N. Nakagawa

Toshiba (Japan)

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Harold Y. Hwang

Stanford University

K. Agatsuma

University of Birmingham

Toshitaka Yamazaki

National Astronomical Observatory of Japan

K. Arai

California Institute of Technology

Mitsuhiro Fukushima

National Astronomical Observatory of Japan

Tomofumi Susaki

Tokyo Institute of Technology

M. Ohashi

The University of Tokyo

S. Miyoki

The University of Tokyo

Y Arase

The University of Tokyo

Kazuhiro Yamamoto

National Cerebral and Cardiovascular Center

Cooperative Institutions

The University of Tokyo

180

Kyoto University

National Astronomical Observatory of Japan

Osaka University

Tohoku University

Tokyo University of Science

High Energy Accelerator Research Organization

Japan Science and Technology Agency

Tokyo Institute of Technology

Japan Aerospace Exploration Agency

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Photovoltaic Properties of Homojunction CIGS Solar Cells Using Various Divalent N-Type Dopants

World Conference on Photovoltaic Energy Conversion (2013)

Satoshi Sakurada K. Yamamoto Masahito Yamazaki Soichiro Shibasaki N. Nakagawa

Homojunction

Divalent

10.4229/28theupvsec2013-3bv.5.37

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Citations (1)

In situ photoelectron spectroscopy of LaMnO3 and La0.6Sr0.4MnO3 thin films grown by laser molecular beam expitaxy

Journal of Electron Spectroscopy and Related Phenomena (2004)

M. Oshima Daisuke Kobayashi Koji Horiba Hiroyuki Ohguchi Hiroshi Kumigashira

10.1016/j.elspec.2004.02.111

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Citations (3)

Electronic effects in LaTiO3/LaAlO3 superlattices

MRS Proceedings (2007)

G.W.J. Hassink N. Nakagawa M. Takizawa Hiroki Wadati Lena F. Kourkoutis

Pulsed Laser Deposition

10.1557/proc-1000-l05-04

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Citations (0)

Inherent charge transfer layer formation at La0.6Sr0.4FeO3∕La0.6Sr0.4MnO3 heterointerface

Applied Physics Letters (2004)

Hiroshi Kumigashira Daisuke Kobayashi R. Hashimoto Akira Chikamatsu M. Oshima

We have investigated the Mn3d spectral function in La0.6Sr0.4FeO3(LSFO)∕La0.6Sr0.4MnO3(LSMO) heterointerfaces as well as of La1−xSrxMnO3 films using Mn2p−3d resonant photoemission spectroscopy. The strong enhancement of the Mn3d spectra at the Mn2p−3d threshold enables us to extract the Mn3d spectra of LSMO layers in the vicinity of the interface with the LSFO overlayers. We have found that the spectral intensity of eg↑ states near the Fermi level is gradually reduced with increasing LSFO overlayer thickness and is finally saturated at 5–7ML. The close similarity in reduction of the intensity of the eg↑ states between the LSFO∕LSMO interface and hole-doped LSMO films indicates the occurrence of charge transfer at the interface between the LSMO and LSFO layers.

Overlayer

Spectral function

Intensity

10.1063/1.1766405

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Citations (44)

High-mobility electrons in SrTiO3 heterostructures

Physica E Low-dimensional Systems and Nanostructures (2004)

Harold Y. Hwang Akira Ohtomo N. Nakagawa David A. Muller J. L. Grazul

Atomic units

Stoichiometry

Electron Mobility

Deposition

Modulation (music)

10.1016/j.physe.2003.12.106

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Citations (28)

Control of spin frustration in manganite superlattices by embedding antiferromagnetic layer

Meeting abstracts of the Physical Society of Japan (2000)

N. Nakagawa Mikk Lippmaa Hiroyuki Ohguchi Keisuke Shibuya T. Koida

Manganite

Source

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ACdTe X-ray imaging device using vertical thin film field emitter array

Journal of Automation Mobile Robotics & Intelligent Systems (2009)

Yuki Tsunekawa N. Nakagawa Yoichiro Neo Hisashi Morii T. Aokia

Source

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The Japanese space gravitational wave antenna—DECIGO

Classical and Quantum Gravity (2006)

Seiji Kawamura Takashi Nakamura Masaki Ando Naoki Seto Kimio Tsubono

DECi-hertz Interferometer Gravitational wave Observatory (DECIGO) is the future Japanese space gravitational wave antenna. It aims at detecting various kinds of gravitational waves between 1 mHz and 100 Hz frequently enough to open a new window of observation for gravitational wave astronomy. The pre-conceptual design of DECIGO consists of three drag-free satellites, 1000 km apart from each other, whose relative displacements are measured by a Fabry–Perot Michelson interferometer. We plan to launch DECIGO in 2024 after a long and intense development phase, including two pathfinder missions for verification of required technologies.

Pathfinder

10.1088/0264-9381/23/8/s17

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Citations (470)

Transport mechanisms in manganite-titanate heterojunctions

Physical Review B (2007)

Tomofumi Susaki N. Nakagawa Harold Y. Hwang

We have found that the current-voltage characteristics of ${\mathrm{La}}_{0.7}{\mathrm{Sr}}_{0.3}\mathrm{Mn}{\mathrm{O}}_{3(\ensuremath{-}\ensuremath{\delta})}∕\mathrm{Nb}:\mathrm{Sr}\mathrm{Ti}{\mathrm{O}}_{3}$ rectifying junctions are quantitatively well described by (thermally assisted) tunneling with an effectively temperature-independent Schottky barrier under no magnetic field, while those of the oxygen deficient junction remarkably deviate from such a simple behavior as magnetic field is applied. These results indicate the junction magnetoresistance arising from magnetic-field changes of the interface band diagram via the strong electron-spin coupling in manganites.

Manganite

10.1103/physrevb.75.104409

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Citations (38)

Probing Electronic Structure Changes at Perovskite Oxide Interfaces Using Spatially Resolved EELS

Microscopy and Microanalysis (2007)

Lena F. Kourkoutis Yasushi Hotta Tomofumi Susaki N. Nakagawa HY Hwang

Extract Extended abstract of a paper presented at Microscopy and Microanalysis 2007 in Ft. Lauderdale, Florida, USA, August 5 – August 9, 2007

10.1017/s1431927607072893

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Citations (1)