OxTalks will soon move to the new Halo platform and will become 'Oxford Events.' There will be a need for an OxTalks freeze. This was previously planned for Friday 14th November – a new date will be shared as soon as it is available (full details will be available on the Staff Gateway).
In the meantime, the OxTalks site will remain active and events will continue to be published.
If staff have any questions about the Oxford Events launch, please contact halo@digital.ox.ac.uk
In this paper, I report novel magnetic functionalities such as humidity-induced magnetization, light-induced spin-crossover magnetic phenomenon, chiral photomagnetism, photoswitching of magnetization-induced second harmonic generation, and light-induced switching of superionic conductivity, using cyanide-bridged metal assemblies including Prussian blue analogues. Furthermore, by nanoscale chemical synthesis, novel functional materials were synthesized from abundant elements. For example, epsilon-iron oxide (ε-Fe2O3) shows a huge coercive field and high-frequency millimeter wave absorption [BBC, Science Museum London] and has potential for a novel recording method of focused millimeter wave assisted magnetic recording, F-MIMR [The Economist]. As another example, we have discovered lambda-trititanium-pentoxide (λ-Ti3O5), which exhibits photo-induced metal-semiconductor transition at room temperature as well as long-term heat storage properties suggesting a novel concept of preserving heat energy for a prolonged period [AFP, NHK]. Such metal oxide materials contribute to solving environmental and energy issues and to promoting green transformation (GX). Here, I will introduce the functional materials developed in our group. Additionally, I will also introduce the PhD project “Fostering Advanced Human Resources to Lead Green Transformation” supporting 600 PhD students of all fields at the University of Tokyo.
[1] S. Ohkoshi, et al., Nature Materials, 3, 857 (2004).
[2] S. Ohkoshi, et al., Phys. Rev. Lett., 82,
1285 (1999) (Nature “News & Views”).
[3] S. Ohkoshi, et al., Nature Chemistry, 3, 564 (2011).
[4] S. Ohkoshi, et al., Nature Photonics, 8, 65 (2014).
[5] S. Ohkoshi, et al., Nature Chemistry,
12, 338-344 (2020).
[6] A. Namai, S. Ohkoshi, et al., Nature Communications, 3, 1035 (2012).
[7] S. Ohkoshi, et al., Advanced Materials, 32, 2004897 (2020).
[8] S. Ohkoshi, et al.,
Nature Chemistry, 2, 539 (2010).
[9] H. Tokoro, S. Ohkoshi, et al., Nature Communications, 6,
7037 (2015).
[10] T. Nakamura, S. Ohkoshi, et al., Science Advances, 6, 5264 (2020).
[11] C. Mariette, et al., Nature Communications, 12, 1239 (2021).
Ohkoshi Laboratory:
www.chem.s.u-tokyo.ac.jp/users/ssphys/english/index.html
“Fostering Advanced Human Resources to Lead Green Transformation” Project:
www.cis-trans.jp/spring_gx/index-e.htm
