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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

 Times Cited Count:1 Percentile:0(Materials Science, Multidisciplinary)

Journal Articles

New findings by looking back

Shamoto, Shinichi

Koon Chodendo No Wakaki Samuraitachi; Nihonjin Kenkyusha No Chosen To Funto No Kiroku, p.105 - 121, 2019/12

no abstracts in English

Journal Articles

Ce substitution and reduction annealing effects on electronic states in Pr$$_{2-x}$$Ce$$_x$$CuO$$_4$$ studied by Cu $$K$$-edge X-ray absorption spectroscopy

Asano, Shun*; Ishii, Kenji*; Matsumura, Daiju; Tsuji, Takuya; Ina, Toshiaki*; Suzuki, Kensuke*; Fujita, Masaki*

Journal of the Physical Society of Japan, 87(9), p.094710_1 - 094710_5, 2018/09

 Times Cited Count:13 Percentile:64.96(Physics, Multidisciplinary)

Journal Articles

Reduction and oxidation annealing effects on Cu $$K$$-edge XAFS for electron-doped cuprate superconductors

Asano, Shun*; Suzuki, Kensuke*; Matsumura, Daiju; Ishii, Kenji*; Ina, Toshiaki*; Fujita, Masaki*

Journal of Physics; Conference Series, 969, p.012051_1 - 012051_5, 2018/04

 Times Cited Count:3 Percentile:82.15(Physics, Applied)

Journal Articles

Electronic structure of a half vortex

Machida, Masahiko; Koyama, Tomio*; Kato, Masaru*; Ishida, Takekazu*

Physica C, 412-414(Part 1), p.367 - 371, 2004/10

 Times Cited Count:4 Percentile:25.12(Physics, Applied)

no abstracts in English

Journal Articles

Unified theory for magnetic and electric field coupling in multistacked Josephson junctions

Machida, Masahiko; Sakai, Shigeki*

Physical Review B, 70(14), p.144520_1 - 144520_6, 2004/10

 Times Cited Count:33 Percentile:77.9(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Static spin correlations in lightly-doped La$$_2$$CuO$$_{4+delta}$$

Matsuda, Masaaki; Fujita, Masaki*; Yamada, Kazuyoshi*

Physica C, 408-410, p.810 - 811, 2004/08

 Times Cited Count:0 Percentile:0(Physics, Applied)

Neutron scattering experiments have been performed in lightly-doped La$$_2$$CuO$$_{4+delta}$$ in order to study coexistence of a three-dimensional antiferromagnetic (AF) long-range ordered phase and a spin-glass (SG) phase in a very lightly-doped region. Although we studied in a limited range of hole concentration, where N$'e$el temperature is between 270 K and 320 K, no sign of the SG phase was observed, suggesting that there may exist a threshold to realize the phase separation into the AF and SG phases.

Journal Articles

Localized rotating-modes in capacitively coupled intrinsic Josephson junctions; Systematic study of branching structure and collective dynamical instability

Machida, Masahiko; Koyama, Tomio*

Physical Review B, 70(2), p.024523_1 - 024523_6, 2004/07

 Times Cited Count:64 Percentile:89.38(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Direct numerical simulations for local superconductivity above upper critical field; Theoretical confirmation of stable precursors

Machida, Masahiko; Itakura, Mitsuhiro

Physica C, 392-396(1-4), p.331 - 335, 2003/10

no abstracts in English

Journal Articles

Phase diagram and dynamical matching of Josephson vortices in mesoscopic layered high-Tc superconductors

Machida, Masahiko

Physica C, 388-389, p.679 - 680, 2003/05

 Times Cited Count:0 Percentile:0(Physics, Applied)

no abstracts in English

Journal Articles

Dynamical matching of Josephson vortex lattice with sample edge in layered high-${it Tc}$ superconductors; Origin of the periodic oscillation of flux flow resistance

Machida, Masahiko

Physical Review Letters, 90(3), p.037001_1 - 037001_4, 2003/01

 Times Cited Count:58 Percentile:87.11(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Defect structure of high-T$$_{c}$$ superconductor by high-energy heavy ion irradiation

Sasase, Masato; Okayasu, Satoru; Kurata, Hiroki; Hojo, Kiichi

Journal of Electron Microscopy, 51(Supple), p.S235 - S238, 2002/00

no abstracts in English

Journal Articles

Shapiro step response in the coherent Josephson flux flow state of Bi$$_{2}$$Sr$$_{2}$$CaCu$$_{2}$$O$$_{8+sigma}$$

Latyshev, Y. I.*; Gaifullin, M. B.*; *; Machida, Masahiko; *

Physical Review Letters, 87(24), p.247007_1 - 247007_4, 2001/12

 Times Cited Count:55 Percentile:85.35(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Irradiated damage in high-Tc superconductor

Sasase, Masato; Okayasu, Satoru; Kurata, Hiroki; Hojo, Kiichi

Physica C, 357-360(Part.1), p.497 - 500, 2001/09

no abstracts in English

Journal Articles

Observation of individual vortices trapped along columnar defects in high-temperature superconductors

Tonomura, A.*; Hasai, H.*; Kamimura, O.*; Matsuda, T.*; Harada, K.*; Nakayama, Y.*; Shimoyama, J.*; Kishio, K.*; Hanaguri, T.*; Kitazawa, K.*; et al.

Nature, 412(6847), p.620 - 622, 2001/08

 Times Cited Count:104 Percentile:94.34(Multidisciplinary Sciences)

Direct observation microscopically elucidated the behaviour of vortices in Bi-2212 thin films. The isotropic pinning of vortices by columnar defects at low magnetic fields indirectly inferred by macroscopic magnetization measurements can be explained microscopically as follows; vortex lines are trapped along columns ate temperatures above 19K irrespective of the direction of the applied magnetic field; and at temperatures below 12K vortex lines always penetrate the film perpendicularly to the film plane owing to the increased background pinning compared to the columnar-defect pinning and also because of the demagnetization effect of thin film.

Journal Articles

Neutron scattering studies on lightly-doped La$$_{2-x}$$Sr$$_{x}$$CuO$$_{4}$$

Matsuda, Masaaki; Birgeneau, R. J.*; Endo, Yasuo*; Fujita, Masaki*; Hiraka, Haruhiro*; Kastner, M. A.*; Shirane, Gen*; Wakimoto, Shuichi*; Yamada, Kazuyoshi*

Journal of the Physical Society of Japan, Vol.70, Supplement A, p.46 - 48, 2001/05

no abstracts in English

Journal Articles

Sputtering of high ${it Tc}$ superconductor YBa$$_{2}$$Cu$$_{3}$$O$$_{7-delta}$$ by high energy heavy ions

Matsunami, Noriaki*; Sataka, Masao; Iwase, Akihiro

Nuclear Instruments and Methods in Physics Research B, 175-177, p.56 - 61, 2001/04

 Times Cited Count:8 Percentile:52.36(Instruments & Instrumentation)

no abstracts in English

Journal Articles

Plasma behavior confined on high-Tc superconducting tube

Yamauchi, Toshihiko; Matsuzawa, Hidenori*; Mikami, Koji*; Ishikawa, Junichi*

Proceedings of International Conference on Phenomena in Ionized Gases (25th ICPIG), p.295 - 296, 2001/00

no abstracts in English

Journal Articles

Frequency characteristics of multiple Josephson junctions

Sakamoto, Shoichi*; Matsumoto, Hideki*; Koyama, Tomio*; Machida, Masahiko

Physica B; Condensed Matter, 284-288(Part1), p.612 - 613, 2000/07

 Times Cited Count:0 Percentile:0(Physics, Condensed Matter)

no abstracts in English

49 (Records 1-20 displayed on this page)