Welcome to IBS Conference on Surface Atomic Wires.

 This is the second international conference for self-assembled atomic wires on semiconductor surfaces following the success of the first conference in 2016.
 These material systems started to be intensively studied after the finding of interesting 1D metallic band structures and phase transitions in the late half of 1990’s. Major physics discussed so far includes, charge density wave, non-Fermi liquids, silicon magnetism, spin-orbit interaction, and recently topological phases and excitations.
 In particular, this year, the conference widens its scope to include Majorana edge states, quantum spin physics, and new 1D channels in 2D van der Waals materials, and engineered artificial lattices.
 We hope that this conference can summarize the current status of the field, define unsolved problems, and find new research directions and collaborations.

Date & Venue

Date : August 26-29, 2019

Venue : LAHAN Hotel Pohang (Former, Best Western Pohang Hotel), Pohang, Korea


Structural, electronic and magnetic properties of self-assembled atomic wires
Fabrication and tailored properties of engineered artificial lattices
New 1D electronic channels in 2D van der Waals materials

Organizing Committee

H. W. Yeom, Institute for Basic Science
Steven C. Erwin, Naval Research Lab
S. Hasegawa, The University of Tokyo
W. G. Schmidt, Paderborn University

Contact Info

Chair Han Woong Yeom (yeom@postech.ac.kr)
Secretary Jung Wha Lee (aja@ibs.re.kr)


Time August 26 (Mon)
13:30-14:00 Registration
14:00-14:40 Keynote_Peter Liljeroth, Aalto Univ. School of Science, Finland
Designer electronic states in engineered atomic chains
14:40-15:10 Geunseop Lee, Department of Physics, Inha Univ.
Phase transition and solitons intertwined with defects in a quasi-one dimensional atomic-wire array
15:10-15:40 Steven C. Erwin, Center for Computational Materials Science, Naval Research Lab
Silicon and gold solitons in Si(553)Au: New results from theory and experiment
15:40-16:00 Coffee Break
16:00-16:30 Fumio Komori, The Institute for Solid State Physics, The Univ. of Tokyo
Two types of spin textures in a Sn atomic layer at graphene/SiC(0001) interface
16:30-17:00 Hanchul Kim, Department of Applied Physics, Sookmyung Women’s Univ.
Identification of Gd-induced Defects in the (111) Surface of the Topological Insulator, Bi2Te3
17:00-17:30 Harold J.W. Zandvliet, Faculty of Science and Technology, Univ. of Twente
Probing topologically protected 1D states in 2D Dirac materials
17:30-18:00 Michelle Simmons, Univ. New South Wales
Atomic qubits in silicon
18:00-20:30 Dinner
Time August 27 (Tue)
09:00-09:40 Keynote_Tristan Cren, Sorbonne Université, France
Evidence of Majorana dispersive edge states and Majorana zero modes in a 2D topological superconductor
09:40-10:10 Shuji HASEGAWA, Department of Physics, The Univ. of Tokyo
Two- and one-dimensional transport without energy dissipation at surface atomic layers
10:10-10:30 Coffee Break
10:30-11:00 Joachim Wollschläger, Department of Physics, University Osnabrück
Diffraction studies on rare earth silicide quasi-one dimensional structures and nano wires formed on Si surfaces
11:00-11:30 Stephan Appelfeller, Faculty of Mathematics and Natural Sciences, Technische Universität Berlin
From 2D to 1D: Tb silicide nanowires on Si(hhk)
12:00-13:30 Lunch
13:30-14:10 Keynote_Thomas Michely, Univ. of Cologne, Germany
Tomonaga-Luttinger Liquid in a Box: Electrons Confined within MoS2 Mirror-Twin Boundaries
14:10-14:40 Gil Young Cho, Department of Physics, POSTECH
Flat Bands, Topology, and Superconductivity of “Magic” Honeycomb Network in TaS2
14:40-15:10 Tae-Hwan Kim, Department of Physics, POSTECH
Microscopic investigation of metastable charge-density waves in thin flakes of strongly correlated 1T-TaS2
15:10-15:40 Jae Whan Park, Center for Artificial Low Dimensional Electronic Systems, IBS
Emergent Honeycomb Network of Topological Excitations in Correlated Charge Density Wave
15:40-16:00 Coffee Break
16:00-16:30 Yingshuang Fu, School of Physics, Huazhong University of Science & Technology
Charge order in single transition metal chalcogenide nanowire
16:30-17:00 Martin Franz, Institut für Festkörperphysik, Technische Universität Berlin
Self-assembled magic clusters on silicon: Atomic-scale switches, 1D chains, and perfectly ordered 2D arrays
17:00-17:30 Norbert Esser, Leibniz-Institut für Analytische Wissenschaften – ISAS – e.V.
Structural phase transitions in nanowires: Analysis of In/Si(111) and Au/Si(553) by Raman Spectroscopy
17:30-18:30 Poster session
18:30-20:30 Dinner
Time August 28 (Wed)
09:00-09:40 Keynote_Katharina J. Franke, Freie Universität Berlin, Germany
Yu-Shiba-Rusinov states in single atoms, dimers and chains on superconductors
09:40-10:10 Deung-Jang Choi, Centro de Física de Materiales
Tunneling spectroscopy of supported spin chains
10:10-10:30 Coffee Break
10:30-11:00 Andreas Heinrich, Center for Quantum Nanoscience, IBS
Quantum Nanoscience : Atoms on Surfaces
11:00-11:30 Wolf-Dieter Schneider, Ecole Polytechnique Federale de Lausanne (EPFL)
Sensing the spin of a spectroscopically dark Ce adatom with a scanning tunneling microscope
12:00-13:30 Lunch
13:30-14:00 Michael Horn-von Hoegen, Department of Physics, Duisburg-Essen University
Structural Dynamics in Atomic Wire Systems studied by ultrafast-RHEED: excitation, metastable states and relaxation
14:00-14:30 Herbert Pfnür, Institut für Festkörperphysik, Leibniz Universität Hannover
Plasmon spectroscopy: how close to 1D are atomic wires on surfaces?
14:30-15:00 Wolf Gero Schmidt, Faculty of Science, Universität Paderborn
Coupling of electronic and atomic degrees of freedom in quasi-1D systems from first-principles calculations
15:00-15:30 Daniel Sánchez-Portal, Centro de Física de Materiales CSIC-UPV/EHU
Electronic transport along dimer rows in Ge(001)-c(4×2) from two-probe scanning tunneling spectroscopy: experiment and theory
15:30-15:50 Coffee Break
15:50-16:20 Simone Sanna, Institut für Theoretische Physik, Justus-Liebig-Universität Gießen
Modeling spectroscopic signatures of low dimensional nanostructures from first principles
16:20-16:50 Mariusz Krawiec, Institute of Physics, Maria Curie-Sklodowska Univ.
Emergent Dirac fermions in Si-Au heterostructures
16:50-17:20 J. Ahn, Sungkyunkwan Univ.
Dirac electrons in a dodecagonal graphene quasicrystal
Time August 29 (Thur)
09:00-17:00 Tour


Katharina J. Franke, Freie Universität Berlin, Germany
Peter Liljeroth, Aalto Univ. School of Science, Finland
Thomas Michely, Univ. of Cologne, Germany
Tristan Cren, Sorbonne Université, France


LAHAN Hotel Pohang (Former, Best Western Pohang Hotel)

Address : 265 Samho-ro 1 (367 Duho-dong), Buk-gu, Pohang-si, Gyeongbuk, Korea
Tel : +82-54-230-7000


By train

The KTX high-speed trains connect Pohang Station with Incheon Int’l Airport (ICN) or Seoul Station. It takes about 3 hours 20 minutes from Incheon Int’l Airport (only one KTX train departing at 12:07) to Pohang Station and about 2 hours 20 minutes from Seoul Station (KTX trains departing at 05:45, 06:50, 08:40, 09:45, 13:00, 14:35, 16:10, 16:55, 19:10, 22:10) to Pohang Station. It is advised to book your ticket in advance. (Tickets can be booked up to one month in advance.)

Airport Railroad Express (AREX) trains and subway trains connect Incheon Int’l Airport and Seoul Station which takes about 45~60 minutes.

By bus

Express buses connect Pohang Intercity Bus Terminal with Incheon Int’l Airport (ICN). Buses depart from Incheon Int’l Airport bus stop number 11 (located on 1st floor) at 7:00, 8:50, 11:40, 13:30, 15:30 and 21:30 / number 2 (located at the transportation center basement) at 6:40, 08:30, 11:20, 13:10, 15:10 and 21:10 and it takes about 5 hours. (Please click Gyeongsang →Gyeonju/Pohang)

By airplane

Korean Air, Asiana Airlines and Air Busan operates flights between Gimpo Int’l Airport (GMP) and Gimhae Int’l Airport (PUS) which takes about 55 minutes. Limousine buses and subway trains are operated between Incheon Int’l Airport (ICN) and Gimpo Int’l Airport (GMP) and it takes about 1 hour.

Cross-country Limousine buses connect Pohang Intercity Bus Terminal with Gimhae Int’l Airport (PUS). Buses depart from domestic terminal at 07:05, 07:35, 08:35, 10:35, 11:35, 12:35, 13:35, 14:35, 15:35, 16:35, 17:35, 16:35, 17:35, 18:35, 19:35, 20:45, and 22:05 and it takes about 2 hours.
By taxi

20-minute ride from Pohang Intercity Bus Terminal (Approximate Fare: KRW 10,000)

20-minute ride from Pohang Station (Approximate Fare: KRW 10,000)

By bus

Take bus no. 200, and 700 in front of the Intercity Bus Terminal and get off at Duho-dong Community Service Center stop.


LAHAN Hotel Pohang (Former, Best Western Pohang Hotel)

265 Samho-ro 1 (367 Duho-dong), Buk-gu, Pohang-si, Gyeongbuk, Korea
Tel : +82-54-230-7000


  • 93, Haean-ro, Buk-gu, Pohang, South Korea

Contact Information

To the conference site

  • About 10 min by walk
  • About 3 min by Taxi Fare 3,300 KRW


  • 89, Haean-ro, Buk-gu, Pohang, South Korea

Contact Information

  • Tel. +82-54-242-3355

To the conference site

  • About 10 min by walk
  • About 3 min by Taxi Fare 3,300 KRW


  • 6, Jukpa-ro, Buk-gu, Buk-gu, Pohang, South Korea

Contact Information

To the conference site

  • About 29 min by Bus

(Bus 200 Jukdo Police Substation → Duhodong Community Service Center Station)

  • About 13 min by Taxi Fare 5,700 KRW


Yangdong Village, Gyeongju

 Yangdong Village was designated as a state-designated cultural property on December 20, 1984. It is one of the largest traditional folk villages in Korea which has a long history and unique valuable in the preservation, viewing and historical content of traditional culture over 500 years.

Daereungwon Tumuli Park Belt (Cheonmachong)

 In Daereungwon Tumuli Park Belt are located tombs and burial places of high personages including kings, queens, and nobility.  When the tombs were excavated, rare and precious artifacts were  discovered, including the Geumgwan Gold Crown, the Cheonmado Heavenly Horse painting, glass drinking vessels, and a variety of earthenware, displaying the essence of Silla culture as well as the era’s way of life.

Pohang Accelerator Laboratory

 Pohang Light Source (PLS) is the nation’s one and only synchrotron light source and functions as a major pathway for Korea’s revolutionized future science. As a national user facility, the PLS is owned and operated by the Pohang Accelerator Laboratory (PAL) and POSTECH on behalf of the Korean Government. The PLS has begun initial service with two beamlines in 1995 and has been attracting thousands of users from home and abroad since then.


Online Registration Closing Date : Wednesday, July 31

The abstract submission deadline is Wednesday, July 31.
Presenters should print and poster to the conference site.
The poster size should be 800mm(W) x 1200mm(H).