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  1. 原著論文

Room-temperature hyperpolarization of polycrystalline samples with optically polarized triplet electrons: pentacene or nitrogen-vacancy center in diamond?

https://repo.qst.go.jp/records/81765
https://repo.qst.go.jp/records/81765
a682e1ce-9ef5-4981-bc38-c1bc3f3c3f3a
Item type 学術雑誌論文 / Journal Article(1)
公開日 2021-02-02
タイトル
タイトル Room-temperature hyperpolarization of polycrystalline samples with optically polarized triplet electrons: pentacene or nitrogen-vacancy center in diamond?
言語
言語 jpn
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 Miyanishi, Koichiro

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WEKO 1008131

Miyanishi, Koichiro

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F. Segawa, Takuya

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WEKO 1008132

F. Segawa, Takuya

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Takeda, Kazuyuki

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WEKO 1008133

Takeda, Kazuyuki

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Ohki, Izuru

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WEKO 1008134

Ohki, Izuru

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Onoda, Shinobu

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WEKO 1008135

Onoda, Shinobu

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Ohshima, Takeshi

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WEKO 1008136

Ohshima, Takeshi

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Abe, Hiroshi

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WEKO 1008137

Abe, Hiroshi

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Takashima, Hideaki

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WEKO 1008138

Takashima, Hideaki

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Takeuchi, Shigeki

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WEKO 1008139

Takeuchi, Shigeki

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I. Shames, Alexander

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WEKO 1008140

I. Shames, Alexander

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Morita, Kohki

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WEKO 1008141

Morita, Kohki

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Wang, Yu

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WEKO 1008142

Wang, Yu

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Frederick, T.-K. So

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WEKO 1008143

Frederick, T.-K. So

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Terada, Daiki

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WEKO 1008144

Terada, Daiki

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Igarashi, Ryuji

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WEKO 1008145

Igarashi, Ryuji

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Kagawa, Akinori

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WEKO 1008146

Kagawa, Akinori

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Kitagawa, Masahiro

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WEKO 1008147

Kitagawa, Masahiro

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Mizuochi, Norikazu

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WEKO 1008148

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Shirakawa, Masahiro

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WEKO 1008149

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Negoro, Makoto

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Izuru, Ohki

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Shinobu, Onoda

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WEKO 1008152

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Takeshi, Ohshima

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WEKO 1008153

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Hiroshi, Abe

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So, Frederick

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Daiki, Terada

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Ryuji, Igarashi

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Masahiro, Shirakawa

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Makoto, Negoro

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抄録
内容記述タイプ Abstract
内容記述 We demonstrate room-temperature 13C hyperpolarization by dynamic nuclear polarization (DNP) using optically polarized triplet electron spins in two polycrystalline systems: pentacene-doped [carboxyl-13C] benzoic acid and microdia-monds containing NV−centers. For both samples, the integrated solid effect (ISE) is used to polarize the13C spin system in magnetic fields of 350-400 mT. In the benzoic acid sample, the13C spin polarization is enhanced up to 0.12% through directelectron-to-13C polarization transfer without performing dynamic1H polarization followed by 1H-13C cross polarization. In5addition, ISE has been successfully applied for the first time to polarize naturally abundant 13C spins in a microdiamond sample to 0.01%. To characterize the buildup of the13C polarization, we discuss the efficiencies of direct polarization transfer be-tween the electron and13C spins as well as that of13C–13C spin diffusion, examining various parameters which are beneficial or detrimental for successful bulk dynamic13C polarization.
書誌情報 Magnetic Resonance

巻 2, 号 1, p. 33-48, 発行日 2021-01
出版者
出版者 Copernicus Publications
ISSN
収録物識別子タイプ ISSN
収録物識別子 0730-725X
DOI
識別子タイプ DOI
関連識別子 10.5194/mr-2-33-2021
関連サイト
識別子タイプ URI
関連識別子 https://mr.copernicus.org/articles/2/33/2021/mr-2-33-2021.html
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