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9 papers · 2 filters
Role of d-electron density of states in the quantum size effect of Pt-Ni and Pt-Pd nanoparticles
S. Kitagawa, T. Ihara, Y. Kinoshita +3
We investigated the quantum size effect (QSE) in bimetallic PtPd and PtNi nanoparticles, using Pt nuclear magnetic resonance measurements. The tempe…
Dipolar-driven mean-field criticality in the ferrimagnet EuMnSiO
Masahiro Kawamata, Maxim Avdeev, Yusuke Nambu
We report mean-field critical behavior in EuMnSiO, a melilite-type ferrimagnet with spin-only Eu and Mn moments and negligible orbital contributions. Magn…
Intrinsic Magnetic Excitations and Heavy-Fermion Formation in the Frustrated Mn Pyrochlore System YMnZn ( = In and Al) Revealed by Nuclear Magnetic Resonance and Nuclear Quadrupole Resonance Measurements
Shunsaku Kitagawa, Kenji Ishida, Yoshihiko Okamoto +1
We performed nuclear magnetic resonance (NMR) and nuclear quadrupole resonance (NQR) measurements to investigate the microscopic electronic states of the -electron heavy-fermion…
Microscopic evidence for imaginary charge density wave in a kagome metal
S. Suetsugu, F. Hori, M. Shibata +9
Dissipationless charge transport without any energy loss is one of the most fascinating phenomena in condensed matter physics. This extraordinary state manifests in two well-establ…
Multi-probe detection of domain nucleation across the metal-insulator transition in VO
Shubhankar Paul, Giordano Mattoni, Amitava Ghosh +7
Electronic and structural degrees of freedom are often intimately coupled in strongly correlated systems, which result in intriguing macroscopic and microscopic phenomena. Using th…
Spinon shift current in a noncentrosymmetric quantum spin chain
Ryosuke Yamashita, Shintaro Takayoshi, Takahiro Morimoto
We theoretically study direct current generation in a quantum spin chain induced by spinon excitations by light irradiation. We consider a one-dimensional (1D) antiferromag…