Japan Society for the Promotion of Science

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19922026

most citedWidely-Linear Digital Self-Interference Cancellation in Direct-Conversion Full-Duplex Transceiver

287 citations

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Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing cond-mat.supr-conShow all

7 papers · 1 filter

cond-mat.supr-con2003★ 72 cited

Enhancement of the irreversibility field by carbon substitution in single crystal MgB $_{2}$

E. Ohmichi, T. Masui, S. Lee +2

We report the detailed study of the irreversibility field {\hirr} of single crystals of Mg(B $_{1 - x}$ C $_{x}$ ) $_{2}$ ( $x$ =0, 2, 3.5, 5 and 7%) in strong magnetic fields of up to 40 T.…

cond-mat.supr-con2003★ 233 cited

Carbon-substituted MgB2 single crystals

Sergey Lee, Takahiko Masui, Ayako Yamamoto +2

Carbon-substituted MgB2 single crystals, Mg(B_1-xC_x)_2 of 0.3-1.0 mm size were grown for x=0.02-0.15 by a high-pressure technique. The doping dependence of lattice constants studi…

cond-mat.supr-con2003★ 18 cited

Re-appearance of antiferromagnetic ordering with Zn and Ni substitution in La_{2-x}Sr_xCuO_4

T. Machi, I. Kato, R. Hareyama +5

The effects of nonmagnetic Zn and magnetic Ni substitution for Cu site on magnetism are studied by measurements of uniform magnetic susceptibility for lightly doped La_{2-x}Sr_xCu_…

cond-mat.supr-con2003★ 33 cited

Superconductivity in Sr $_{2}$ RuO $_{4}$ Mediated by Coulomb Scattering

Shigeru Koikegami, Yoshiyuki Yoshida, Takashi Yanagisawa

We investigate the superconductivity in Sr $_{2}$ RuO $_{4}$ on the basis of the three-dimensional three-band Hubbard model. We propose a model with Coulomb interactions among the electro…

cond-mat.supr-con2003★ 46 cited

Zn-Neighbor Cu NQR in Zn-Substituted YBa2Cu3O7-d and YBa2Cu4O8

Y. Itoh, T. Machi, C. Kasai +4

We studied local electronic states near Zn in optimally doped YBa $_{2}$ (Cu $_{1 - x}$ Zn_x) $_{3}$ O $_{7 - δ}$ and underdoped YBa $_{2}$ (Cu $_{1 - x}$ Zn_x) $_{4}$ O $_{8}$ via satellite signals of plane-si…

cond-mat.supr-con2002★ 39 cited

Origin of superconductivity transition broadening in MgB2

T. Masui, S. Lee, S. Tajima

We report resistivity and magnetization of single crystal MgB2, focusing on the broadening of superconducting (SC) transition in magnetic fields. In-plane and out-of-plane resistiv…

cond-mat.supr-con2002

Zn-induced wipeout effect on Cu NQR spectra in La $_{2 - x}$ Sr $_{x}$ Cu $_{1 - y}$ Zn $_{y}$ O $_{4}$

H. Yamagata, H. Miyamoto, K. Nakamura +2

We report a systematic study of Zn-substitution effect on Cu NQR spectrum for high $T_{c}$ superconductors La $_{2 - x}$ Sr $_{x}$ Cu $_{1 - y}$ Zn $_{y}$ O $_{4}$ from carrier-underdoped to -overdoped…

Enhancement of the irreversibility field by carbon substitution in single crystal MgB2​