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Publications

Prof. Zonghoon Lee’s Atomic-Scale Electron Microscopy Lab

Publications

Link to Google Scholar


Publications in Nature | Science | their sister journals


Nature, 582, 511-514, 2020 / Nature Nanotechnology, 15, 289-295, 2020 / Nature Nanotechnology, 15, 59-66, 2020 / Science Advances, 6 (10), eaay4958, 2020 / Nature Electronics, 3, 207-215, 2020 / Nature Communications, 11 (1437), 2020 / Nature Energy, 3, 773-782, 2018 / Nature Communications, 8:1549, 2017 / Nature Communications, 6:8294, 2015 / Nature Communications, 6:7817, 2015 / Nature Communications, 5:3383, 2014




Abstract


 Ti1−xCoxO2−δ nanobelts were synthesized without using any metal catalysts by metallorganic chemical vapor deposition. The nanobelts consisted of ~10–20 nm nanocrystallites, which were dominantly rutile structure. The Ti0.986Co0.014O2−δ nanobelt sample showed a magnetic anisotropy with a high coercive field value (~500 Oe) at room temperature, significantly affected by intrinsic effect. In contrast, the Ti0.982Co0.018O2−δ nanobelt sample revealed isotropic magnetic characteristics due to enhanced Co clustering. A few or several Co clusters per nanobelt were typically observed even in the lightly Co-doped Ti0.986Co0.014O2−δ nanobelts because of the very thin thickness (~20 nm) and high specific surface area of nanobelts.

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2011

Prior to Joining UNIST, 2011

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