Author

H. Kitagawa

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Preprint Aug 2026

Substitution effects in RuO$_2$ single crystals

RuO$_2$ has emerged as one of the leading candidates for investigating altermagnetism. Recent quantum oscillation and angle-resolved photoemission spectroscopy measurements found the absence of altermagnetism or antiferromagnetism in pure RuO$_2$ crystals. The continuing debate over intrinsic magnetic order in RuO$_2$...

Shubhankar Paul, K. Yamauchi, Shogo Yamashita et al. · 0 citations

Open access Aug 2026

Role of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"> <mml:mi>d</mml:mi> </mml:math> -electron density of states in the quantum size effect of Pt-Ni and Pt-Pd nanoparticles

We investigated the quantum size effect (QSE) in bimetallic Pt$_{1-x}$Pd$_x$ and Pt$_{1-x}$Ni$_x$ nanoparticles, using $^{195}$Pt nuclear magnetic resonance measurements. The temperature and size dependencies of the anomaly in the nuclear spin-lattice relaxation rate divided by temperature $1/T_1T$ in the Pt$_{1-x}$Pd$...

S. Kitagawa, Taishi Ihara, Yudai Kinoshita et al. · Physical review B · 0 citations