5 papers
Distinct Roles of Hydrogen in Superconducting and Ferromagnetic Phases of CoZrH
Yuto Watanabe, Takayoshi Katase, Daisuke Takegami +1
Hydrogenation offers a versatile route to tuning the physical properties of intermetallic compounds. In this study, we synthesized CoZrH with different hydrogen content…
Probing La-based nickelates with Ni 1 core-level photoelectron spectroscopy
Daisuke Takegami, Naoki Ito, Koto Fujinuma +15
We present a comparative Ni core level photoemission study of LaNiO, NdNiO, and LaNiO using both the Ni and the Ni . We address the challenges…
UCd: A strongly localized 5 material
Martin Sundermann, Naoki Ito, Daisuke Takegami +11
UCd is an antiferromagnetic uranium intermetallic compound ( = 5.3K) with enhanced electron mass and uranium-uranium spacings nearly twice the Hill limit, suggest…
Liquid-state structural asymmetry governs species-selective crystallization in multicomponent systems
Rikuya Ishikawa, Kyohei Takae, Daisuke Takegami +2
Multicomponent crystals are often assumed to form nearly random solid solutions when thermodynamically stable. However, crystal growth proceeds from structurally heterogeneous liqu…
Yb 4f-Ta 5d Hybridization and Valence Evolution in Tetragonal Tungsten Bronze Ba(3-x)YbxTa5O15
Daisuke Takegami, Haruki Takei, Masato Yoshimura +2
Here we investigate the electronic structure of the tetragonal tungsten bronze BaYbTaO by making use of hard x-ray photoemission spectroscopy. The core lev…