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Park, Noejung
Computational Physics & Electronic Structure Lab
Research Interests
  • Electronic structure calculation, computational physics, computational material science

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Organic-based magnetic semiconductor thin film of Fe(TCNQ) x∼2 developed by physical vapor deposition and local spin density induced core-level shifts

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Title
Organic-based magnetic semiconductor thin film of Fe(TCNQ) x∼2 developed by physical vapor deposition and local spin density induced core-level shifts
Author
Jo, JunhyeonJin, Mi-JinPark, JungminModepalli, VijayakumarKao, Chi-YuehEpstein, Arthur JChoi, MinPark, NoejungLee, Seung-YeopJeon, CheolhoYoo, Jung-Woo
Issue Date
2014-10
Publisher
ELSEVIER SCIENCE SA
Citation
SYNTHETIC METALS, v.196, pp.56 - 60
Abstract
Thin film of Fe(TCNQ:tetracyanoquinodimethane)x∼2 that exhibits both ferromagnetic and semiconducting behavior was developed by physical vapor deposition. The IR and photoemission spectra display clear evidences of coordination between metal and TCNQ based on charge transfer rather than physical mixture. The shifts of C and N 1s core-level spectra due to metal-TCNQ coordination reveal the local spin density of the TCNQ- anion, predicted by DFT calculation. The valence band spectra of the Fe(TCNQ)x∼2 thin film also confirm the formation of a singly occupied molecular orbital (SOMO) in TCNQ-, which leads to long-range magnetic order as confirmed by a vibrating sample magnetometer.
URI
https://scholarworks.unist.ac.kr/handle/201301/5628
URL
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84906255762
DOI
10.1016/j.synthmet.2014.07.018
ISSN
0379-6779
Appears in Collections:
PHY_Journal Papers
MSE_Journal Papers
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