대학원소개

교수진

구현철

세부전공

2018

Sung Jong Kim, Seung-Woo Lee, Jin Dong Song, Young-Wan Kwon, Kyung-Jin Lee, and Hyun Cheol Koo, “An InSb-based magnetoresistive biosensor using Fe3O4 nanoparticles,” Sensors and Actuators B: Chemical 255, 2894 (2018).
Joo-hyeon Lee, Hyung-jun Kim, Joonyeon Chang, Suk Hee Han, Hyun Cheol Koo, Shehrin Sayed, Seokmin Hong, and Supriyo Datta, “Multi-terminal spin valve in a strong Rashba channel exhibiting three resistance states,” Scientific Reports 8, 3397
Seonghoon Woo, Kyung Mee Song, Xichao Zhang, Yan Zhou, Motohiko Ezawa, Xiaoxi Liu, Simone Finizio, Jörg Raabe, Nyun Jong Lee, Sang-Il Kim, Seung-Young Park, Younghak Kim, Jae-Young Kim, Dongjoon Lee, OukJae Lee, Jun Woo Choi, Byoung-Chul Min, Hyun Cheol Koo, and Joonyeon Chang, “Current-driven dynamics and inhibition of the skyrmion Hall effect of ferrimagnetic skyrmions in GdFeCo films,” Nature Communications 9, 959
Seonghoon Woo, Kyung Mee Song, Xichao Zhang, Motohiko Ezawa , Yan Zhou, Xiaoxi Liu, Markus Weigand, Simone Finizio, Jörg Raabe, Min-Chul Park, Ki-Young Lee, Jun Woo Choi1, Byoung-Chul Min, Hyun Cheol Koo, and Joonyeon Chang, “Deterministic creation and deletion of a single magnetic skyrmion observed by direct time-resolved X-ray microscopy,” Nature Electronics 1, 288
JongHyuk Kim, DongJoon Lee, Kyung-Jin Lee, Byeong-Kwon Ju, Hyun Cheol Koo, Byoung-Chul Min, and OukJae Lee, “Spin-orbit torques associated with ferrimagnetic order in Pt/GdFeCo/MgO layers,” Scientific Reports 8, 6017

2017

Tae-Eon Park, Youn Ho Park, Jong-Min Lee, Sung Wook Kim, Hee Gyum Park, Byoung-Chul Min, Hyung-jun Kim, Hyun Cheol Koo, Heon-Jin Choi, Suk Hee Han, Mark Johnson, and Joonyeon Chang, “Large spin accumulation and crystallographic dependence of spin transport in single crystal gallium nitride nanowires,” Nature Communications 8, 15722
Seonghoon Woo, Kyung Mee Song, Hee-Sung Han, Min-Seung Jung, Mi-Young Im, Ki-Suk Lee, Kun Soo Song, Peter Fischer, Jung-Il Hong, Jun Woo Choi, Byoung-Chul Min, Hyun Cheol Koo, and Joonyeon Chang, "Spin-orbit torque-driven skyrmion dynamics revealed by time-resolved X-ray microscopy," Nature Communications 8, 15573
Youn Ho Park, Jun Woo Choi, Hyung-jun Kim, Joonyeon Chang, Suk Hee Han, Heon-Jin Choi, and Hyun Cheol Koo, “Complementary spin transistor using a quantum well channel,” Scientific Reports 7, 46671
Mi-Jin Jin, Seon Young Moon, Jungmin Park, Vijayakumar Modepalli, Junhyeon Jo, Shin-Ik Kim, Hyun Cheol Koo, Byoung-Chul Min, Hyun-Woo Lee, Seung-Hyub Baek, and Jung-Woo Yoo “Non-Local Spin Diffusion Driven by Giant Spin Hall Effect at Oxide Heterointerfaces,” Nano Letters 17, 36

2016

Kwang-Chon Kim, Joohwi Lee, Byung Kyu Kim, Won Young Choi, Hye Jung Chang, Sung Ok Won, Beomjin Kwon, Seong Keun Kim, Dow-Bin Hyun, Hyun Jae Kim, Hyun Cheol Koo, Jung-Hae Choi, Dong-Ik Kim, Jin-Sang Kim, and Seung-Hyub Baek, “Free-electron Creation at the 60° Twin Boundary in Bi2Te3,” Nature Communications 7, 12449
Song Hyeon Nam, Tae-Eon Park, Youn Ho Park, Hae-In Ihm, Hyun Cheol Koo, Hyung-jun Kim, Suk Hee Han, and Joonyeon Chang, “Spin accumulation at in-situ grown Fe/GaAs(100) Schottky barriers measured using the three- and four-terminal methods,” Appl. Phys. Lett. 109, 122409

2015

Won Young Choi, Hyung-jun Kim, Joonyeon Chang, Suk Hee Han, Hyun Cheol Koo, and Mark Johnson, "Electrical detection of coherent spin precession using the ballistic intrinsic spin Hall effect," Nature Nanotechnology 10, 666
A. Manchon, H. C. Koo, J. Nitta, S. M. Frolov, and R. A. Duine, "New Perspectives for Rashba Spin-Orbit Coupling," Nature Materials 14, 871

2013

Youn Ho Park, Hyung-jun Kim, Joonyeon Chang, Suk Hee Han, Jonghwa Eom, Heon-Jin Choi, Hyun Cheol Koo, "Separation of Rashba and Dresselhaus spin-orbit Interactions using crystal direction dependent transport measurements," Appl. Phys. Lett. 103, 252407
Kyung-Ho Kim, Doo-Seung Um, Hochan Lee, Seongdong Lim, Joonyeon Chang, Hyun Cheol Koo, Min-Wook Oh, Hyunhyub Ko, and Hyung-jun Kim, "Gate-Controlled Spin-Orbit Interaction in InAs High-Electron Mobility Transistor Layers Epitaxially Transferred onto Si Substrates," ACS Nano 7, 9106
Joohyung Bae, Kyung-Ho Kim, Jung-Min Han, Hyun Cheol Koo, Byoung-Chul Min, Hyung-jun Kim, Joonyeon Chang, Suk Hee Han and Sang Ho Lim, "Transport of perpendicular spin in a semiconductor channel via a fully electrical method," Appl. Phys. Lett. 102, 062412

2012

Sunghun Lee, Juneho In, Youngdong Yoo, Younghun Jo, Yun Chang Park, Hyung-jun Kim, Hyun Cheol Koo, Jinhee Kim, Bongsoo Kim, and Kang L. Wang, "Single Crystalline β-Ag2Te Nanowire as a New Topological Insulator," Nano Letters 12, 4194

2011

Tae Young Lee, Joonyeon Chang, Mark C. Hickey, Hyun Cheol Koo, Hyung-jun Kim, Suk Hee Han,and Jagadeesh S. Moodera, "Quantum well thickness dependence of Rashba spin-orbit coupling in the InAs/InGaAs heterostructure," Appl. Phys. Lett. 98, 202504

2010

Kyung-Ho Kim, Hyung-jun Kim, Hyun Cheol Koo, Joonyeon Chang, and Suk-Hee Han, "Spin-orbit coupling in double-sided doped InAs quantum well structures," Appl. Phys. Lett. 97, 012504

2009

Hyun Cheol Koo, Jae Hyun Kwon, Jonghwa Eom, Joonyeon Chang, Suk Hee Han, and Mark Johnson, "Control of spin precession in a spin-injected field effect transistor," Science 325, 1515

2007

Jae Hyun Kwon, Hyun Cheol Koo, Joonyeon Chang, Suk-Hee Han, and Jonghwa Eom, "Channel Width Effect on the Spin-Orbit Interaction Parameter in a Two-Dimensional Electron Gas," Appl. Phys. Lett. 90, 112505
Hyun Cheol Koo, Hyunjung Yi, Jae-Beom Ko, Joonyeon Chang, Suk-Hee Han, Donghwa Jung, Seon-Gu Huh, and Jonghwa Eom, "Electrical spin injection and detection in an InAs quantum well" Appl. Phys. Lett. 90, 022101