H. Ohta

activity

20052023

most citedAnomalous Itinerant-Electron Metamagnetic Transition in the Layered Sr1-xCaxCo2P2 System

33 citations · 93 across the 11 of their papers we have counts for

collaborators

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6 papers · 1 filter

cond-mat.str-el2023★ 1 cited

Magnetic field induced valence change in Eu(Co $_{1 - x}$ Ni $_{x}$ ) $_{2}$ P $_{2}$ up to 60 T

Raito Nakamura, Azumi Ishita, Jin Nakamura +8

The solid solution 122 compounds, Eu(Co $_{1 - x}$ Ni $_{x}$ ) $_{2}$ P $_{2}$ , show valence transition between divalent state and intermediate valence states at Eu, which is firmly correla…

cond-mat.str-el2022★ 1 cited

Refined magnetic structure of VI $_{3}$

Ola Kenji Forslund, Yuqing Ge, Hiroto Ohta +5

The van der Waals ferromagnet (FM), VI $_{3}$ , was studied by muon spin relaxation ( $μ^{+}$ SR) and first principle calculations based on density functional theory (DFT). Temperature dep…

cond-mat.str-el2021★ 6 cited

Co-existence of short- and long-range magnetic order in LaCo $_{2}$ P $_{2}$

Ola Kenji Forslund, Daniel Andreica, Hiroto Ohta +5

The ferromagnetic (FM) nature of the metallic LaCo $_{2}$ P $_{2}$ was investigated with the positive muon spin rotation, relaxation and resonance ( $μ^{+}$ SR) technique. Transverse and zero…

cond-mat.str-el2014★ 33 cited

Anomalous Itinerant-Electron Metamagnetic Transition in the Layered Sr1-xCaxCo2P2 System

Masaki Imai, Chishiro Michioka, Hiroto Ohta +4

We report magnetic properties of the layered itinerant system, Sr $_{1 - x}$ Ca $_{x}$ Co $_{2}$ P $_{2}$ in the magnetic field up to 70 T. As for the exchange-enhanced Pauli paramagnetic metal S…

cond-mat.str-el2011★ 16 cited

Large Magnetoresistance Effects in $L n$ CoAsO with a Ferromagnetic-Antiferromagnetic Transition

Hiroto Ohta, Chishiro Michioka, Kazuyoshi Yoshimura

A large magnetoresistance (MR) effect was observed in the layered compounds NdCoAsO and SmCoAsO, in which ferromagnetically ordered itinerant-electrons of Co are sandwiched by loca…

cond-mat.str-el2009★ 16 cited

Spectroscopic Study of $^{75}$ As and $^{139}$ La NMR on Layered Structure Ferromagnet LaCoAsO

Hiroto Ohta, Chishiro Michioka, Kazuyoshi Yoshimura

$^{75}$ As and $^{139}$ La field-swept NMR spectra were obtained for the novel weakly itinerant ferromagnet LaCoAsO with 2D layered structure above the Curie temperature of 55 K. By…

Magnetic field induced valence change in Eu(Co1−x​Nix​)2​P2​ up to 60 T

Refined magnetic structure of VI3​

Co-existence of short- and long-range magnetic order in LaCo2​P2​