DataVXACS Applied Materials & InterfacesPaper
journal article·2024-03-13

Spin-State Control of Shallow Single NV Centers in Hydrogen-Terminated Diamond

Taisuke Kageura, Yosuke Sasama, Tokuyuki Teraji, Kenji Watanabe, Takashi Taniguchi, Keisuke Yamada, Kosuke Kimura, Shinobu Onoda, Yamaguchi Takahide

ACS Applied Materials & Interfaces· Volume 16· Issue 10
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Source abstract

Abstract

The ability to control the charge and spin states of nitrogen-vacancy (NV) centers near the diamond surface is of pivotal importance for quantum applications. Hydrogen-terminated diamond is promising for long spin coherence times and ease of controlling the charge states due to the low density of surface defects. However, it has so far been challenging to create negatively charged single NV centers with controllable spin states beneath a hydrogen-terminated surface because atmospheric adsorbates that act as acceptors induce surface holes. In this study, we optically detected the magnetic resonance of shallow single NV centers in hydrogen-terminated diamond through precise control of the nitrogen implantation fluence. Furthermore, we found that the probability of detecting the resonance was enhanced by reducing the surface acceptor density through passivation of the hydrogen-terminated surface with hexagonal boron nitride without air exposure. This control method opens up new opportunities for using NV centers in quantum applications.
Source: openalex_inverted_index · Quality: baseline

Research context

Biomaterials

OpenAlex topics: Diamond and Carbon-based Materials Research · Metal and Thin Film Mechanics · High-pressure geophysics and materials

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Research Center for Materials Nanoarchitectonics, National Institute for Materials Science (NIMS), Tsukuba 305-0044, Japan

National Institute of Advanced Industrial Science and Technology, Tosu 841-0052, Japan

International Center for Young Scientists, National Institute for Materials Science, Tsukuba 305-0044, Japan

Research Center for Electronic and Optical Materials, National Institute for Materials Science, 1-1 Namiki, Tsukuba 305-0044, Japan

National Institutes for Quantum Science and Technology (QST), Takasaki 370-1292, Japan

Graduate School of Science and Technology, Gunma University, Kiryu 376-8515, Japan

University of Tsukuba, Tsukuba 305-8571, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology · Ministry of Internal Affairs and Communications · Moonshot Research and Development Program · Japan Science and Technology Agency

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