Author

Kenji Watanabe

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Open access Aug 2026

Efficient creation of shallow <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msup> <mml:mrow> <mml:mi>NV</mml:mi> </mml:mrow> <mml:mo>−</mml:mo>

Negatively charged nitrogen-vacancy (NV$^-$) centers located a few nanometers below the diamond surface are key quantum defects for nanoscale sensing of external spins. However, the creation of shallow NV$^-$ centers with high yield remains a materials challenge. Here, we demonstrate that high-angle ion implantation en...

K. Sasaki, H. Watanabe, T. Teraji et al. · PHYSICAL REVIEW MATERIALS · 0 citations

Aug 2026

Thermal-Budget-Decoupled Integration of Freestanding Hafnium-Based Ferroelectric Dielectrics for van der Waals Memory Transistors.

Ferroelectric memories have emerged as promising candidates for nonvolatile memory and neuromorphic computing owing to their capability for direct channel modulation through polarization switching. However, the high thermal budget required for synthesis and post-annealing processes hampers scalable integration and degr...

Song Zhao, Ming-Chun Zheng, Feng-Shou Yang et al. · Advances in Materials · 0 citations