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Journal Articles

O 2$$p$$ hole-assisted electronic processes in the Pr$$_{1-x}$$Sr$$_{x}$$MnO$$_{3}$$ (x=0.0, 0.3) system

Ibrahim, K.*; Qian, H. J.*; Wu, X.*; Abbas, M. I.*; Wang, J. O.*; Hong, C. H.*; Su, R.*; Zhong, J.*; Dong, Y. H.*; Wu, Z. Y.*; et al.

Physical Review B, 70(22), p.224433_1 - 224433_9, 2004/12

https://doi.org/10.1103/PhysRevB.70.224433
 Times Cited Count：31 Percentile：75.89(Materials Science, Multidisciplinary)

no abstracts in English

Journal Articles

Ferromagnetism and giant magnetoresistance in the rare-earth fullerides Eu$$_{6-x}$$Sr$$_x$$C$$_{60}$$

Ishii, Kenji; Fujiwara, Akihiko*; Suematsu, Hiroyoshi*; Kubozono, Yoshihiro*

Physical Review B, 65(13), p.134431_1 - 134431_6, 2002/03

https://doi.org/10.1103/PhysRevB.65.134431
 Times Cited Count：32 Percentile：77.60(Materials Science, Multidisciplinary)

We have studied crystal structure, magnetism and electric transport properties of a europium fulleride Eu$$_6$$C$$_{60}$$ and its Sr-substituted compounds, Eu$$_{6-x}$$Sr$$_x$$C$$_{60}$$. They have a $$bcc$$ structure, which is an isostructure of other $$M_6$$C$$_{60}$$ ($$M$$ represents an alkali atom or an alkaline earth atom). Magnetic measurements revealed that magnetic moment is ascribed to the divalent europium atom with $$S$$ = 7/2 spin, and a ferromagnetic transition was observed at $$T_C$$ = 10 - 14 K. In Eu$$_6$$C$$_{60}$$, we also confirm the ferromagnetic transition by heat capacity measurement. The striking feature in Eu$$_{6-x}$$Sr$$_x$$C$$_{60}$$ is very large negative magnetoresistance at low temperature; the resistivity ratio $$rho$$($$H$$ = 9 T)/$$rho$$($$H$$ = 0 T) reaches almost 10$$^{-3}$$ at 1 K in Eu$$_6$$C$$_{60}$$. Such large magnetoresistance is the manifestation of a strong $$pi$$-$$f$$ interaction between conduction carriers on C$$_{60}$$ and 4$$f$$ electrons of Eu.

Journal Articles

Fermi surface properties of USi$$_{3}$$

Tokiwa, Yoshifumi; Harima, Hisatomo*; Aoki, Dai*; Nogiri, Sayaka*; Murakawa, Masao*; Miyake, Kosaku*; Watanabe, Narumi*; Settai, Rikio*; Inada, Yoshihiko*; Sugawara, Hitoshi*; et al.

Journal of the Physical Society of Japan, 69(4), p.1105 - 1112, 2000/04

https://doi.org/10.1143/JPSJ.69.1105
 Times Cited Count：21 Percentile：71.51(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Low field magnetoresistance effect of plastically deformed n-type silicon

Journal of the Physical Society of Japan, 15(6), p.998 - 1005, 1960/00

https://doi.org/10.1143/JPSJ.15.998
 Times Cited Count：6

no abstracts in English

Oral presentation

Electrical conductivity of antiferromagnetic Dirac quasi-particles

Yamamoto, Kei; Smejkal, L.*; Jungwirth, T.*; Sinova, J.*

no journal, , 

Oral presentation

Spin dependent transport in ferromagnetic high-entropy-alloy thin films

Takanashi, Koki

no journal, , 

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