Y. Ando

Publication List Details

Period

1991 - 2008

Number

92

Co-Authors

Epitaxial ferromagnetic Fe$_{3}$Si/Si(111) structures with high-quality hetero-interfaces (2008)

Hamaya, K., Ueda, K., Kishi, Y., Ando, Y., Sadoh, T., Miyao, M.

To develop silicon-based spintronic devices, we have explored high-quality ferromagnetic Fe$_{3}$Si/silicon (Si) structures. Using low-temperature molecular beam epitaxy at 130 $^circ$C, we realize...

Determination of exchange constants of Heusler compounds by Brillouin light scattering spectroscopy: application to Co$_2$MnSi (2008)

Hamrle, J., Gaier, O., Min, Seong-Gi, Hillebrands, B., Sakuraba, Y., Ando, Y.

Brillouin light scattering spectroscopy from so-called standing spin waves in thin magnetic films is often used to determine the magnetic exchange constant. The data analysis of the experimentally...

Improvement of structural, electronic, and magnetic properties of Co$_2$MnSi thin films by He$^+$-irradiation (2008)

Gaier, O., Hamrle, J., Hillebrands, B., Kallmayer, M., Pörsch, P., Schönhense, G., ...

The influence of 30 keV He$^+$ ion irradiation on structural, electronic and magnetic properties of Co$_2$MnSi thin films with B2 order was investigated. It was found, that irradiation with light...

Model modifications in Schumann resonance intensity caused by a localized ionosphere disturbance over the earthquake epicenter (2008)

Nickolaenko, A. P., Hayakawa, M., Sekiguchi, M., Ando, Y., Ohta, K.

This paper is a further extension of our latest observations and modeling by Hayakawa et al. (2005a), in which we discovered the anomalous behavior of Schumann resonance observed in Japan, in...

Anomalous effect in Schumann resonance phenomena observed in Japan, possibly associated with the Chi-chi earthquake in Taiwan (2008)

Hayakawa, M., Ohta, K., Nickolaenko, A. P., Ando, Y.

The Schumann resonance phenomenon has been monitored at Nakatsugawa (near Nagoya) in Japan since the beginning of 1999, and due to the occurance of a severe earthquake (so-called Chi-chi earthquake)...

Model modifications in Schumann resonance intensity caused by a localized ionosphere disturbance over the earthquake epicenter (2008)

Nickolaenko, A. P., Hayakawa, M., Sekiguchi, M., Ando, Y., Ohta, K.

This paper is a further extension of our latest observations and modeling by Hayakawa et al. (2005a), in which we discovered the anomalous behavior of Schumann resonance observed in Japan, in...

Anomalous effect in Schumann resonance phenomena observed in Japan, possibly associated with the Chi-chi earthquake in Taiwan (2008)

Hayakawa, M., Ohta, K., Nickolaenko, A. P., Ando, Y.

The Schumann resonance phenomenon has been monitored at Nakatsugawa (near Nagoya) in Japan since the beginning of 1999, and due to the occurance of a severe earthquake (so-called Chi-chi earthquake)...

Doping dependence of phonon and quasiparticle heat transport of pure and Dy-doped Bi_2Sr_2CaCu_2O_{8+\delta} single crystals (2008)

Sun, X. F., Ono, S., Zhao, X., Pang, Z. Q., Abe, Y., Ando, Y.

The temperature and magnetic-field (H) dependences of thermal conductivity (\kappa) of Bi_2Sr_2CaCu_2O_{8+\delta} (Bi2212) are systematically measured for a broad doping range by using both pure...

Inhomogeneous Magnetic-Field Response of YBa2Cu3Oy and La2-xSrxCuO4 Persisting above the Bulk Superconducting Transition Temperature (2008)

Sonier, J. E., Ilton, M., Pacradouni, V., Kaiser, C. V., Sabok-Sayr, S. A., Ando, Y., ...

We report that in YBa2Cu3Oy and La2-xSrxCuO4 there is a spatially inhomogeneous response to magnetic field for temperatures T extending well above the bulk superconducting transition temperature Tc....

Non-quasiparticle states in Co$_2$MnSi evidenced through magnetic tunnel junction spectroscopy measurements (2007)

Chioncel, L., Sakuraba, Y., Arrigoni, E., Katsnelson, M. I., Oogane, M., Ando, Y., ...

We investigate the effects of electronic correlations in the full-Heusler Co$_2$MnSi, by combining a theoretical analysis of the spin-resolved density of states with tunneling-conductance...

Influence of the L21 ordering degree on the magnetic properties in Co2MnSi Heusler films (2007)

Gaier, O., Hamrle, J., Hermsdoerfer, S. J., Hillebrands, B., Sakuraba, Y., Oogane, M., ...

We report on the influence of the improved L21 ordering degree on the magnetic properties of Co2MnSi Heusler films. Different fractions of the L21 phase are obtained by different post-growth...

Spin-glass state of vortices in YBa2Cu3Oy and La2-xSrxCuO4 below the metal-to-insulator crossover (2007)

Sonier, J. E., Callaghan, F. D., Ando, Y., Kiefl, R. F., Brewer, J. H., Kaiser, C. V., ...

Highly disordered magnetism confined to individual weakly interacting vortices is detected by muon spin rotation in two different families of high-transition-temperature superconductors, but only in...

The hierarchy of multiple many-body interaction scales in high-temperature superconductors (2006)

Meevasana, W., Zhou, X. J., Sahrakorpi, S., Lee, W. S., Yang, W. L., Tanaka, K., ...

To date, angle-resolved photoemission spectroscopy has been successful in identifying energy scales of the many-body interactions in correlated materials, focused on binding energies of up to a few...

Manifestation of the magnetic resonance mode in the nodal quasiparticle lifetime of the superconducting cuprates (2006)

Kordyuk, A. A., Borisenko, S. V., Koitzsch, A., Fink, J., Knupfer, M., Buchner, B., ...

Studying the nodal quasiparticles in superconducting cuprates by photoemission with highly improved momentum resolution, we show that a new "kink" feature in the scattering rate is a key to uncover...

Avoided Quantum Criticality in YBa_2Cu_3O_y and La_{2-x}Sr_xCuO_4 (2006)

Sonier, J. E., Callaghan, F. D., Ando, Y., Kiefl, R. F., Brewer, J. H., Kaiser, C. V., ...

Spin-glass magnetism confined to individual weakly interacting vortices is detected in two different families of high-transition-temperature (T_c) superconductors, but only in samples on the...

Constituents of the Quasiparticle Spectrum Along the Nodal Direction of High-Tc Cuprates (2006)

Kordyuk, A. A., Borisenko, S. V., Zabolotnyy, V. B., Geck, J., Knupfer, M., Fink, J., ...

Applying the Kramers-Kronig consistent procedure, developed earlier, we investigate in detail the formation of the quasiparticle spectrum along the nodal direction of high-Tc cuprates. The heavily...

Constituents of the Quasiparticle Spectrum Along the Nodal Direction of High-Tc Cuprates (2006)

Kordyuk, A. A., Borisenko, S. V., Zabolotnyy, V. B., Geck, J., Knupfer, M., Fink, J., ...

Applying the Kramers-Kronig consistent procedure, developed earlier, we investigate in detail the formation of the quasiparticle spectrum along the nodal direction of high-Tc cuprates. The heavily...

Crystal structure and high-field magnetism of La2CuO4 (2006)

Reehuis, M., Ulrich, C., Prokeš, K., Gozar, A., Blumberg, G., Komiya, S., ...

Neutron diffraction was used to determine the crystal structure and magnetic ordering pattern of a La2CuO4 single crystal, with and without applied magnetic field. A previously unreported, subtle...

Constituents of the Quasiparticle Spectrum Along the Nodal Direction of High-Tc Cuprates (2006)

Kordyuk, A. A., Borisenko, S. V., Zabolotnyy, V. B., Geck, J., Knupfer, M., Fink, J., ...

Applying the Kramers-Kronig consistent procedure, developed earlier, we investigate in detail the formation of the quasiparticle spectrum along the nodal direction of high-Tc cuprates. The heavily...

Origin of the shadow Fermi surface in Bi-based cuprates (2004)

Koitzsch, A., Borisenko, S. V., Kordyuk, A. A., Kim, T. K., Knupfer, M., Fink, J., ...

We used angle-resolved photoemission spectroscopy to study the shadow Fermi surface in one layer Bi2Sr1.6La0.4CuO6+delta and two layer (Bi,Pb)2Sr2CaCu2O8+delta. We find the shadow band to have the...

Manifestation of the Magnetic Resonance Mode in the Nodal Quasiparticle Lifetime of the Superconducting Cuprates (2004)

Kordyuk, A. A., Borisenko, S. V., Koitzsch, A., Fink, J., Knupfer, M., Büchner, B., ...

Studying the nodal quasiparticles in superconducting cuprates by photoemission with highly improved momentum resolution, we show that a new "kink" feature in the scattering rate is a key to uncover...

Origin of the shadow Fermi surface in Bi-based cuprates (2004)

Koitzsch, A., Borisenko, S. V., Kordyuk, A. A., Kim, T. K., Knupfer, M., Fink, J., ...

We used angle-resolved photoemission spectroscopy to study the shadow Fermi surface in one layer Bi2Sr1.6La0.4CuO6+delta and two layer (Bi,Pb)(2)Sr2CaCu2O8+delta. We find the shadow band to have the...

Smallest carbon nanotube is 3 A in diameter (2004)

Zhao, X., Liu, Y., Inoue, S., Suzuki, T., Jones, G. J., Ando, Y.

This version is available at the following Publisher URL: http://prl.aps.org

Origin of the shadow Fermi surface in Bi-based cuprates. (2004)

Koitzsch, A., Borisenko, S.V., Kordyuk, A.A., Kim, T.K., Knupfer, M., Fink, J., ...

We used angle-resolved photoemission spectroscopy to study the shadow Fermi surface in one layer Bi2Sr1.6La0.4CuO6 + delta and two layer (Bi,Pb)2Sr2CaCu2O8 + delta. We find the shadow band to have...

Inhomogeneous CuO6 tilt distribution and charge-spin correlations in La2-x-yNdySrxCuO4 around the commensurate hole concentration (2003)

Gozar, A, Dennis, B.S., Siegrist, T, Horibe, Y, Blumberg, G, Komiya, S, ...

Phononic and magnetic Raman scattering are studied in La2-x-yNdySrxCuO4 with three doping concentrations: x1/8, y = 0; x1/8, y = 0.4; and x = 0.01, y = 0. We observe strong disorder in the tilt...

Carbon species confined inside carbon nanotubes: a density functional study (2003)

Liu, Y., Jones, G. J., Zhao, X., Ando, Y.

This version is available at the following Publisher URL: http://prb.aps.org

The CD1d natural killer T-cell antigen presentation pathway is highly conserved between humans and rhesus macaques (2003)

Kashiwase, K, Kikuchi, A, Ando, Y, Nicol, A, Porcelli, SA, Tokunaga, K, ...

Natural killer T (NKT) cells play an important role in controlling cancers, infectious diseases and autoimmune diseases. Although the rhesus macaque is a useful primate model for many human diseases...

Liver transplantation as a therapeutic option for hepatocellular carcinoma (2002)

Matsunami, H, Shimizu, Y, Lynch, SV, Balderson, GA, Ando, Y, Strong, RW

Better outcomes of the patients receiving liver transplantation for viral hepatitis and hepatocellular carcinoma (HCC) are achieved by improved patient selection and perioperative treatment with...

High-yield synthesis of single-walled carbon nanotubes by gravity-free arc discharge (2001)

Kanai, M., Koshio, A., Shinohara, H., Mieno, T., Kasuya, A., Ando, Y., ...

Single-walled carbon nanotubes (SWNTs) have been produced in high yield by the dc arc discharge technique under gravity-free conditions. Gravity-free conditions can reduce the convection flow of the...

Scanning tunneling spectroscopy of Bi2Sr2CuO6+δ: new evidence for the common origin of the pseudogap and superconductivity (2001)

Kugler, M., Fischer, O., Renner, C., Ono, S., Ando, Y.

Using scanning tunneling spectroscopy, we investigated the temperature dependence of the quasiparticle density of states of overdoped Bi2Sr2CuO6+δ between 275 mK and 82 K. Below Tc = 10 K, the...

Dynamics vs electronic states of vortex core of high-T_c superconductors investigated by high-frequency impedance measurement (2001)

Maeda, A., Tsuchiya, Y., Iwaya, K., Kinoshita, K., Hanaguri, T., Kitano, H., ...

Dynamics of vortices reflects the electronic states of quasiparticles in the core. To understand this, we investigated the following three issues. (1) We investigated the complex surface impedance,...

Angiotensin-converting enzyme inhibition attenuates the progression of rat hepatic fibrosis (2001)

Jonsson, JR, Clouston, AD, Ando, Y, Kelemen, LI, Horn, MJ, Adamson, MD, ...

Background & Aims: There is a significant relationship between inheritance of high transforming growth factor (TGF)-beta1 and angiotensinogen-producing genotypes and the development of progressive...

Dendritic cells rapidly undergo apoptosis in vitro following culture with activated CD4(+) V alpha 24 natural killer T cells expressing CD40L (2001)

Nieda, M, Kikuchi, A, Nicol, A, Koezuka, Y, Ando, Y, Ishihara, S, ...

Human V alpha 24 natural killer T (V alpha 24NKT) cells are activated by -glycosylceramide-pulsed dendritic cells (DCs) in a CDld-dependent and T-cell receptor-mediated manner. There are two major...

Gene expression analysis in human monocytes, monocyte-derived dendritic cells, and alpha-galactosylceramide-pulsed monocyte-derived dendritic cells (2001)

Lapteva, N, Nieda, M, Ando, Y, Nicol, A, Ide, K, Yamaura, A, ...

In vitro proliferation and functional activation of V alpha 24NKT cells following stimulation with alpha -galactosylceramide (alpha -GalCer)-pulsed dendritic cells (DCs) have been observed. Because...

Autocorrelation and Cross-Correlation Analyses of Alpha Waves in Reflection to Subjective Preference of a Flickering Light (1998)

Soeta, Y., Uetani, S., Ando, Y.

To clarify the relationship between the human brain activity and subjective preference of a flickering light under changing temporal frequency and mean luminance, alpha waves were analyzed by...

Microstructure of FCC/BCC Metal Multilayers. (1998)

Jennett, Nigel M., Dingley, D. J., Ando, Y.

Bilayers of cu/fe and cu/v and multilayers of ni/fe have been grown under high vacuum and ultra high vacuum conditions respectively with 111 epitaxy. multilayer layer thicknesses ranged from 3...

Observation of Secondary Particles Grown on Crystal Surfaces of Silicon Carbide. (1998)

Ando, Y., Iwanaga, H.

Pressureless sintering of ultrafine SiC powder containing a large amount of free Si was carried out with the aid of boron. Epitaxial growth of secondary particles was observed by scanning electron...

Antibody production against hepatitis C virus core and nonstructural 3 proteins is highly sensitive to deficits in T-cell function.

Ando, Y, Sönnerborg, A, Barkholt, L, Birkett, A, Ericzon, B G, Sällberg, M

The influence of suppression of CD4+ and CD8+ T cells on the humoral responses to hepatitis C virus (HCV) core and nonstructural 3 proteins was studied. An increasing viral burden cannot substitute...

Stereochemistry during aflatoxin biosynthesis: conversion of norsolorinic acid to averufin.

Yabe, K, Matsuyama, Y, Ando, Y, Nakajima, H, Hamasaki, T

A reaction sequence, norsolorinic acid (NA)-->averantin (AVN)-->5'-hydroxyaverantin (HAVN)-->averufin (AVR), is the early part of a biosynthetic pathway for aflatoxins. In this study, we determined...

Enzymatic conversion of norsolorinic acid to averufin in aflatoxin biosynthesis.

Yabe, K, Nakamura, Y, Nakajima, H, Ando, Y, Hamasaki, T

5'-Hydroxyaverantin (HAVN) was isolated from a mold, Emericella heterothallica IFO 30842. Aspergillus parasiticus NIAH-26, a UV-irradiated mutant of A. parasiticus SYS-4, produced neither aflatoxins...

A novel V beta 2-specific endogenous mouse mammary tumor virus which is capable of producing a milk-borne exogenous virus.

Niimi, N, Wajjwalku, W, Ando, Y, Nakamura, N, Ueda, M, Yoshikai, Y

We have previously reported new Mtv loci, Mtv-48 and -51, in the Japanese laboratory mouse strains CS and NC. Here we show by backcross analysis that both Mtv-48 and -51 cosegregate with very slow...

Isolation and characterization of Aspergillus parasiticus mutants with impaired aflatoxin production by a novel tip culture method.

Yabe, K, Nakamura, H, Ando, Y, Terakado, N, Nakajima, H, Hamasaki, T

A convenient procedure consisting of UV photography (K. Yabe, Y. Ando, M. Ito, and N. Terakado, Appl. Environ. Microbiol. 53:230-234, 1987) and a tip culture method has been devised for the isolation...

Biosynthetic relationship among aflatoxins B1, B2, G1, and G2.

Yabe, K, Ando, Y, Hamasaki, T

Aspergillus parasiticus NIAH-26, a UV-irradiated mutant of A. parasiticus SYS-4 (NRRL 2999), produces neither aflatoxins nor precursors. When sterigmatocystin (ST) or O-methylsterigmatocystin was fed...

Two distinct O-methyltransferases in aflatoxin biosynthesis.

Yabe, K, Ando, Y, Hashimoto, J, Hamasaki, T

The substances belonging to the sterigmatocystin group bear a close structural relationship to aflatoxins. When demethylsterigmatocystin (DMST) was fed to Aspergillus parasiticus NIAH-26, which...