K. Iwasa

activity

20052021

most citedEmergence of magnetic long-range order in frustrated pyrochlore Nd

_{2}

_{2}

_{7}

with metal-insulator transition

161 citations · 641 across the 16 of their papers we have counts for

collaborators

Showing 2011Show all

6 papers · 1 filter

cond-mat.mtrl-sci2011★ 2 cited

Modified Cross-Correlation for Efficient White-Beam Inelastic Neutron Scattering Spectroscopy

K. Tomiyasu, M. Matsuura, H. Kimura +7

We describe a method of white-beam inelastic neutron scattering for improved measurement efficiency. The method consists of matrix inversion and selective extraction. The former is…

cond-mat.str-el2011★ 15 cited

Effect of cation size variance on spin and orbital order in Eu $_{1 - x}$ (La $_{0.254}$ Y $_{0.746}$ ) $_{x}$ VO $_{3}$

R. Fukuta, S. Miyasaka, K. Hemmi +8

We have investigated the $R$ -ion ( $R$ = rare earth or Y) size variance effect on spin/orbital order in Eu $_{1 - x}$ (La $_{0.254}$ Y $_{0.746}$ ) $_{x}$ VO $_{3}$ . The size variance disturbs o…

cond-mat.str-el2011★ 161 cited

Emergence of magnetic long-range order in frustrated pyrochlore Nd $_{2}$ Ir $_{2}$ O $_{7}$ with metal-insulator transition

K. Tomiyasu, K. Matsuhira, K. Iwasa +7

In this study, we performed powder neutron diffraction and inelastic scattering measurements of frustrated pyrochlore Nd $_{2}$ Ir $_{2}$ O $_{7}$ , which exhibits a metal-insulator transition…

cond-mat.str-el2011★ 18 cited

Molecular spin-liquid state in spin-3/2 frustrated spinel HgCr $_{2}$ O $_{4}$

K. Tomiyasu, H. Ueda, M. Matsuda +3

A hexamer-type spin excitation seen in spinel chromates $A$ Cr $_{2}$ O $_{4}$ ( $A$ = Mg, Zn, or Cd) is the representative spin-liquid-like state caused by geometrical frustration. To clar…

cond-mat.str-el2011★ 43 cited

Molecular spin-orbit excitations in the J_eff = 1/2 frustrated spinel GeCo $_{2}$ O $_{4}$

K. Tomiyasu, M. K. Crawford, D. T. Adroja +9

We describe powder and single-crystal inelastic neutron scattering experiments on a spinel-type antiferromagnet GeCo $_{2}$ O $_{4}$ , represented by an effective total angular momentum J_…

cond-mat.str-el2011★ 5 cited

Spin-orbit coupling inactivity of Co $^{2 +}$ ion in geometrically frustrated magnet GeCo $_{2}$ O $_{4}$

Keisuke Tomiyasu, Ayaka Tominaga, Shigeo Hara +5

We report single-crystal neutron diffraction studies on a spinel antiferromagnet GeCo $_{2}$ O $_{4}$ , which exhibits magnetic order with a trigonal propagation vector and tetragonal latt…

Modified Cross-Correlation for Efficient White-Beam Inelastic Neutron Scattering Spectroscopy

Effect of cation size variance on spin and orbital order in Eu1−x​(La0.254​Y0.746​)x​VO3​

Emergence of magnetic long-range order in frustrated pyrochlore Nd2​Ir2​O7​ with metal-insulator transition

Molecular spin-liquid state in spin-3/2 frustrated spinel HgCr2​O4​

Molecular spin-orbit excitations in the J_eff = 1/2 frustrated spinel GeCo2​O4​

Spin-orbit coupling inactivity of Co2+ ion in geometrically frustrated magnet GeCo2​O4​

Effect of cation size variance on spin and orbital order in Eu $_{1 - x}$ (La $_{0.254}$ Y $_{0.746}$ ) $_{x}$ VO $_{3}$

Emergence of magnetic long-range order in frustrated pyrochlore Nd $_{2}$ Ir $_{2}$ O $_{7}$ with metal-insulator transition

Molecular spin-liquid state in spin-3/2 frustrated spinel HgCr $_{2}$ O $_{4}$

Molecular spin-orbit excitations in the J_eff = 1/2 frustrated spinel GeCo $_{2}$ O $_{4}$

Spin-orbit coupling inactivity of Co $^{2 +}$ ion in geometrically frustrated magnet GeCo $_{2}$ O $_{4}$