Doan, Anh Tung, <p class="Affiliation">^{<span style="font-size: 10.0pt; mso-bidi-font-size: 11.0pt;" lang="EN-US">1</span>}<span style="font-size: 10pt;" lang="EN-US">National Institute for Materials Science, 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan</span>&a, Japan