Welcome !
Nanomagnetism & Spintronics Lab
충북대학교 나노자성 및 스핀트로닉스 연구실

Dong-Hyun Kim


Associate Professor
Department of Physics, Chungbuk National University, Cheongju 361-763, Chungbuk,
Republic of Korea
Tel) +82-42-2268, Email) donghyun@cbnu.ac.kr


RESEARCH INTERESTS


SELECTED PUBLICATIONS


  1. In-Joon Jeon, Dong-Wook Kang, Dong-Eon Kim, Dong-Hyun Kim, Sug-Bong Choe, and Sung-Chul Shin, "Control of a magnetic anisotropy of Co/Pt nano-multilayer with particles being embedded", Adv. Mater. 14, 1116 (2002).
    DOI : 10.1002/1521-4095(20020816)14:16<1116::AID-ADMA1116>3.0.CO;2-C

  2. Dong-Hyun Kim, Sug-Bong Choe, and Sung-Chul Shin, "Direct Observation of Barkhausen Avalanche in Co Thin Films", Phys. Rev. Lett. 90, 87203 (2003).
    DOI : 10.1103/PhysRevLett.90.087203

  3. Dong-Hyun Kim, Sug-Bong Choe, Yoon-Chul Cho, and Sung-Chul Shin, "Correlation between fractal dimension and reversal behavior of magnetic domain in Co/Pd nanomultilayers", Appl. Phys. Lett. 82, 3698 (2003).
    DOI : 10.1063/1.1578185

  4. J.-S. Lee, K.-B. Lee, Y. J. Park, T. G. Kim, J. H. Song, J. Lee, K. Jeong, D.-H. Kim, and S.-C. Shin, “Modification of interface magnetic anisotropy by ion-irradiation on epitaxial Cu/Ni/Cu(002)/Si(100) films”, Phys. Rev. B 69, 172405 (2004).
    DOI : 10.1103/PhysRevB.69.172405

  5. Kwang-Su Ryu, Dong-Hyun Kim, Sung-Chul Shin, Hiro Akinaga, "Real-time direct observation of asymmetric magnetization reversal in exchange-biased single-layer systems", Phys. Rev. B 71, 155308 (2005).
    DOI : 10.1103/PhysRevB.71.155308

  6. Mi-Young Im, Dong-Hyun Kim, and Sung-Chul Shin, "Transition from symmetric to asymmetric local coercivity distribution in CoCrPt alloy films", Phys. Rev. B 72 132416 (2005).
    DOI : 10.1103/PhysRevB.72.132416

  7. Dong-Hyun Kim, Bosun Kang, Weilun Chao, Peter Fischer, Erik Anderson, Sug-Bong Choe, Mi-Young Im, and Sung-Chul Shin, "Direct Spatial-temporal Observation of Barkhausen Avalanche in Low Dimensional Ferromagnetic System (Invited)", Proc. SPIE 5843, 40 (2005).
    DOI : 10.1117/12.609637

  8. G. S. Chang, A. Moewes, S. H. Kim, J. Lee, K. Jeong, C. N. Whang, D.-H. Kim, and S.-C. Shin, "Uniaxial in-plane magnetic anisotropy of a CoPt thin film induced by ion irradiation", Appl. Phys. Lett. 88, 092504 (2006).
    DOI : dx.doi.org/10.1063/1.2180867

  9. Dong-Hyun Kim, Peter Fischer, Weilun Chao, Erik Anderson, Sug-Bong Choe, Mi-Young Im, and Sung-Chul Shin, "Magnetic soft X-ray microscopy at 15nm resolution probing nanoscale local magnetic hysteresis (Invited)", J. Appl. Phys. 99, 08H303 (2006).
    DOI : 10.1063/1.2167060

  10. P. Fischer, D.-H. Kim, W. Chao, J. A. Liddle, E. H. Anderson, and D. T. Attwood, "Soft X-ray microscopy of nanomagnetism", Materials Today 9, 23 (2006).
    DOI : 10.1016/S1369-7021(05)71335-3

  11. Guido Meier, Markus Bolte, Rene Eiselt, Benjamin Kraeuger, Dong-Hyun Kim, and Peter Fischer, "Direct Imaging of Stochastic Domain-Wall Motion Driven by Nanosecond Current Pulses", Phys. Rev. Lett. 98, 187202 (2007).
    DOI : 10.1103/PhysRevLett.98.187202

  12. M.-Y. Im, S.-H. Lee, D.-H. Kim, P. Fischer, and S.-C. Shin, "Scaling Behavior of the First Arrival Time of a Random-Walking Magnetic Domain", Phys. Rev. Lett. 100, 167204 (2008).
    DOI : 10.1103/PhysRevLett.100.167204

  13. S. Mangin, T. Hauet, P. Fischer, D.-H. Kim, J.B. Kortright, K. Chesnel, E. Arenholz, and Eric E. Fullerton, "Influence of antiferromagnetic interface exchange coupling in perpendicular anisotropy [Pt /Co]xn/TbFe bilayers", Phys. Rev. B 78, 024424 (2008).
    DOI :

  14. Hong-Guang Piao, Dede Djuhana, Suhk-Kun Oh, Seong-Cho Yu, and Dong-Hyun Kim, "Multi-bits magnetic recording using a ferromagnetic element with shifted vortex core position", Appl. Phys. Lett. 94, 052501 (2009).
    DOI : 10.1063/1.3077024

  15. Jung-Hwan Moon, Dong-Hyun Kim, Myung Hwa Jung, and Kyung-Jin Lee, "Current-Induced Resonant Motion of a Magnetic Vortex Core: Effect of Nonadiabatic Spin Torque", Phys. Rev. B. 79, 134410 (2009).
    DOI : 10.1103/PhysRevB.79.134410

  16. Su-Hyeong Jun, Je-Ho Shim, Suhk-Kun Oh, Seong-Cho Yu, Dong-Hyun Kim, Brooke Mesler, and Peter Fischer, "Nonlinear motion of coupled magnetic vortices in ferromagnetic/non-magnetic/ferromagnetic trilayerlayer", Appl. Phys. Lett. 95, 142509 (2009).
    DOI : 10.1063/1.3243985

  17. Mi-Young Im, Peter Fischer, Dong-Hyun Kim, and Sung-Chul Shin, "Direct observation of individual Barkhausen Avalanches in nucleation-mediated magnetization reversal processocess", Appl. Phys. Lett. 95, 182504 (2009).
    DOI : 10.1063/1.3256188

  18. Sung–Min Ahn, Kyoung-Woong Moon, Dong-Hyun Kim, and Sug–Bong Choe, "Detection of the static and kinetic pinning of domain walls in ferromagnetic nanowires", Appl. Phys. Lett. 95, 152506 (2009).
    DOI : 10.1063/1.3248220

  19. Hyeok-Cheol Choi, Chun-Yeol You, Ki-Yeon Kim, Jeong-Soo Lee, Je-Ho Shim, and Dong-Hyun Kim, "Antiferromagnetic layer thickness dependence of noncollinear uniaxial and unidirectional anisotropies in NiFe/FeMn/CoFe trilayers", Phys. Rev. B 81, 224410 (2010).
    DOI : 10.1103/PhysRevB.81.224410

  20. Dede Djuhana, Hong-Guang Piao, Sang-Hyuk Lee, and Dong-Hyun Kim, Sung-Min Ahn, and Sug-Bong Choe, "Asymmetric ground state spin configuration of transverse domain wall on symmetrically notched ferromagnetic nanowires", Appl. Phys. Lett. 97, 022511 (2010).
    DOI : 10.1063/1.3459965

  21. Hong-Guang Piao, Hyeok-Cheol Choi, Je-Ho Shim, Dong-Hyun Kim, and Chun-Yeol You, "Ratchet effect of the domain wall by asymmetric magnetostatic potentials", Appl. Phys. Lett. 99, 192512 (2011).
    DOI : 10.1063/1.3658805

  22. Je-Ho Shim, Hong-Guang Piao, Sang-Hyuk Lee, Suhk Kun Oh, Seong-Cho Yu, Seung Kee Han, and Dong-Hyun Kim, "Nonlinear motion of magnetic vortex under AC magnetic field : Dynamic correction of a gyrovector and a damping tensor of the Thiele’s equation", Appl. Phys. Lett. 99, 142505 (2011).
    DOI : 10.1063/1.3645595


INVITED TALKS


  1. Sung-Chul Shin, Sug-Bong Choe, and Dong-Hyun Kim, "Domain Reversal Behavior in Ferromagnetic Nanothin Films: Time-Resolved Domain Observation", International Symposium on Advanced Magnetic Materials (Oct. 2002; Halong, Vietnam).

  2. Dong-Hyun Kim, Sug-Bong Choe, and Sung-Chul Shin, "Spin Reversal Dynamics in Ferromagnetic Nanothin Films", Material Science Dept. Seminar, Seoul National University (Feb. 2003, Seoul, Korea).

  3. Sung-Chul Shin, Dong-Hyun Kim, Sug-Bong Choe, Kwang-Su Ryu, H. Akinaga, "Critical scaling behavior of Barkhausen avalanches in ferromagnetic nanothin films", Japan-Korea Symposium on Spintronics and its Applications (Jun. 2003; Pusan, Korea).

  4. Dong-Hyun Kim, Sug-Bong Choe, and Sung-Chul Shin, "Direct Observation of Barkhausen Avalanche in Co Thin Films", 26th Annual Conference of Korean Vacuum Society (Oct. 2003; Chungju, Korea).

  5. Sung-Chul Shin and Dong-Hyun Kim, and Kwang-Su Ryu, "Barkhuasen Avalanches in 2D Ferromagnetic Films", 2003 International Symposium on Advanced Magnetic Technologies (Nov. 2003; Taipei, Taiwan).

  6. Sung-Chul Shin, Dong-Hyun Kim, Sug-Bong Choe, Kwang-Su Ryu, and H. Akinaga, "Barkhausen Avalanches in 2D Ferromagnetic Films", APS March meeting '2004 (Mar. 2004; Montreal, Canada).

  7. Dong-Hyun Kim and Sung-Chul Shin, "Power-Law Scaling Behavior Observed in Ferromagnetic Ultrathin Films via Direct Domain Observation in Real Time", 3rd International Workshop on Surface, Interface, and Thin Film Physics (May. 2004; Shanghai, China).

  8. Dong-Hyun Kim, Bosun Kang, Weilun Chao, Peter Fischer, Erik Anderson, Sug-Bong Choe, Mi-Young Im, and Sung-Chul Shin, "Direct Spatial-temporal Observation of Barkhausen Avalanche in Low Dimensional Ferromagnetic System", SPIE Symposium on Fluctuations and Noise (May 2005; Austin, USA).

  9. P. Fischer, D.-H. Kim, B. Kang, W. Chao and E.H. Anderson, "Soft X-ray microscopy and its application to the study of nanomagnetism", Annual meeting of the Microscopical Society of Canada (May. 2005; Hamilton, Canada).

  10. P. Fischer, D.-H. Kim, B. Kang, E. Anderson, "Recent Achievements with Full-field Soft X-ray Microscopy to Study Magnetic Nanostructures", 8th Intern. Conf. on X-ray microscopy, (Jul. 2005; Himeji, Japan).

  11. Peter Fischer, Dong-Hyun Kim, Weilun Chao, Erik Anderson, Mi-Young Im, Sung-Chul Shin, and Sug-Bong Choe"Magnetic soft X-ray microscopy at 15nm resolution probing nanoscale local magnetic hysteresis", MMM (Oct 2006; San Jose, USA)

  12. Sung-Chul Shin, Kwang-Su Ryu, Dong-Hyun Kim, and Hiro Akinaga, "2D Critical Scaling Behavior of Barkhausen Avalanches", MMM (Jan, 2007; Baltimore, USA).

  13. Guido Meier, Markus Bolte, Rene Eiselt, Benjamin Kraeuger, Dong-Hyun Kim, and Peter Fischer, "X-ray imaging of current driven stochastic domain-wall motion", MMM (Jan, 2007; Baltimore, USA).

  14. Dong-Hyun Kim, Guido Meier, Markus Bolte, Rene Eiselt, Benjamin Kraeuger, and Peter Fischer, "Soft X-ray microscopy of spin torque driven domain-wall motion", Advanced Light Source User Meeting (Oct 2007; Berkeley, USA).