Electron spin resonance study of proton-irradiation-induced defects in graphite

Kyu Won Lee; H. Kweon; J. J. Kweon; Cheol Eui Lee

doi:10.1063/1.3305334

Electron spin resonance study of proton-irradiation-induced defects in graphite

Kyu Won Lee, H. Kweon, J. J. Kweon, Cheol Eui Lee

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

Electron spin resonance measurements of proton-irradiated graphite have revealed detailed nature of proton-irradiation-induced defects. Our results indicate that proton-irradiation creates confined defect regions of a metallic island surrounded by an insulating magnetic region which "isolates" the metallic island inside from the metallic graphite background outside. We have thus come up with a picture of phase separation in proton-irradiated graphite comprising three regions of distinct electrical and magnetic properties.

Original language	English
Article number	044302
Journal	Journal of Applied Physics
Volume	107
Issue number	4
DOIs	https://doi.org/10.1063/1.3305334
Publication status	Published - 2010

Bibliographical note

Funding Information:
This work was supported by the Korea Ministry of Education, Science and Technology (NRL Program R0A-2008-000-20066-0 and User Program of Proton Engineering Frontier Project, Project No. 20090082672) and by the Seoul Research and Business Development Program (Grant No. 10583). We thank Dr. H.-J. Woo at the Korea Institute of Geoscience and Mineral Resources (KIGAM) for the proton beam irradiation. The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.

ASJC Scopus subject areas

General Physics and Astronomy

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title = "Electron spin resonance study of proton-irradiation-induced defects in graphite",

abstract = "Electron spin resonance measurements of proton-irradiated graphite have revealed detailed nature of proton-irradiation-induced defects. Our results indicate that proton-irradiation creates confined defect regions of a metallic island surrounded by an insulating magnetic region which {"}isolates{"} the metallic island inside from the metallic graphite background outside. We have thus come up with a picture of phase separation in proton-irradiated graphite comprising three regions of distinct electrical and magnetic properties.",

author = "{Won Lee}, Kyu and H. Kweon and Kweon, {J. J.} and Lee, {Cheol Eui}",

note = "Funding Information: This work was supported by the Korea Ministry of Education, Science and Technology (NRL Program R0A-2008-000-20066-0 and User Program of Proton Engineering Frontier Project, Project No. 20090082672) and by the Seoul Research and Business Development Program (Grant No. 10583). We thank Dr. H.-J. Woo at the Korea Institute of Geoscience and Mineral Resources (KIGAM) for the proton beam irradiation. The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.",

year = "2010",

doi = "10.1063/1.3305334",

language = "English",

volume = "107",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

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T1 - Electron spin resonance study of proton-irradiation-induced defects in graphite

AU - Won Lee, Kyu

AU - Kweon, H.

AU - Kweon, J. J.

AU - Lee, Cheol Eui

N1 - Funding Information: This work was supported by the Korea Ministry of Education, Science and Technology (NRL Program R0A-2008-000-20066-0 and User Program of Proton Engineering Frontier Project, Project No. 20090082672) and by the Seoul Research and Business Development Program (Grant No. 10583). We thank Dr. H.-J. Woo at the Korea Institute of Geoscience and Mineral Resources (KIGAM) for the proton beam irradiation. The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.

PY - 2010

Y1 - 2010

N2 - Electron spin resonance measurements of proton-irradiated graphite have revealed detailed nature of proton-irradiation-induced defects. Our results indicate that proton-irradiation creates confined defect regions of a metallic island surrounded by an insulating magnetic region which "isolates" the metallic island inside from the metallic graphite background outside. We have thus come up with a picture of phase separation in proton-irradiated graphite comprising three regions of distinct electrical and magnetic properties.

AB - Electron spin resonance measurements of proton-irradiated graphite have revealed detailed nature of proton-irradiation-induced defects. Our results indicate that proton-irradiation creates confined defect regions of a metallic island surrounded by an insulating magnetic region which "isolates" the metallic island inside from the metallic graphite background outside. We have thus come up with a picture of phase separation in proton-irradiated graphite comprising three regions of distinct electrical and magnetic properties.

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DO - 10.1063/1.3305334

M3 - Article

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VL - 107

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 4

M1 - 044302

ER -

Electron spin resonance study of proton-irradiation-induced defects in graphite

Abstract

Bibliographical note

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