In recent two weeks, I have been enjoying everyday moments of doing "usual research works; Discuss with colleagues, read papers, etc. Get inspired in all possible ways. Think hard and formulate a scientific question to answer. Refine the question into a theoretical physics problem. Derive equations and write codes. Get frustrated and overcome technical challenges …
Orbitronics at ultrafast timescale
In this month, finally the paper on the observation of the ballistic orbital current was published. Tom S. Seifert, Dongwook Go, Hiroki Hayashi, Reza Rouzegar, Frank Freimuth, Kazuya Ando, Yuriy Mokrousov, Tobias KampfrathTime-domain observation of ballistic orbital-angular-momentum currents with giant relaxation length in tungstenNature Nanotechnology (2023). https://doi.org/10.1038/s41565-023-01470-8 A nicely written News & Views by M. Benjamin Jungfleisch …
Hilary Hahn Concert with Belgian National Orchetra
Last year in January, I went to Brussels to see the concert of a famous contemporary violinist, Hilary Hahn, with Belgian National Orchestra. I remember COVID was still around, and although we got vaccinated, we were still wearing masks and being careful -- Coughing in public space immediately attracted all the attention 😂 So, this …
Continue reading "Hilary Hahn Concert with Belgian National Orchetra"
Seeing Orbital Currents with Light
After the long peer review, our paper on the magneto-optical detection of orbital Hall effect is finally published in the last month: Young-Gwan Choi, Daegeun Jo, Kyung-Hun Ko, Dongwook Go, Kyung-Han Kim, Hee Gyum Park, Changyoung Kim, Byoung-Chul Min, Gyung-Min Choi, Hyun-Woo LeeObservation of the orbital Hall effect in a light metal TiNature 619, 52 (2023) I think …
Visit of NTU on the last day
After four days of the conference, on the last day before my flight, I visited the group of Prof. Prem at NTU. We discussed ongoing projects on orbital currents more in depth and in detail and had chance to talk lots of other things in a relaxed environment. Meeting researchers in their own workplace is …
A conference in Singapore
From this week, I have been in Singapore for participating a conference -- International Conference on Materials for Advanced Technologies (ICMAT) organized by the Materials Research Society of Singapore. I left Germany on Saturday afternoon, and by the time when I reached Singapore, it was already close to the midnight just before the start of …
Keeping scientific curiosity
I think most peope in science would agree that as one's career progresses, there's less and less time to focus on actual scientific works. There can be various reasons, but in my case, recently, it's mainly due to submitting research proposals for fundings and applying jobs in universities and research centres. Also, if there are …
Seminar at Paris
On this Monday, I visited Paris to give a seminar and discuss with my colleagues. The title of my seminar was "Crucial role of long-range orbital transport in spintronic systems", a topic that I have been working since a few years ago. But I prepared half of my talk about the pedagogical introduction of the …
A few songs for inspiration
Andy Timmons, Electric Gypsy https://youtu.be/Pf5yadex7EI Metallica, Master of Puppets https://youtu.be/G9kz-tag04U Guns N'Roses, Novembe Rain https://youtu.be/4_fvXrgAm1A
Life in Zürich
It's been three weeks since I came to Zürich, as of today, and I am getting more and more used to the life here. The first thing that I got used to is I do not really care much about the bus schedule anymore. The public transportation is amazing here, and there are buses in …
Spintronics, Orbitronics, and Physics Beyond 