Y. Tokunaga

Multivalued memory effects in electronic phase-change manganites controlled by Joule heating (2006)

Song, H., Tokunaga, M., Imamori, S., Tokunaga, Y., Tamegai, T.

Non-volatile multivalued memory effects caused by magnetic fields, currents, and voltage pulses are studied in Nd_{0.65}Ca_{0.35}MnO_3 and (Nd_{1-y}Sm_{y})_{0.5}Sr_{0.5}MnO_3 (y=0.75) single crystals...

In-plane anisotropy of the electronic structure for the charge/orbital-ordered state in half-doped manganite with layered structure (2006)

Lee, Y. S., Onoda, S., Arima, T., Tokunaga, Y., He, J. P., Kaneko, Y., ...

We report on the in-plane anisotropy of the electronic response in the spin/charge/orbital ordered phase of a half-doped layered-structure manganite. The optical conductivity spectra for a single...

Magnetic state dynamics in itinerant paramagnet UM3B2 (M= Co, Ir) probed by 11B NMR (2006)

Fujimoto, T., Sakai, H., Tokunaga, Y., Kambe, S., Walstedt, R. E., Ikeda, S., ...

We have carried out the $^{11}$B NMR measurement on the itinerant paramagnetic systems U$M_{3}$B$_{2}$ ($M =$ Co, Ir) to investigate the low-dimensional characteristics of the $5f$-electrons due to...

Comment on "Localized behavior near the Zn impurity in YBa2Cu4O8 as measured by nuclear quadrupole resonance" (2005)

Tokunaga, Y., Feher, T., Horvatic, M., Berthier, C.

Williams and Kramer [Phys. Rev. B {\bf 64}, 104506 (2001)] have recently argued against the existence of staggered magnetic moments residing on several lattice sites around Zn impurities in YBCO...

Current oscillation and low-field colossal magnetoresistance effect in phase-separated manganites (2005)

Tokunaga, M., Song, H., Tokunaga, Y., Tamegai, T.

Current-induced switching from metallic to insulating state is observed in phase-separated states of (La_{1-y}Pr_y)_{0.7}Ca_{0.3}MnO_3 (y=0.7) and Nd_{0.5}Ca_{0.5}Mn_{1-z}Cr_zO_3 (z=0.03) crystals....

Anisotropic superconducting gap in transuranium superconductor PuRhGa$_{5}$: Ga NQR study on a single crystal (2005)

Sakai, H., Tokunaga, Y., Fujimoto, T., Kambe, S., Walstedt, R. E., Yasuoka, H., ...

^{69,71}Ga NMR/NQR studies have been performed on a single crystal of the transuranium superconductor PuRhGa_{5} with Tc ~ 9 K. We have observed a ^{69}Ga NQR line at ~29.15 MHz, and assigned it to...

Comment on: "Localized behavior near the Zn impurity in YBa2Cu4O8 as measured by nuclear quadrupole resonance" (2005)

Julien, M. H., Tokunaga, Y., Fehér, T., Horvatić, M., Berthier, C.

Coexistence of Superconductivity and Antiferromagnetism in Multilayered High-$T_c$ Superconductor HgBa$_2$Ca$_4$Cu$_5$O$_y$: A Cu-NMR Study (2004)

Kotegawa, H., Tokunaga, Y., Araki, Y., Kitaoka, Y., Tokiwa, K., ...

We report a coexistence of superconductivity and antiferromagnetism in five-layered compound HgBa$_2$Ca$_4$Cu$_5$O$_y$ (Hg-1245) with $T_c=108$ K, which is composed of two types of CuO$_2$ planes in...

Particle size measurement of standard reference particle candidates with improved size measurement devices (2003)

Yoshida, H, Masuda, H, Fukui, K, Tokunaga, Y, Takarada, K, Sakurai, T, ...

High-magnetic-field NMR studies of LiVGe2O6: A quasi-one-dimensional spin S=1 system (2002)

Vonlanthen, P., Tanaka, K. B., Goto, A., Clark, W. G., Millet, P., Henry, J. Y., ...

We report Li-7 pulsed NMR measurements in polycrystalline and single-crystal samples of the quasi-one-dimensional S=1 antiferromagnet LiVGe2O6, whose AF transition temperature is T(N)similar or equal...

Unpolarizable ground states in the fractional quantum Hall effect at ν=2/3 (2002)

Freytag, N., Tokunaga, Y., Horvatic, M., Berthier, C., Shayegan, M., Lévy, L. P.

Observation of a new phase transition between fully and partially polarized quantum Hall states with charge and spin gaps at $\nu = 2/3$ (2001)

Freytag, N., Tokunaga, Y., Horvatic, M., Berthier, C., Shayegan, M., Levy, L.

The average electron spin-polarization $\cal P$ of two-dimensional electron gas confined in $\rm GaAs/GaAlAs$ multiple quantum-wells was measured by nuclear magnetic resonance (NMR) near the...

Unpolarizable ground states in the fractional quantum Hall effect at ν=2/3 (2001)

Freytag, N., Tokunaga, Y., Horvatić, M., Berthier, C., Shayegan, M., Lévy, L.

New phase transition between partially and fully polarized quantum Hall states with charge and spin gaps at ν=2/3 (2001)

Freytag, N., Tokunaga, Y., Horvatić, M., Berthier, C., Shayegan, M., Lévy, L. P.

NMR evidence for coexistence of superconductivity and ferromagnetic component in magnetic superconductor RuSr2YCu2O8: 99,101Ru and 63Cu NMR (2001)

Tokunaga, Y., Kotegawa, H., Ishida, K., Kitaoka, Y., Takagiwa, H., Akimitsu, J.

Particle size measurement with an improved sedimentation balance method and microscopic method together with computer simulation of necessary sample size (2001)

Yoshida, H, Masuda, H, Fukui, K, Tokunaga, Y

RESISTOMETRIC ANALYSIS OF THE LOW-TEMPERATURE AGING IN MARAGING STAINLESS STEELS. (1998)

TOKUNAGA,Y., ENDO,H.

Sintering Densification Processes in Fe-7^11 mass%Cr Powder Compacts. (1998)

Kamada, M., Kohno, M., Tokunaga, Y.

High chromium steel powder compacts are sintered in single-phase region of austenite (gamma) or ferrite (delta) and two-phase region of ferrite/ austenite (delta/gamma) and sintered compacts are...

Amorphous Oxide Films of the Bi2O3-Fe2O3-PbTiO3 System Coexisting Ferromagnetism and Ferroelectricity Prepared by Gel-Coating (1997)

Fujii, T., Wada, T., Tokunaga, Y., Kawahito, K., Inoue, M., Kajima, A., ...

Magnetic and dielectric properties of films with the ternary oxide system Bi2O3-Fe2O3-PbTiO3 prepared by coating gel-solutions synthesized by the glycol-gel process on either glass plates or low...

Amorphous Oxide Films of the Bi2O3-Fe2O3-PbTiO3 System Coexisting Ferromagnetism and Ferroelectricity Prepared by Gel-Coating (1997)

Fujii, T., Wada, T., Tokunaga, Y., Kawahito, K., Inoue, M., Kajima, A., ...

Magnetic and dielectric properties of films with the ternary oxide system Bi2O3-Fe2O3-PbTiO3 prepared by coating gel-solutions synthesized by the glycol-gel process on either glass plates or low...

Amorphous Oxide Films of the Bi2O3-Fe2O3-PbTiO3 System Coexisting Ferromagnetism and Ferroelectricity Prepared by Gel-Coating (1997)

Fujii, T., Wada, T., Tokunaga, Y., Kawahito, K., Inoue, M., Kajima, A., ...

Magnetic and dielectric properties of films with the ternary oxide system Bi2O3-Fe2O3-PbTiO3 prepared by coating gel-solutions synthesized by the glycol-gel process on either glass plates or low...

MAGNETIC PHASE TRANSITION OF HELICAL CsCuCl3 IN HIGH MAGNETIC FIELD (1988)

Nojiri, H., Tokunaga, Y., Motokawa, M.

Magnetization measurements of CsCuCl3 is performed using pulsed high magnetic fields at various temperatures atures below TN. Magnetization shows a small jump at 12.5 T and saturation at 31 T at 1.1...

MAGNETIC PHASE TRANSITION OF HELICAL CsCuCl3 IN HIGH MAGNETIC FIELD (1988)

Nojiri, H., Tokunaga, Y., Motokawa, M.

Magnetization measurements of CsCuCl3 is performed using pulsed high magnetic fields at various temperatures atures below TN. Magnetization shows a small jump at 12.5 T and saturation at 31 T at 1.1...

MAGNETIC PHASE TRANSITION OF HELICAL CsCuCl3 IN HIGH MAGNETIC FIELD (1988)

Nojiri, H., Tokunaga, Y., Motokawa, M.

Magnetization measurements of CsCuCl3 is performed using pulsed high magnetic fields at various temperatures atures below TN. Magnetization shows a small jump at 12.5 T and saturation at 31 T at 1.1...

Study of low-spin states in $^{7577}$Se populated in slow-neutron capture (1982)

Tokunaga, Y., Seyfarth, H., Schult, O.W.B., Berner, H.G., Barreau, G., Schreckenbach, K., ...

Study of low-spin states in $^{7577}$Se populated in slow-neutron capture (1982)

Tokunaga, Y., Seyfarth, H., Schult, O.W.B., Berner, H.G., Barreau, G., Schreckenbach, K., ...

Untersuchung der Spritznebelverbrennung mit Hilfe einer Schnellkompressionsmaschine (1976)

Ogasawara, M., Horio, K., Nakano, H., Tokunaga, Y., Uruyu, M.

Forschungsarbeit mit dem Ziel, den Verbrennungsvorgang eines intermittierenden Spritznebels im einzelnen zu untersuchen. Zu diesem Zweck wurde eine versuchsweise hergestellte...

Untersuchung der Spritznebelverbrennung mit Hilfe einer Schnellkompressionsmaschine (1976)

Ogasawara, M., Horio, K., Nakano, H., Tokunaga, Y., Uruyu, M.

Forschungsarbeit mit dem Ziel, den Verbrennungsvorgang eines intermittierenden Spritznebels im einzelnen zu untersuchen. Zu diesem Zweck wurde eine versuchsweise hergestellte...

Surgical techniques and innovations in living related liver transplantation.

Tanaka, K, Uemoto, S, Tokunaga, Y, Fujita, S, Sano, K, Nishizawa, T, ...

The authors successfully performed a series of 33 living related liver transplantations (LRLT) on children (15 males and 18 females, ranging from 7 months to 15 years of age) from June 1990 to May...

Surgical techniques and innovations in living related liver transplantation.

Tanaka, K, Uemoto, S, Tokunaga, Y, Fujita, S, Sano, K, Nishizawa, T, ...

The authors successfully performed a series of 33 living related liver transplantations (LRLT) on children (15 males and 18 females, ranging from 7 months to 15 years of age) from June 1990 to May...

Suppression of efferent limb of testicular autoimmune response by a regulatory CD4+ T cell line in mice.

Itoh, M, Mukasa, A, Tokunaga, Y, Hiramine, C, Hojo, K

A murine T cell line (designated as C.Ts) as a mediator of suppression of experimental autoimmune orchitis (EAO) was established. The method of establishment of C.Ts cell line was preparing spleen...