scientific Reports (Internet), 6, p.23611_1 - 23611_8, 2016/03

https://doi.org/10.1038/srep23611
 Times Cited Count：1 Percentile：11.30(Multidisciplinary Sciences)

Journal Articles

Momentum-resolved resonant inelastic X-ray scattering on a single crystal under high pressure

Yoshida, Masahiro*; Ishii, Kenji; Jarrige, I.*; Watanuki, Tetsu; Kudo, Kazutaka*; Koike, Yoji*; Kumagai, Kenichi*; Hiraoka, Nozomu*; Ishii, Hirofumi*; Tsuei, K.-D.*; et al.

Journal of Synchrotron Radiation, 21(1), p.131 - 135, 2014/01

https://doi.org/10.1107/S1600577513028944
 Times Cited Count：3 Percentile：18.87(Instruments & Instrumentation)

Journal Articles

Resonant inelastic X-ray scattering study of intraband charge excitations in hole-doped high-$$T_c$$ cuprates

Wakimoto, Shuichi; Ishii, Kenji; Kimura, Hiroyuki*; Ikeuchi, Kazuhiko*; Yoshida, Masahiro*; Adachi, Tadashi*; Casa, D.*; Fujita, Masaki*; Fukunaga, Yasushi*; Gog, T.*; et al.

Physical Review B, 87(10), p.104511_1 - 104511_7, 2013/03

https://doi.org/10.1103/PhysRevB.87.104511
 Times Cited Count：10 Percentile：43.17(Materials Science, Multidisciplinary)

Journal Articles

Temperature dependence of the electronic structure of Sr$$_{14}$$Cu$$_{24}$$O$$_{41}$$ studied by resonant inelastic X-ray scattering

Yoshida, Masahiro; Ishii, Kenji; Ikeuchi, Kazuhiko*; Jarrige, I.; Murakami, Yoichi*; Mizuki, Junichiro; Tsutsui, Kenji; Toyama, Takami*; Maekawa, Sadamichi*; Kudo, Kazutaka*; et al.

Physica C, 470(Suppl.1), p.S145 - S146, 2010/12

https://doi.org/10.1016/j.physc.2009.11.082
 Times Cited Count：4 Percentile：21.87(Physics, Applied)

Journal Articles

Incommensurate spin correlations induced by magnetic Fe ions substituted into overdoped Bi$$_{1.75}$$Pb$$_{0.35}$$Sr$$_{1.90}$$CuO$$_{6+z}$$

Hiraka, Haruhiro*; Hayashi, Yoichiro*; Wakimoto, Shuichi; Takeda, Masayasu; Kakurai, Kazuhisa; Adachi, Tadashi*; Koike, Yoji*; Yamada, Ikuya*; Miyazaki, Masanori*; Hiraishi, Masatoshi*; et al.

Physical Review B, 81(14), p.144501_1 - 144501_6, 2010/04

https://doi.org/10.1103/PhysRevB.81.144501
 Times Cited Count：15 Percentile：54.84(Materials Science, Multidisciplinary)

Journal Articles

Charge excitations in the stripe-ordered La$$_{5/3}$$Sr$$_{1/3}$$NiO$$_{4}$$ and La$$_{2-x}$$(Ba,Sr)$$_{x}$$CuO$$_{4}$$ superconducting compounds

Wakimoto, Shuichi; Kimura, Hiroyuki*; Ishii, Kenji; Ikeuchi, Kazuhiko; Adachi, Tadashi*; Fujita, Masaki*; Kakurai, Kazuhisa; Koike, Yoji*; Mizuki, Junichiro; Noda, Yukio*; et al.

Physical Review Letters, 102(15), p.157001_1 - 157001_4, 2009/04

https://doi.org/10.1103/PhysRevLett.102.157001
 Times Cited Count：25 Percentile：74.85(Physics, Multidisciplinary)

Journal Articles

$$mu$$SR study of impurity effects on the Cu-spin fluctuations in the overdoped regime of La$$_{2-x}$$Sr$$_x$$Cu$$_{1-y}$$Zn$$_y$$O$$_4$$

Risdiana*; Adachi, Tadashi*; Oki, Naoki*; Yairi, Satoshi*; Tanabe, Yoichi*; Omori, Keisuke*; Suzuki, Takao*; Watanabe, Isao*; Koda, Akihiro*; Higemoto, Wataru; et al.

Physica C, 460-462(2), p.874 - 875, 2007/09

https://doi.org/10.1016/j.physc.2007.03.372
 Times Cited Count：3 Percentile：17.80(Physics, Applied)

Zero-field muon-spin-relaxation measurements have been carried out for La$$_{2-x}$$Sr$$_x$$Cu$$_{1-y}$$Zn$$_y$$O$$_4$$ (LSCO)with $$y$$ = 0-0.10 in the overdoped regime up to $$x$$ = 0.30, in order to investigate whether the dynamical stripe correlations are pinned and stabilized even for the overdoped LSCO or not. It has been found that the Zn-induced slowing down of the Cu-spin fluctuations is weakened with increasing $$x$$ but takes place in the overdoped regime and disappears at $$x$$ = 0.30. This suggests that the stripe-pinning model holds good in the whole superconducting regime of LSCO and that there is no quantum critical point at $$x$$ $$sim$$ 0.19.

Journal Articles

Momentum-dependent charge excitations of a two-leg ladder; Resonant inelastic X-ray scattering of (La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$

Ishii, Kenji; Tsutsui, Kenji*; Toyama, Takami*; Inami, Toshiya; Mizuki, Junichiro; Murakami, Yoichi*; Endo, Yasuo*; Maekawa, Sadamichi*; Kudo, Kazutaka*; Koike, Yoji*; et al.

Physical Review B, 76(4), p.045124_1 - 045124_7, 2007/07

https://doi.org/10.1103/PhysRevB.76.045124
 Times Cited Count：20 Percentile：63.32(Materials Science, Multidisciplinary)

(La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$ is an attractive material in connection with high-$$T_{rm c}$$ superconductivity because Sr$$_{0.4}$$Ca$$_{13.6}$$Cu$$_{24}$$O$$_{41}$$ becomes a superconductor under high pressure without the CuO$$_2$$ planes. We present RIXS at the Cu $$K$$-edge of (La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$ focusing on the momentum dependence of interband excitation across the Mott gap and the intraband excitation below the gap as a function of hole concentration. The experimental results are consistent with the theoretical predictions.

Journal Articles

Effects of hole doping on magnetic ground and excited states in the edge-sharing CuO$$_2$$ chains of Ca$$_{2+x}$$Y$$_{2-x}$$Cu$$_5$$O$$_{10}$$

Matsuda, Masaaki; Kakurai, Kazuhisa; Kurogi, Shogo*; Kudo, Kazutaka*; Koike, Yoji*; Yamaguchi, Hirotaka*; Ito, Toshimitsu*; Oka, Kunihiko*

Physical Review B, 71(10), p.104414_1 - 104414_8, 2005/03

https://doi.org/10.1103/PhysRevB.71.104414
 Times Cited Count：13 Percentile：49.87(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Correlation between superconductivity, electronic state and crystal structure in La$$_{2-y-x}$$Bi$$_{y}$$Ba$$_{x}$$CuO$$_{4}$$

; ; Katano, Susumu; ; ; ;

Physica C, 263(1-4), p.298 - 301, 1996/00

https://doi.org/10.1016/0921-4534(95)00791-1
 Times Cited Count：4 Percentile：29.06(Physics, Applied)

no abstracts in English

Journal Articles

Crystal structure, thermoelectric power and superconductivity in La$$_{1.6-x}$$Nd$$_{0.4}$$Sr$$_{x}$$CuO$$_{4}$$

; ; ; Katano, Susumu; Funahashi, Satoru; ; ; ; ;

Physica B; Condensed Matter, 213-214, p.84 - 86, 1995/00

https://doi.org/10.1016/0921-4526(95)00069-L
 Times Cited Count：9 Percentile：52.10(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Correlation between the rhombic distortion of the CuO$$_{4}$$ basal plane and T$$_{c}$$ in La$$_{1.6-x}$$Nd$$_{0.4}$$Sr$$_{x}$$CuO$$_{4}$$

; ; Katano, Susumu; Funahashi, Satoru; ; ; ; ;

Physica B; Condensed Matter, 194-196, p.1945 - 1946, 1994/00

https://doi.org/10.1016/0921-4526(94)91472-9
 Times Cited Count：6 Percentile：44.46(Physics, Condensed Matter)

no abstracts in English

Journal Articles

Correlation between site preference, superconductivity and magnetism in Pb$$_{2}$$Sr$$_{2}$$Y$$_{1-x}$$Ca$$_{x}$$(Cu$$_{1-y}$$M$$_{y}$$)$$_{3}$$O$$_{8}$$ (M=Fe,Co,Ni,Zn,Ga)

; ; ; ; ; ; ; Morii, Yukio; Funahashi, Satoru;

Physica C, 211, p.409 - 420, 1993/00

https://doi.org/10.1016/0921-4534(93)90148-J
 Times Cited Count：9 Percentile：49.37(Physics, Applied)

no abstracts in English

Oral presentation

Resonant inelastic X-ray scattering of (La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$

Ishii, Kenji; Tsutsui, Kenji*; Toyama, Takami*; Inami, Toshiya; Mizuki, Junichiro; Murakami, Yoichi*; Endo, Yasuo*; Maekawa, Sadamichi*; Kudo, Kazutaka*; Koike, Yoji*; et al.

no journal, , 

(La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$ is an attractive material in connection with high-$$T_{rm c}$$ superconductivity because Sr$$_{0.4}$$Ca$$_{13.6}$$Cu$$_{24}$$O$$_{41}$$ becomes a superconductor under high pressure without the CuO$$_2$$ planes. We present RIXS at the Cu $$K$$-edge of (La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$ focusing on the momentum dependence of interband excitation across the Mott gap and the intraband excitation below the gap as a function of hole concentration. The experimental results are consistent with the theoretical predictions.

Oral presentation

Observation of temperature dependence of charge excitation spectra in Sr$$_{14-x}$$Ca$$_x$$Cu$$_{24}$$O$$_{41}$$ ($$x$$ = 0, 6) by resonant inelastic X-ray scattering

Yoshida, Masahiro; Ishii, Kenji; Jarrige, I.; Ikeuchi, Kazuhiko; Murakami, Yoichi*; Mizuki, Junichiro; Tsutsui, Kenji; Toyama, Takami*; Maekawa, Sadamichi*; Kudo, Kazutaka*; et al.

no journal, , 

no abstracts in English

Oral presentation

Charge excitations in (La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$ studied by resonant inelastic X-ray scattering

Ishii, Kenji; Tsutsui, Kenji*; Toyama, Takami*; Mizuki, Junichiro; Endo, Yasuo; Maekawa, Sadamichi*; Kudo, Kazutaka*; Koike, Yoji*; Kumagai, Kenichi*

no journal, , 

(La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$ is an attractive material in connection with high-$$T_{rm c}$$ superconductivity because Sr$$_{0.4}$$Ca$$_{13.6}$$Cu$$_{24}$$O$$_{41}$$ becomes a superconductor under high pressure without the CuO$$_2$$ planes. We present RIXS at the Cu $$K$$-edge of (La,Sr,Ca)$$_{14}$$Cu$$_{24}$$O$$_{41}$$ focusing on the momentum dependence of interband excitation across the Mott gap and the intraband excitation below the gap as a function of hole concentration. The experimental results are consistent with the theoretical predictions.

Oral presentation

Charge order and charge excitations in Sr$$_{14-x}$$Ca$$_x$$Cu$$_{24}$$O$$_{41}$$ studied by resonant inelastic X-ray scattering

Yoshida, Masahiro; Ishii, Kenji; Jarrige, I.; Ikeuchi, Kazuhiko*; Murakami, Yoichi*; Mizuki, Junichiro; Tsutsui, Kenji; Toyama, Takami*; Maekawa, Sadamichi*; Kudo, Kazutaka*; et al.

no journal, , 

no abstracts in English

Oral presentation

Observation of electronic structure under high pressure by resonant inelastic X-ray scattering

Yoshida, Masahiro; Ishii, Kenji; Jarrige, I.; Mizuki, Junichiro; Murakami, Yoichi*; Kudo, Kazutaka*; Koike, Yoji*

no journal, , 

no abstracts in English

30 (Records 1-20 displayed on this page)