Y. Hashimoto

Publication List Details

Period

1964 - 2008

Number

290

Co-Authors

Coherent manipulation of magnetization precession in ferromagnetic semiconductor (Ga,Mn)As with successive optical pumping (2008)

Hashimoto, Y., Munekata, H.

We report dynamic control of magnetization precession by light alone. A ferromagnetic (Ga,Mn)As epilayer was used for experiments. Amplitude of precession was modulated to a large extent by tuning...

An extreme EXO: a type 2 QSO at z=1.87 (2008)

Del Moro, A., Watson, M. G., Mateos, S., Akiyama, M., Hashimoto, Y., Tamura, N., ...

We aim to understand the multi-wavelength properties of 2XMM J123204+215255, the source with the most extreme X-ray-to-optical flux ratio amongst a sample of bright X-ray selected EXOs drawn from a...

Characteristics of chlorites in seismogenic fault zones: the Taiwan Chelungpu Fault Drilling Project (TCDP) core sample (2008)

Hashimoto, Y., Tadai, O., Tanimizu, M., Tanikawa, W., Hirono, T., Aoike, K., ...

The iron content and the asymmetry of iron and magnesium ions in chlorites are examined for the Chelungpu Fault in Taiwan, which is a seismogenic fault. The samples are collected from the cores...

Characteristics of chlorites in seismogenic fault zones: the Taiwan Chelungpu Fault Drilling Project (TCDP) core sample (2008)

Hashimoto, Y., Tadai, O., Tanimizu, M., Tanikawa, W., Hirono, T., Lin, W., ...

The iron content and the asymmetry of iron and magnesium ions in chlorites are examined for the Chelungpu Fault in Taiwan, which is a seismogenic fault. The samples are collected from the cores...

Characteristics of chlorites in seismogenic fault zones: the Taiwan Chelungpu Fault Drilling Project (TCDP) core sample (2008)

Hashimoto, Y., Tadai, O., Tanimizu, M., Tanikawa, W., Hirono, T., Aoike, K., ...

The iron content and the asymmetry of iron and magnesium ions in chlorites are examined for the Chelungpu Fault in Taiwan, which is a seismogenic fault. The samples are collected from the cores...

Characteristics of chlorites in seismogenic fault zones: the Taiwan Chelungpu Fault Drilling Project (TCDP) core sample (2008)

Hashimoto, Y., Tadai, O., Tanimizu, M., Tanikawa, W., Hirono, T., Lin, W., ...

The iron content and the asymmetry of iron and magnesium ions in chlorites are examined for the Chelungpu Fault in Taiwan, which is a seismogenic fault. The samples are collected from the cores...

Conservation Properties in the Time-Dependent Hartree Fock Theory (2008)

Guo, Lu, Maruhn, J. A., Hashimoto, Y.

We discuss the conservation of angular momentum in nuclear time-dependent Hartree-Fock calculations for a numerical representation of wave functions and potentials on a three-dimensional cartesian...

Unbound excited states in 19,17C (2007)

Satou, Y., Nakamura, T., Fukuda, N., Sugimoto, T., Kondo, Y., Matsui, N., ...

The neutron-rich carbon isotopes 19,17C have been investigated via proton inelastic scattering on a liquid hydrogen target at 70 MeV/nucleon. The invariant mass method in inverse kinematics was...

Dynamic nuclear polarization and Knight shift measurements in a breakdown regime of integer quantum Hall effect (2007)

Kawamura, M., Takahashi, H., Masubuchi, S., Hashimoto, Y., Katsumoto, S., Hamaya, K., ...

Nuclear spins are polarized electrically in a breakdown regime of an odd-integer quantum Hall effect (QHE). Electron excitation to the upper Landau subband with the opposite spin polarity flips...

The XMM-Newton Serendipitous Survey V. Optical identification of the XMM-Newton Medium sensitivity Survey (XMS) (2007)

Barcons, X., Carrera, F. J., Ceballos, M. T., Page, M. J., Bussons-Gordo, J., Corral, A., ...

We present the XMM-Newton Medium sensitivity Survey (XMS), including a total of 318 X-ray sources found among the serendipitous content of 25 XMM-Newton target fields. The XMS comprises four largely...

Adaptive optics imaging and optical spectroscopy of a multiple merger in a luminous infrared galaxy (2007)

Vaisanen, P., Mattila, S., Kniazev, A., Adamo, A., Efstathiou, A., Farrah, D., ...

(abridged) We present near-infrared (NIR) adaptive optics imaging obtained with VLT/NACO and optical spectroscopy from the Southern African Large Telescope (SALT) of a luminous infrared galaxy (LIRG)...

The metallicity extremes of the Sagittarius dSph using SALT spectroscopy of PNe (2007)

Kniazev, A., Zijlstra, A., Grebel, E., Pilyugin, L., Pustilnik, S., Vaisanen, P., ...

In this work we present the first spectroscopic results obtained with the Southern African Large Telescope (SALT) telescope during its perfomance-verification phase. We find that the Sagittarius...

Photo-induced precession of magnetization in ferromagnetic (Ga,Mn)As (2007)

Hashimoto, Y., Munekata, H.

Precession of magnetization induced by pulsed optical excitation is observed in a ferromagnetic semiconductor (Ga,Mn)As by time-resolved magneto-optical measurements. It appears as complicated...

A numerical method of solving time-dependent Hartree-Fock-Bogoliubov equation with Gogny interaction (2007)

Hashimoto, Y., Nodeki, K.

A numerical method to solve time-dependent Hartree-Fock-Bogoliubov equation is proposed to treat the case with Gogny effective interaction. To check the feasibility of the method, it is applied to...

The polar ring galaxy AM1934-563 revisited (2007)

Brosch, N., Kniazev, A., Buckley, D., O'Donoghue, D., Hashimoto, Y., Loaring, N., ...

We report long-slit spectroscopic observations of the dust-lane polar-ring galaxy AM1934-563 obtained with the Southern African Large Telescope (SALT) during its performance-verification phase. The...

Electrical coherent control of nuclear spins in a breakdown regime of quantum Hall effect (2007)

Takahashi, H., Kawamura, M., Masubuchi, S., Hamaya, K., Machida, T., Hashimoto, Y., ...

Using a conventional Hall-bar geometry with a micro-metal strip on top of the surface, we demonstrate an electrical coherent control of nuclear spins in an AlGaAs/GaAs semiconductor heterostructure....

Landau Potential Study of the Chiral Phase Transition in a QCD-Like Theory (2007)

Tsue, Y., Fujii, H., Hashimoto, Y.

We investigate the chiral phase transition of a QCD-like theory, based the shape change of the effective potential near the critical point. The potential is constructed with the auxiliary field...

Anisotropic Decay Dynamics of Photoexcited Aligned Carbon Nanotube Bundles (2006)

Hashimoto, Y., Murakami, Y., Maruyama, S., Kono, J.

We have performed polarization-dependent ultrafast pump-probe spectroscopy of a film of aligned single-walled carbon nanotube bundles. By taking into account imperfect nanotube alignment as well as...

Mixed Representation RPA Calculation for Octupole Excitations on Superdeformed Sates in the 40Ca and Neutron-Rich Sulfur Regions (2005)

Inakura, T., Imagawa, H., Hashimoto, Y., Mizutori, S., Yamagami, M., Matsuyanagi, K.

By means of the mixed representation RPA based on the Skyrme-Hartree-Fock mean field, we investigate low-frequency octupole excitations built on the superdeformed (SD) states in the N=Z nuclei around...

Nuclear collective tunneling transitions between Hartree states deformed in quadrupole symmetry (2005)

Maruyama, M., Kohmura, T., Hashimoto, Y.

In a nucleus which has two Hartree states deformed in quadrupole symmetry, i.e., prolate state and oblate state, the nuclear residual interaction derived in the present theory beyond the Hartree...

Design and investigation of gate-to-gate passive interconnections for SFQ logic circuits (2005)

Hashimoto, Y., Yorozu, S., Kameda, Y., Fujimaki, A., Terai, H., Yoshikawa, Nobuyuki, ...

We have developed a method of designing single-flux-quantum (SFQ) logic circuits with passive gate-to-gate interconnections. Based on our method, we designed a 2 x 2 switch in which all the...

Effective Potential Study of the Chiral Phase Transition in a QCD-like Theory (2005)

Hashimoto, Y., Tsue, Y., Fujii, H.

We construct the effective potential for a QCD-like theory using the auxiliary field method. The chiral phase transition exhibited by the model at finite temperature and the quark chemical potential...

Progress of single flux quantum packet switch technology (2005)

Yorozu, S., Kameda, Y., Hashimoto, Y., Terai, H., Fujimaki, A., Yoshikawa, Nobuyuki, ...

With regard to sustaining future capacity of network traffic, the current hardware technology has a big bottleneck in terms of power consumption and insufficient operation speed. To overcome this...

Demonstration of a single-flux-quantum microprocessor using passive transmission lines (2005)

Tanaka, M., Kondo, T., Nakajima, N., Kawamoto, T., Yamanashi, Y., Kamiya, Y., ...

We have successfully demonstrated an 8-bit microprocessor using passive transmission lines based on single-flux-quantum LSI technology. In the microprocessor designed here, called CORE1 alpha 6, a...

Implementation of a 4 x 4 switch with passive interconnects (2005)

Hashimoto, Y., Yorozu, S., Kameda, Y., Fujimaki, A., Terai, H., Yoshikawa, Nobuyuki, ...

We designed and fabricated a 4 x 4 switch in which all interconnections were implemented using passive transmission lines (PTLs). The switch consisted of four identical 2 x 2 switches connected using...

Propagating Coherent Acoustic Phonon Wavepackets in InMnAs/GaSb (2005)

Wang, J., Hashimoto, Y., Kono, J., Oiwa, A., Munekata, H., Sanders, G. D., ...

We observe pronounced oscillations in the differential reflectivity of a ferromagnetic InMnAs/GaSb heterostructure using two-color pump-probe spectroscopy. Although originally thought to be...

High-speed test of SFQ-shift register files using PTL wiring (2004)

Fujiwara, K., Yamashiro, Y., Yoshikawa, Nobuyuki, Hashimoto, Y., Yorozu, S., Terai, H., ...

We have been developing an SFQ shift register memory, which is one candidate to realize high-throughput and high-density superconductive memories. We have modified our memory architecture in order to...

Photo-induced demagnetization and polaron binding energy increase observed by mid-infrared pump-probe spectroscopy in ferromagnetic Ga$_{0.94}$Mn$_{0.06}$As (2004)

Kojima, E., Heroux, J. B., Shimano, R., Hashimoto, Y., Katsumoto, S., Iye, Y., ...

Time-resolved transmittance measurements performed on Ga$_{0.94}$Mn$_{0.06}$As in the vicinity of the Mn-induced mid-infrared absorption band are presented. Upon photo-excitation, a slow increase...

Ultrahigh-Field Hole Cyclotron Resonance Absorption in InMnAs Films (2004)

Matsuda, Y. H., Khodaparas, G. A., Zudov, M. A., Kono, J., Sun, Y., Kyrychenko, F. V., ...

We have carried out an ultrahigh-field cyclotron resonance study of p-type In1-xMnxAs films, with Mn composition x ranging from 0% to 2.5%, grown on GaAs by low-temperature molecular-beam epitaxy....

Observation of the spin-charge thermal isolation of ferromagnetic Ga_{0.94}Mn_{0.06}As by time-resolved magneto-optical measurement (2002)

Kojima, E., Shimano, R., Hashimoto, Y., Katsumoto, S., Iye, Y., Kuwata-Gonokami, M.

The dynamics of magnetization under femtosecond optical excitation is studied in a ferromagnetic semiconductor Ga_{0.94}Mn_{0.06}As with a time-resolved magneto-optical Kerr effect measurement with...

Improving a Placement Test Battery: What Can Test Analysis Programs Tell Us? (2002)

Toyoda, E, Hashimoto, Y

This paper reports the analyses of a newly introduced placement test battery in the Japanese Program at the University of Melbourne. Focus is placed on the reliability of two innovative tests...

A comparative study of transient characteristics of argon and argon-hydrogen pulse modulated induction thermal plasma (2002)

Hossain, M.M., Hashimoto, Y., Tanaka, Y., Paul, K.C., Sakuta, T.

Solving a time-dependent two-dimensional local thermodynamic equilibrium (LTE) model simulation of Ar and Ar-H2 atmospheric pressure, a high-power RF-induction thermal plasma was performed. The...

Improving a Placement Test Battery: What Can Test Analysis Programs Tell Us? (2002)

Toyoda, E, Hashimoto, Y

This paper reports the analyses of a newly introduced placement test battery in the Japanese Program at the University of Melbourne. Focus is placed on the reliability of two innovative tests...

Experimental Limit to Interstellar 244Pu Abundance (2001)

Paul, M., Valenta, A., Ahmad, I., Berkovits, D., Bordeanu, C., Ghelberg, S., ...

Short-lived nuclides, now extinct in the solar system, are expected to be present in the interstellar medium (ISM). Grains of ISM origin were recently discovered in the inner solar system and at...

Responses of a long-coil pulse-modulated induction plasma (2001)

Paul, K.C., Hossain, M.M., Hashimoto, Y., Tanaka, Y., Sakuta, T.

Radio-frequency inductively coupled plasma in a pulse modulated approach was generated by a MOSFET inverter supply of high electric efficiency. The plasma torch has an extremely long coil region of...

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.

Mating rituals of the Eyelash Viper (2000)

Ishimitsu, U., Hashimoto, Y.

This is where the abstract of this record would appear. This is only demonstration data.