M. Lippmaa

Bulk-like d band of SrVO3 under a self-protective cap layer (2008)

Takizawa, M., Minohara, M., Kumigashira, H., Toyota, D., Oshima, M., Wadati, H., ...

We have performed a detailed angel-resolved photoemission spectroscopy study of in-situ prepared SrVO3 thin films. Naturally capped by a ``transparent'' protective layer, contributions from surface...

In-situ photoemission study of Pr_{1-x}Ca_xMnO_3 epitaxial thin films with suppressed charge fluctuations (2007)

Wadati, H., Maniwa, A., Chikamatsu, A., Ohkubo, I., Kumigashira, H., Oshima, M., ...

We have performed an {\it in-situ} photoemission study of Pr_{1-x}Ca_xMnO_3 (PCMO) thin films grown on LaAlO_3 (001) substrates and observed the effect of epitaxial strain on the electronic...

Gradual Disappearance of the Fermi Surface near the Metal-Insulator Transition in La$_{1-x}$Sr$_{x}$MnO$_{3}$ (2007)

Chikamatsu, A., Wadati, H., Kumigashira, H., Oshima, M., Fujimori, A., Lippmaa, M., ...

We report the first observation of changes in the electronic structure of La$_{1-x}$Sr$_{x}$MnO$_{3}$ (LSMO) across the filling-control metal-insulator (MI) transition by means of in situ...

Photoemission from buried interfaces in SrTiO3/LaTiO3 superlattices (2006)

Takizawa, M., Wadati, H., Tanaka, K., Hashimoto, M., Yoshida, T., Fujimori, A., ...

We have measured photoemission spectra of SrTiO3/LaTiO3 superlattices with a topmost SrTiO3 layer of variable thickness. Finite coherent spectral weight with a clear Fermi cut-off was observed at...

Effect of strong localization of doped holes in angle-resolved photoemission spectra of La$_{1-x}$Sr$_x$FeO$_3$ (2006)

Wadati, H., Chikamatsu, A., Takizawa, M., Hashimoto, R., Kumigashira, H., Yoshida, T., ...

We have performed an angle-resolved photoemission spectroscopy study of La$_{0.6}$Sr$_{0.4}$FeO$_3$ using {\it in situ} prepared thin films and determined its band structure. The experimental band...

Robust Ti4+ states in SrTiO3 layers of La0.6Sr0.4MnO3/SrTiO3/ La0.6Sr0.4MnO3 junctions (2005)

Kumigashira, H., Chikamatsu, A., Hashimoto, R., Oshima, M., Ohnishi, T., Lippmaa, M., ...

We have investigated the interfacial electronic structure of La0.6Sr0.4MnO3 (LSMO)/ SrTiO3 (STO)/ LSMO heterojunctions utilizing the elemental selectivity of photoemission spectroscopy. The Ti 2p...

Epitaxial growth and transport properties of Nb-doped SrTiO$_{3}$ thin films (2005)

Takahashi, K. S., Jaccard, D., Shibuya, K., Ohnishi, T., Lippmaa, M.

Nb-doped SrTiO$_{3}$ epitaxial thin films have been prepared on (001) SrTiO$_{3}$ substrates using pulsed laser deposition. A high substrate temperature ($>1000^{\circ}{C}$) was found to be necessary...

High Throughput Oxide Lattice Engineering by Parallel Laser Molecular Beam Epitaxy and Concurrent X-ray Diffraction (2005)

Ohtani, M., Lippmaa, M., Ohnishi, T., Kawasaki, M.

A novel laser molecular beam epitaxy (LMBE) system for the fabrication of atomically controlled oxides superlattices and an x-ray diffractometer that measures spatially-resolved x-ray diffraction...

The band structure and Fermi surface of La$_{0.6}$Sr$_{0.4}$MnO$_{3}$ thin films studied by in-situ angle-resolved photoemission spectroscopy (2005)

Chikamatsu, A., Wadati, H., Kumigashira, H., Oshima, M., Fujimori, A., Hamada, N., ...

We have performed an in situ angle-resolved photoemission spectroscopy (ARPES) on single-crystal surfaces of La$_{0.6}$Sr$_{0.4}$MnO$_{3}$ (LSMO) thin films grown on SrTiO$_{3}$ (001) substrates by...

Manifestation of Correlation Effects in the photoemission spectra of Ca$_{1-x}$Sr$_x$RuO$_3$ (2004)

Takizawa, M., Toyota, D., Wadati, H., Chikamatsu, A., Kumigashira, H., Fujimori, A., ...

We have measured soft x-ray photoemission and O 1{\it s} x-ray absorption spectra of Ca$_{1-x}$Sr$_x$RuO$_3$ thin films prepared {\it in situ}. The coherent and incoherent parts have been identified...

Temperature-dependent soft x-ray photoemission and absorption studies of charge disproportionation in La$_{1-x}$Sr$_x$FeO$_3$ (2004)

Wadati, H., Chikamatsu, A., Hashimoto, R., Takizawa, M., Kumigashira, H., Fujimori, A., ...

We have measured the temperature dependence of the photoemission and x-ray absorption spectra of La$_{1-x}$Sr$_x$FeO$_3$ (LSFO) epitaxial thin films with $x=0.67$, where charge disproportionation...

In situ photoemission study on atomically-controlled La$_{1-x}$Sr$_x$MnO$_3$ thin films: Composition dependence of the electronic structure (2004)

Horiba, K., Chikamatsu, A., Kumigashira, H., Oshima, M., Nakagawa, N., Lippmaa, M., ...

We have investigated change in the electronic structures of atomically-controlled La$_{1-x}$Sr$_x$MnO$_3$ (LSMO) thin films as a function of hole-doping level ($x$) in terms of {\it in situ}...

Nature of Well-Screened State in Hard X-ray Mn 2$p$ Core-Level Photoemission of La$_{1-x}$Sr$_x$MnO$_3$ Films (2004)

Horiba, K., Taguchi, M., Chainani, A., Takata, Y., Ikenaga, E., Namatame, H., ...

Using hard x-ray (HX ; $h\nu$ = 5.95 keV) synchrotron photoemission spectroscopy (PES), we study the intrinsic electronic structure of La$_{1-x}$Sr$_x$MnO$_3$ (LSMO) thin films. Comparison of Mn 2$p$...

Hole-doping-induced changes in the electronic structure of La$_{1-x}$Sr$_x$FeO$_3$ : soft x-ray photoemission and absorption study of epitaxial thin films (2004)

Wadati, H., Kobayashi, D., Kumigashira, H., Okazaki, K., Mizokawa, T., Fujimori, A., ...

We have studied the electronic structure of epitaxially grown thin films of La$_{1-x}$Sr$_x$FeO$_3$ by {\it in-situ} photoemission spectroscopy (PES) and x-ray absorption spectroscopy (XAS)...

High-speed mechanical and magnetic modulation of the [sup 57]Fe Mössbauer resonance / (1995)

Lippmaa, M.

Diss. -- Espoo -- Teknillinen korkeakoulu.