K. Ohta

collaborators

2 papers

cond-mat.supr-con2026

Probing the Meissner effect in single crystals of $B i_{2} S r_{2} C a_{2} C u_{3} O_{10 + I^´}$ via wide-field quantum microscopy under high pressure

Masahiro Ohkuma, Ryo Matsumoto, Shintaro Adachi +5

We investigated the pressure dependence of the superconducting transition temperature ( $T_{c}$ ) in optimally doped Bi $_{2}$ Sr $_{2}$ Ca $_{2}$ Cu $_{3}$ O $_{10 + I^´}$ (Bi-2223) single crystals…

cond-mat.mtrl-sci2026

Optically detected magnetic resonance of nitrogen-vacancy centers in microdiamonds inside nanopolycrystalline diamond anvil cell

Masahiro Ohkuma, Keigo Arai, Kenji Ohta +4

We demonstrated optically detected magnetic resonance (ODMR) of nitrogen-vacancy (NV) centers in microdiamonds inside a diamond anvil cell pressurized with nanopolycrystalline diam…

Probing the Meissner effect in single crystals of Bi2​Sr2​Ca2​Cu3​O10+I^´​ via wide-field quantum microscopy under high pressure

Optically detected magnetic resonance of nitrogen-vacancy centers in microdiamonds inside nanopolycrystalline diamond anvil cell

Probing the Meissner effect in single crystals of $B i_{2} S r_{2} C a_{2} C u_{3} O_{10 + I^´}$ via wide-field quantum microscopy under high pressure