Ho Il Kim

RESEARCH INTEREST

• • Berry phase crossover in Nodal line Semimetal

PUBLICATIONS

1.        “Ultralow electric-field-driven metal-insulator transition in two-dimensional topological nodal-line states of CaAs3”

Hoil Kim, Taesu Park, Gi-Yeop Kim, Ji Eun Lee, Junseong Lee, Hoseong Jeon, Sungyu Park, Seong Jang, Yoshimitsu Kohama, Koichi Kindo, Eun Sang Choi, Youn Jung Jo, Woun Kang, Jaeyoung Kim, Gil-Ho Lee, Jae Hoon Kim, Si-Young Choi, Ji Hoon Shim,  and Jun Sung Kim, In preparation (2025).

2.        "Direct observation of anisotropic Coulomb screening in a topological nodal line semimetal"

Hyo Won Kim, Junseo Jung, Gahee Lee, Tae Su Park, Won-Jun Jang, Hoil Kim, Jun Sung Kim, Ji Hoon Shim, Bohm-Jung Yang, Sangjun Jeon, Advanced Science, 2407437 (2025).

3.        “Optical Transitions of a Single Nodal Ring in SrAs3: Radially and Axially Resolved Characterization”

Jiwon Jeon, Jiho Jang, Hoil Kim, Taesu Park, Dongwook Kim, Soonjae Moon, Jun Sung Kim, Ji Hoon Shim, Hongki Min, and Eunjip Choi, Physical Review Letters 131, 236903 (2023).

4.        “Quantum transport evidence of isolated topological nodal-line fermions”
Hoil Kim, Jong Mok Ok, Seyeong Cha, Bo Gyu Jang, Chang Il Kwon, Yoshimitsu Kohama, Koichi Kindo, Won Joon Cho, Eun Sang Choi, YounJung Jo, Woun Kang, Ji Hoon Shim, Keun Su Kim, and Jun Sung Kim, Nature Communications 13, 7188 (2022).

5.        “Effect of antiferromagnetic order on topological electronic structure in Eu-substituted Bi2Se3 single crystals”

Soo-Whan Kim, Hoil Kim, Jeong-Kyu Kim, Woo-Suk Noh, Jinsu Kim, Kyoung-Min Kim, Ki-Seok Kim, Jun Sung Kim, Jae-Hoon Park, and Myung-Hwa Jung, APL Materials 8, 111108 (2020).

6.        “Electrical detection of spin-polarized current in topological insulator Bi1.5Sb0.5Te1.7Se1.3”

Tae-Ha Hwang, Hong-Seok Kim, Hoil Kim, Jun Sung Kim, and Yong-Joo Doh, Current Applied Physics 19, 917-923 (2019).

7.        “Role of Spin Hall Effect in the Topological Side Surface Conduction”

Jekwan Lee, Sangwan Sim, Soohyun Park, Chihun In, Seungwan Cho, Seungmin Lee, Soonyoung Cha, Sooun Lee, Hoil Kim, Jehyun Kim, Wooyoung Shim, Jun Sung Kim, Dohun Kim, and Hyunyong Choi, ACS Photonics 5, 3347 (2018).

8.        “Access the intrinsic spin transport in topological insulator by controlling the crossover of bulk-to-surface conductance”

Wonhee Ko, Giang D. Nguyen, Hoil Kim, Jun Sung Kim, X.-G. Zhang, and An-Ping Li, Physical Review Letters 121, 176801 (2018).

9.        “Generation, transport, and detection of valley-locked spin photocurrent in WSe2–graphene–Bi2Se3 heterostructures”

Soonyoung Cha, Minji Noh, Je-Hyun Kim, Jangyup Son, Hyemin Bae, Doeon Lee, Hoil Kim, Jekwan Lee, Hoseung Shin, Sangwan Sim, Seunghoon Yang, Chul-Ho Lee, Moon-Ho Jo, Jun Sung Kim, Dohun Kim, and Hyunyong Choi, Nature Nanotechnology 13, 910 (2018).

PRESENTATIONS

FELLOWSHIPS & AWARDS

1. Best graduate student’s research of year award, POSTECH (Feb. 2023)

2. Outstanding oral presentation, Korean Physical Society (Apr. 2019)

3. Outstanding poster presentation, APCTP-Quantum Materials Symposium 2017 in conjunction with 17th Korea-Taiwan-Japan Woekshop on SCES & APW (Feb. 2017)