409 citations
5 papers
Advanced chemical state studies of oxide films by lab-based HAXPES combining soft and hard X-ray sources
S. Siol, J. Mann, J. Newman +5
The greater information depth provided in Hard X-ray Photoelectron Spectroscopy (HAXPES) enables non-destructive analyses of the chemistry and electronic structure of buried interf…
Properties of Ferromagnetic Ga1-xMnxN Films Grown by Ammonia-MBE
Saki Sonoda, Hidenobu Hori, Yoshiyuki Yamamoto +5
Using ammonia as nitrogen source for molecular beam epitaxy, the GaN-based diluted magnetic semiconductor Ga1-xMnxN is successfully grown with Mn concentration up to x~6.8% and wit…
High TC ferromagnetism in diluted magnetic semiconducting GaN:Mn films
H. Hori, S. Sonoda, T. Sasaki +4
Wurtzite GaN:Mn films on sapphire substrates were successfully grown by use of the molecular beam epitaxy (MBE) system. The film has an extremely high Curie temperature of around 9…
Molecular Beam Epitaxy of Wurtzite (Ga,Mn)N Films on Sapphire(0001) Showing the Ferromagnetic Behaviour at Room Temperature
S. Sonoda, S. Shimizu, T. Sasaki +2
Wurtzite (Ga,Mn)N films showing ferromagnetic behaviour at room temperature were successfully grown on sapphire(0001) substrates by molecular beam epitaxy using ammonia as nitrogen…
Modified Laplace transformation method and its application to the anharmonic oscillator
Naoki Mizutani, Hirofumi Yamada
We apply a recently proposed approximation method to the evaluation of non-Gaussian integral and anharmonic oscillator. The method makes use of the truncated perturbation series by…