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Welcome


We are a surface physics research group at the Department of Applied Physics, Osaka University, Japan (group leader; Kazuyuki Sakamoto). Our main interest is to explore exotic low-dimensional physical phenomena of atomic layer crystals formed on solid surfaces by inorganic atoms and/or organic molecules.

Research profile from a booklet of OU.

Lecture to introduce our research (high school level, Japanese only)

Surface Nano Physics Group



Aspire SpinMaD meeting@Sendai, Japan (HC, YH, ST, Nov. 9-11, 2026)

Experiment@HiSOR, Japan (HN, SI, ZW, KS, Nov. 16-20, 2026)

Kansai thin film surface physics seminar (Nov. 27-28, 2026)

Experiment@SOLEIL (HC, ST, Dec. 7-14, 2026)

Experiment@HiSOR, Japan (HK,RO, ST, Jan. 18-22, 2027)

ALC-W'27@Furano, Japan(KS, Jan. 19-27)



New article published online

Y. Toichi et al., Surface and bulk electronic states of a single crystal thallium film, Sci. Rep. (2026).

https://doi.org/10.1038/s41598-026-75365-8.


Collaboration with Mr. Davide Benettin from Spintec, France@UOsaka.


HK, HC, YH, ST, and KS attended ACSIN-16 & ICSPM34@Himeji, Japan.

ST got the "Young researcher award". Congratulation!


Previous Ph.D student Yuichiro's paper "Surface and bulk electronic states of a single crystal thallium film" was accepted in Sci. Rep.


KS visited NTNU and gave a seminar, Trondheim, Norway.


YH, ST, and KS attended the 81th JPS annual meeting@Tokyo, Japan.

YH got the "Student Presentation Award". Congratulation!


KS attented the ECOSS2026 conference@Oslo, Norway.


Entrance exam of the Graduate School of Engineering, UOsaka.


YH has returned from his training program at NTNU.


HC has returned from her training program at LEEDS University.


Beamtime at SAGA-LS (SN, HK, and KS).


Beamtime at SAGA-LS (RH, RI, and ST).


YH has departed to NTNU, Norway for a two-months overseas training program.


KS attended the TCECM workshop@Tainan, Taiwan.


ZW, YH, ST, and KS attended the JST Aspire meeting@Tokyo.


ST visited The Univ. of LEEDS and gave a seminar.


CH and ST attended the INTERMAG 2026@Manchester, UK.


Three new members in our group. Welcome SI, RO, and RH.


Graduation ceremony!

Congrats, Yuichiro, Hikaru, Runa, Shota_Y, Shota_N, and Kazuki.


KS gave a seminar at KTH and visited Linkoping Univ., Sweden


Four new members in our group. Welcome HK, YK, HN, and KM.


Skiing at Seaside Valley (Itoigawa, Nigata) with groups from the Univ. of Tokyo

and Kanawaza Univ.


Defense of BSc theses (SN and KY)


Defense of MSc theses (HI, RO, and SY)


New article published

R. Yukawa et al., Charge-transfer-induced depth redistribution of surface spin states in the topological insulator Sb2Te3, Phys. Rev. B 113, 075412-1-7 (2026).

https://doi.org/10.1103/jf8w-95k3.


YT passed the final exam for doctoral dissertation.


KS gave a talk at ALC-W 2026 (Furano, Japan)


Beamtime at SAGA-LS (DW, YH, and ST).


Previous assistant professor Ryu's paper "Charge-transfer-induced depth redistribution of surface spin states in the topological insulator Sb2Te3" was accepted in Phys. Rev. B.


YT gave an invited talk at TPS 2026 meeting (National Chung Cheng Univ., Chiayi, Taiwan)


YH has returned from his three-month research stay at Spintec, France.


Happy New Year!!





Surface Nano Physics Group






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