43 citations · 98 across the 14 of their papers we have counts for
14 papers
Magnetism and spin dynamics of NaYb(MoO): A weakly interacting rare-earth stretched diamond lattice
N. Rajeesh Kumar, J. Khatua, Changhyun Koo +8
We report a comprehensive investigation of the structural and magnetic properties of NaYb(MoO), a member of the stretched diamond magnetic lattice family. Neutron powde…
Recent application studies of an INTPIX4NA SOIPIX detector-based X-ray camera using an SiTCP-XG 10GbE-based high-speed readout system at KEK facilities
Ryutaro Nishimura, Noriyuki Igarashi, Daisuke Wakabayashi +10
The Silicon-On-Insulator PIXel (SOIPIX) detector is a unique monolithic structure imaging device currently being developed by the SOIPIX group, led by the High Energy Accelerator R…
Measurement of radionuclide production probabilities in negative muon nuclear capture and validation of Monte Carlo simulation model
Y. Yamaguchi, M. Niikura, R. Mizuno +6
As part of the development of a sample radioactivity calculation program, we have measured radionuclide production probabilities in negative muon nuclear capture to update experime…
Development of a Neutron Imager using CMOS Pixelated Sensor
Yoshio Kamiya, Hidetoshi Ohshita, Ryutaro Nishimura +5
We acquired an image of the Siemens Star Chart using the 10B-INTPIX4 CMOS pixelated imager at J-PARC MLF BL21 (NOVA). The image blurriness, characterized by a root mean square (rms…
Lifetime measurement of the muonic atoms of enriched Si isotopes
R. Mizuno, M. Niikura, S. Akamatsu +12
Background: A muonic atom, composed of a negative muon and an atomic nucleus, undergoes two primary decay processes: muon-electron decay and muon nuclear capture. The branching rat…
Revised Magnetic Structure and Tricritical Behavior of the CMR Compound NaCrO Investigated with High Resolution Neutron Diffraction and SR
Elisabetta Nocerino, Ola K. Forslund, Hiroya Sakurai +11
The mixed valence Cr compound NaCrO, synthesized using a high-pressure technique, offers a unique playground for investigating unconventional physical properties in condens…
The Duel of Magnetic Interactions & Structural Instabilities: Itinerant Frustration in the Triangular Lattice Compound LiCrSe
E. Nocerino, S. Kobayashi, C. Witteveen +14
The recent synthesis of the chromium selenide compound LiCrSe constitutes a valuable addition to the ensemble of two-dimensional triangular lattice antiferromagnets (2D-TLA). I…
Nuclear and magnetic spin structure of the antiferromagnetic triangular lattice compound LiCrTe investigated by SR as well as neutron and X-ray diffraction
E. Nocerino, C. Witteveen, S. Kobayashi +12
Twodimensional (2D) triangular lattices antiferromagnets (2DTLA) often manifest intriguing physical and technological properties, due to the strong interplay between lattice…
Investigation of Ionic and Anomalous Magnetic Behavior in CrSe Using Li -NMR
John O. Ticknor, Izumi Umegaki, Ryan M. L. McFadden +12
We have studied a mosaic of 1T-CrSe single crystals using -detected nuclear magnetic resonance of Li from 4 to 300 K. We identify two broad resonances that show no evi…
Spinon, soliton and breather in the spin-1/2 antiferromagnetic chain KCuGaF
Izumi Umegaki, Hidekazu Tanaka, Nobuyuki Kurita +7
Elementary excitations of the S=1/2 one-dimensional antiferromagnet KCuGaF_6 were investigated by inelastic neutron scattering in zero and finite magnetic fields perpendicular to t…
Magnetic phase diagram of SrCaCoP
J. Sugiyama, H. Nozaki, I. Umegaki +8
In order to study the phase diagram from a microscopic viewpoint, we have measured wTF- and ZF-SR spectra for the SrCaCoP powder samples with , 0.2, 0…
Ferromagnetism induced in anisotropic stacked kagome-lattice antiferromagnet CsCuCeF
Taiki Amemiya, Izumi Umegaki, Hidekazu Tanaka +3
The magnetic properties of CsCuCeF were investigated through magnetization and specific heat measurements. CsCuCeF is composed of a buckled kagome lat…
Thermodynamic properties of quantum sine-Gordon spin chain system KCuGaF6
Izumi Umegaki, Hidekazu Tanaka, Toshio Ono +2
We investigated the thermodynamic properties of the spin-1/2 one-dimensional Heisenberg antiferromagnet KCuGaF6 by measuring the specific heat in magnetic fields. When this compoun…
Elementary excitations of S=1/2 one-dimensional antiferromagnet KCuGaF6 in magnetic field and quantum sine-Gordon model
Izumi Umegaki, Toshio Ono, Hidekazu Tanaka +2
Elementary excitations of the S=1/2 one-dimensional Heisenberg antiferromagnet KCuGaF with exchange constant =103 K were investigated by high-frequency ESR measurements…