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Thermometric quantum sensor using excited state of silicon vacancy centers in 4H-SiC devices
https://repo.qst.go.jp/records/81925
https://repo.qst.go.jp/records/81925a128f0e6-9415-468c-b47c-12a808d81757
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2021-02-16 | |||||
| タイトル | ||||||
| タイトル | Thermometric quantum sensor using excited state of silicon vacancy centers in 4H-SiC devices | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
M. Hoang, T.
× M. Hoang, T.× Ishiwata, H.× Yuta, Masuyama× Yuichi, Yamazaki× Kojima, K.× S.-Y., Lee× Takeshi, Ohshima× Iwasaki, T.× Hisamoto, D.× Mutsuko, Hatano× Yuta, Masuyama× Yuichi, Yamazaki× Takeshi, Ohshima× Mutsuko, Hatano |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | We characterized the excited state (ES) and the ground state (GS) of negatively charged silicon vacancy (V−Si) centers in hexagonal silicon carbide (4H-SiC) using optically detected magnetic resonance (ODMR) to realize thermometric quantum sensors. We report the observation of inverted contrast between ODMR signals of the ES and the GS and clarify the effect of energy sublevels of spin states in 4H-SiC. We confirm that ES ODMR signals of V−Si centers are dependent on the temperature with a thermal shift of 2 MHz/K on zero-field splitting (ZFS). Thus, we fabricated microscale dots of V−Si centers in a 4H-SiC p–n diode using proton beam writing and demonstrated the operation of thermometric quantum sensors by measuring the temperature change induced by an injected current. Our demonstration paves the way for the development of atomic-size thermometers inside SiC power devices for future applications. | |||||
| 書誌情報 |
Applied Physics Letters 巻 118, 号 4, p. 044001, 発行日 2021-02 |
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| 出版者 | ||||||
| 出版者 | AIP Publishing | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 0003-6951 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1063/5.0027603 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://aip.scitation.org/doi/10.1063/5.0027603 | |||||
