Andrew Robson, Amanda Andrews, Alyn Shipton, Matthew Syed, Bel Mooney, Miranda McLachlan, Ann Treneman Political Sketch, Tom Baldwin and Richard Beeston, Alexandra Frean, Greg Hurst Political Correspondent, Dr Simon Poole, Magnus Linklater, Jenny Forbes, James Harding, Peter Lansley, Mark Souster, Madonna Ritchle, David Rose, David Blunkett, Alexandra Frean Education Editor, Michael Evans Defence Editor, Mark Souster and John Hopkins, Philip Howard, Carol Midgley, Hilary Finch, Christine Seib, Ruth Barnett, David Chater, Ben Hoyle Arts Reporter, Rachel Campbell-Johnston, James Bone, James Ducker, Rhema Onumonu, Rosalind Renshaw, Carl Mortished, Will Pavia, Monica Gould, , James Hider, Kevin Eason, Lucy Bannerman, Joe Joseph, Martin Fletcher, Ben Webster Transport Correspondent, Valerie Elliott Countryside Editor, Rob Crilly, Donald Hutera, Sarah Vine and Carol Midgley, Anthony Browne Chief Political Correspondent and Lewis Smith Environment Reporter, Steve Bird, Martin Dreier Director, James Doran Wall Street Correspondent, Stephen Caney, Daniel Finkelstein, Toby Moore, Dan Sabbagh, Inga Lewenhupt Director, Richard Ford Home Correspondent, Alan Hamilton, David Sharrock Ireland Correspondent, Phil Gordon, Matt Dickinson Chief Football Correspondent, A. Thomas, Liz Chong, David Charter, Edward Gorman, Hugo Rifkind, Angela Jameson, Russell Kempson, Thomas Trabitsch Director, Michael. R. Gordon, Gary Duncan Economics Editor, Oliver Kay, Sarah Vine, Lisa Armstrong, Mark Henderson Science Editor, Patrick Hosking Banking and Finance Editor, John Westerby, Stephen Burgen, Sam Coates, Jacky Spragg, David Robertson Business Correspondent, John Hopkins Golf Correspondent, Rob Wright, Annie Kalu, David Watts, Martin Samuel, Brian P. Moss, Raymond Keene, Ian Evans, Gary Duncan and Liz Chong, Peter Riddell Political Briefing, Matt Hughes, Richard Ford and Stewart Tendler, Christine Buckley Industrial Editor, Kaveh Solhekol, Tim Worstall, Jeremy Page, Chris Campling, Fran Yeoman, Andrew Pierce and Richard Ford, Helen Nugent, Richard Owen, Damian Whitworth, Keith Shearer, Maciej Nowak Director, Gabriel Rozenberg Economics Reporter, Nick Hasell, Matthew Syed and Andy Miah, Carolyn Asome, Paul Simons, Nick Szczepanik, Nell Harman Tennis Correspondent, Dominic Kennedy, Anne Ashworth, Louis Cohen, Jonathan Clayton, Renata Rubnikowicz, Richard Ford, Andrew Pierce and Philip Webster, Anthony Browne Chief Political Correspondent, Dileep Premachandran, Russell Jenkins, Neil Fisher, Marion Judd, John Pincham, Michael Gove, Tricia David, Philip Webster, Elizabeth Judge and Dan Sabbagh, David Sinclair, Lewis Smith Environment Reporter, Lisa Verrico, James Jackson, Benedict Nightingale, Lydia Hislop, John Cridland, Bill Edgar, Claudia Blank Director, Joanna Impey, Alice Miles, Tony Halpin, Michael Evans, Bruce Shaxson, Alan Lee Racing Correspondent, Catherine Quinn, David Wright, Dr Richard Buggs, Joe Bolger, Christopher Irvine, Sir Roland Jackson,
... Steely showman sets his sights on global domination Lee Soo-Man says Asia can be the world's biggest ...
2006 - Gale Group | TDA
... for SME, which was directed by charismatic owner Lee Soo‐man, JYPE and YGE were run like a kind ...
Tópico(s): Migration, Ethnicity, and Economy
2009 - Routledge | Inter-Asia Cultural Studies
Mahdi Jamali, Jae Hyun Kwon, Soo-Man Seo, Kyung‐Jin Lee, Hyunsoo Yang,
The utilization of spin waves as eigenmodes of the magnetization dynamics for information processing and communication has been widely explored recently due to its high operational speed with low power consumption and possible applications for quantum computations. Previous proposals of spin wave Mach-Zehnder devices were based on the spin wave phase, a delicate entity which can be easily disrupted. Here, we propose a complete logic system based on the spin wave amplitude utilizing the nonreciprocal ...
Tópico(s): Physics of Superconductivity and Magnetism
2013 - Nature Portfolio | Scientific Reports
Jung‐Hwan Moon, Soo-Man Seo, Kyung‐Jin Lee, Kyoung‐Whan Kim, Jisu Ryu, Hyun‐Woo Lee, R. D. McMichael, M. D. Stiles,
In ferromagnetic thin films, broken inversion symmetry and spin-orbit coupling give rise to interfacial Dzyaloshinskii-Moriya interactions. Analytic expressions for spin-wave properties show that the interfacial Dzyaloshinskii-Moriya interaction leads to nonreciprocal spin-wave propagation, i.e., different properties for spin waves propagating in opposite directions. In favorable situations, it can increase the spin-wave attenuation length. Comparing measured spin-wave properties in ferromagnet/ ...
Tópico(s): Copper Interconnects and Reliability
2013 - American Physical Society | Physical Review B
Koji Sekiguchi, K. Yamada, Soo-Man Seo, Kyung‐Jin Lee, Daichi Chiba, Kensuke Kobayashi, Teruo Ono,
The performance of spintronic devices critically depends on three material parameters, namely, the spin polarization in the current ($P$), the intrinsic Gilbert damping ($\ensuremath{\alpha}$), and the coefficient of the nonadiabatic spin transfer torque ($\ensuremath{\beta}$). However, there has been no method to determine these crucial material parameters in a self-contained manner. Here we show that $P$, $\ensuremath{\alpha}$, and $\ensuremath{\beta}$ can be simultaneously determined by performing a single ...
Tópico(s): Advanced Memory and Neural Computing
2012 - American Physical Society | Physical Review Letters
Jisu Ryu, Soo-Man Seo, Kyung‐Jin Lee, Hyun‐Woo Lee,
A current-induced domain wall motion in magnetic nanowires with a strong structural inversion asymmetry [I.M. Miron, T. Moore, H. Szambolics, L.D. Buda-Prejbeanu, S. Auffret, B. Rodmacq, S. Pizzini, J. Vogel, M. Bonfim, A. Schuhl, G. Gaudin, Nat. Mat. 10 (2011) 419] seems to have novel features such as the domain wall motion along the current direction or the delay of the onset of the Walker breakdown. In such a highly asymmetric system, the Rashba spin–orbit coupling (RSOC) may affect a domain wall ...
Tópico(s): Physics of Superconductivity and Magnetism
2011 - Elsevier BV | Journal of Magnetism and Magnetic Materials
Soo-Man Seo, Hyun‐Woo Lee, Hiroshi Kohno, Kyung‐Jin Lee,
A magnetic vortex wall motion driven by propagating spin waves in a nanostrip is investigated by means of micromagnetic simulation. Propagating spin waves can drive a vortex wall into a stream motion in spite of its complex internal spin structure. Compared to the transverse wall, the vortex wall moves faster and its velocity is less sensitive to the spin wave frequency. The amplitude of spin waves changes when passing through the domain wall, closely related to the domain wall velocity. This domain- ...
Tópico(s): Physics of Superconductivity and Magnetism
2011 - American Institute of Physics | Applied Physics Letters
Koji Sekiguchi, K. Yamada, Soo Man Seo, Kyung‐Jin Lee, Daichi Chiba, Kensuke Kobayashi, Teruo Ono,
We report a time-resolved propagating spin wave spectroscopy for Fe19Ni81 film. We show that the amplitude of the spin-wave packet depends on the direction of magnetization and that its phase can be controlled by the polarity of pulsed magnetic field for the excitation. The nonreciprocal emission of spin-wave packet can be utilized for the binary spin-wave input into the spin-wave logic circuit.
Tópico(s): Physics of Superconductivity and Magnetism
2010 - American Institute of Physics | Applied Physics Letters
Soo-Man Seo, Kyung‐Jin Lee, Hyunsoo Yang, Teruo Ono,
The current-induced modification of the attenuation of a propagating spin wave in a magnetic nanowire is studied theoretically and numerically. The attenuation length of spin wave can increase when the spin waves and electrons move in the same direction. It is directly affected by the nonadiabaticity of the spin-transfer torque and thus can be used to estimate the nonadiabaticity. When the nonadiabatic spin torque is sufficiently large, the attenuation length becomes negative, resulting in the amplification ...
Tópico(s): Advanced Memory and Neural Computing
2009 - American Physical Society | Physical Review Letters
Soo-Man Seo, Kyung‐Jin Lee, Woojin Kim, Taek-Dong Lee,
Using micromagnetic simulations, the authors investigate the effects of the shape anisotropy of nanowires on the threshold current density (JC) in the adiabatic limit. It is observed that the type of domain wall significantly affects the dependence of JC on the shape anisotropy. For a transverse wall, JC is proportional to the shape anisotropy, but slightly deviates from the theoretical prediction [G. Tatara and H. Kohno, Phys. Rev. Lett. 92, 086601 (2004)] possibly due to antivortex formation. For ...
Tópico(s): Physics of Superconductivity and Magnetism
2007 - American Institute of Physics | Applied Physics Letters
We investigate current-induced magnetization switching for a multilayer structure that allows a reduced switching current while maintaining high thermal stability of the magnetization. The structure consists of a perpendicular polarizer, a perpendicular free-layer, and an additional free-layer having in-plane magnetization. When the current runs perpendicular to the structure, the in-plane free-layer undergoes a precession and supplies an internal rf field to the perpendicular free-layer, resulting ...
Tópico(s): Magnetic Properties and Applications
2012 - American Institute of Physics | Applied Physics Letters
Siew Ing Yet, Bong Sang Ko, Soo Man Lee, Mike May,
Photo process defect reduction is one of the most important factors to improve the process stability and yield in sub-0.18um DUV process. In this paper, a new approach to minimize the Deep-UV (DUV) Chemically Amplified Resist (CAR) and Bottom Anti-Reflective Coating (BARC) induced defect known as UFO (UnidentiFied Object) defect will be introduced. These defects have mild surface topography difference on BARC; it only exists on the wide exposed area where there is no photoresist pattern. In this test, ...
Tópico(s): Electron and X-Ray Spectroscopy Techniques
2004 - SPIE | Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE
Seong‐Jai Cho, Yoon-Cheol Lee, Hong-Lim Lee, Soo-Man Sim, Masaaki Yanagisawa,
Tópico(s): Aluminum Alloy Microstructure Properties
2003 - Elsevier BV | Journal of the European Ceramic Society
Kyoung‐Whan Kim, Soo Man Seo, Jisu Ryu, Kyung‐Jin Lee, Hyun‐Woo Lee,
Ultrathin magnetic systems have properties qualitatively different from their thicker counterparts, implying that different physics governs their properties. We demonstrate that various such properties can be explained naturally by the Rashba spin-orbit coupling in ultrathin magnetic systems. This work will be valuable for the development of next generation spintronic devices based on ultrathin magnetic systems.
Tópico(s): Surface and Thin Film Phenomena
2012 - American Physical Society | Physical Review B
Soo-Man Seo, Kyung‐Jin Lee, Soon-Wook Jung, Hyun‐Woo Lee,
A full micromagnetic model and a simplified one-dimensional analytical model are used to investigate the domain wall dynamics driven by an oblique magnetic field. Both models show that the Walker breakdown [N. L. Schryer and L. R. Walker, J. Appl. Phys. 45, 5406 (1974)] can occur at two distinct field strengths. However, the two models exhibit an important discrepancy due to the antivortex injection at the Walker field, which is not taken into account in the analytical model. The chirality of the ...
Tópico(s): Theoretical and Computational Physics
2010 - American Institute of Physics | Applied Physics Letters
We conducted a micromagnetic modeling study to investigate the spin torque oscillator (STO) using a perpendicular polarizer. We used an additional layer of negative anisotropy constant materials (NAM) on a conventional STO. For the NAM layer, the magnetic easy plane is parallel to the in-plane easy axis of the free layer, and inhibits the development of the out-of-plane component of the magnetization in the free layer. As a result, this new type of STO provides a high frequency limit up to 50 GHz.
Tópico(s): Advanced Memory and Neural Computing
2008 - The Korean Magnetics Society | Journal of Magnetics
Soo-Man Seo, Kyoung‐Whan Kim, Jisu Ryu, Hyun‐Woo Lee, Kyung‐Jin Lee,
We theoretically study the current-induced dynamics of a transverse magnetic domain wall in bi-layer nanowires consisting of a ferromagnet on top of a nonmagnet having strong spin-orbit coupling. Domain wall dynamics is characterized by two threshold current densities, $J_{th}^{WB}$ and $J_{th}^{REV}$, where $J_{th}^{WB}$ is a threshold for the chirality switching of the domain wall and $J_{th}^{REV}$ is another threshold for the reversed domain wall motion caused by spin Hall effect. Domain walls with ...
Tópico(s): Physics of Superconductivity and Magnetism
2012 - American Institute of Physics | Applied Physics Letters
Soo-Man Lee, Kang-Bok Kim, Hang-Ju Ko, D. C. Oh,
Tópico(s): ZnO doping and properties
2015 - American Scientific Publishers | Journal of Nanoelectronics and Optoelectronics
Kang-Bok Kim, Soo-Man Lee, D. C. Oh, Hang-Ju Ko,
Tópico(s): Ga2O3 and related materials
2015 - Springer Science+Business Media | Journal of the Korean Physical Society
Jung-Hwan Moon, Soo-Man Seo, Kyung‐Jin Lee,
Temporal and spatial variation of magnetization generates an additional damping torque due to spin-motive force. We performed semi-one-dimensional (1-D) and two-dimensional (2-D) micromagnetic simulations to investigate effect of the additional damping on the field-driven transverse wall dynamics in a magnetic nanowire. At the magnetic field above the Walker breakdown field, the additional damping due to the spin-motive force causes an increase of domain wall velocity. In semi-1-D model, the amount ...
Tópico(s): ZnO doping and properties
2010 - IEEE Magnetics Society | IEEE Transactions on Magnetics
Hee Won Lim, Dong Yun Kim, Soo Man Lee, Jung Hyuk An, Jong-Ho Yoon, U–Cheul Shin,
The Korean fenestration energy consumption efficiency rating system only considers thermal performance of the heat transfer coefficient (U-value) and airtightness excluding optical characteristics of the solar heat gain coefficient (SHGC). This study analyzed annual heating and cooling energy requirements on the middle floor of apartment by optical and thermal performance of windows to evaluate the suitability of the rating system. One hundred and twenty-eight windows were analyzed using THERM and ...
Tópico(s): Diverse Academic Research Analysis
2018 - Society of Air-conditioning and Refrigerating Engineers of Korea | Korean Journal of Air-Conditioning and Refrigeration Engineering
Tae-Soo Jang, Kang-Bok Kim, Soo-Man Lee, Hang-Ju Ko, D. C. Oh,
Tópico(s): ZnO doping and properties
2017 - American Scientific Publishers | Journal of Nanoscience and Nanotechnology
Jung Bok Lee, Ji Min Song, Jeoung Eun Lee, Jong Hyuk Park, Sun Jong Kim, Soo Man Kang, Ji Nie Kwon, Moon Kyoo Kim, Sung Il Roh, Hyun Soo Yoon,
Mouse embryonic fibroblasts (MEFs) have been previously used as feeder cells to support the growth of human embryonic stem cells (hESCs). In this study, human adult uterine endometrial cells (hUECs), human adult breast parenchymal cells (hBPCs) and embryonic fibroblasts (hEFs) were tested as feeder cells for supporting the growth of hESCs to prevent the possibility of contamination from animal feeder cells. Cultured hUECs, hBPCs and hEFs were mitotically inactivated and then plated. hESCs (Miz-hES1, NIH ...
Tópico(s): Tissue Engineering and Regenerative Medicine
2004 - Bioscientifica | Reproduction
Wonjoon Kim, Soo-Man Seo, T.D. Lee, Kyung‐Jin Lee,
We studied the effect of Oersted field (HOe) on current-induced domain wall motion (CIDWM) in magnetic nanowires. We found that HOe generates spin waves. Because of interaction between domain wall (DW) and spin wave, time-dependent wall velocity is oscillatory at the early stage of wall motion. The period of the oscillatory DW motion is in antiphase with the period of out-of-plane (OOP) magnetization oscillation inside the DW. The oscillatory wall velocity is suppressed as the thickness of nanowire ...
Tópico(s): ZnO doping and properties
2006 - Elsevier BV | Journal of Magnetism and Magnetic Materials
Soo Man Lee, Dong Yun Kim, Jung Hyuk An, Cheol Seng Lee, U–Cheul Shin,
In this study, we analyzed the annual heating and cooling energy requirements of reference building with 97 certificated windows using TRNSYS 17, to review the applicability of the “Window Energy Consumption Efficiency Rating System” to the office building. The analyzed model was a medium-size office building with lightweight curtain walls and a window-to-wall ratio of 52%. The results are as follow : First, the annual total thermal load was 60,261 to 111,616 kWh and the ratio of heating load to cooling ...
2019 - Society of Air-conditioning and Refrigerating Engineers of Korea | Korean Journal of Air-Conditioning and Refrigeration Engineering
Hang-Ju Ko, Kang-Bok Kim, Soo-Man Lee, Tae-Soo Jang, D. C. Oh,
Tópico(s): Ga2O3 and related materials
2017 - American Scientific Publishers | Journal of Nanoscience and Nanotechnology
Hang-Ju Ko, Kang-Bok Kim, Soo-Man Lee, Tae-Soo Jang, OH Dong‐Cheol,
2017 - American Scientific Publishers | Journal of Nanoscience and Nanotechnology
Soo-Man Lee, Dong-Yun Kim, Jung-Hyuk Ahn, Jae-Yong Eom, U–Cheul Shin,
Purpose: "Building energy design standard" is used to limit the thermal transmittance of building in Korea. However, it only covers the insulation standard for each appropriate elements of a building, not the thermal performance of Junction thermal bridge of windows and doors installed in wall. Therefore in this study, we have evaluated the thermal performance of Junction thermal bridge depending on installation method and position of windows and provide it as design data. Method: We analyzed heat ...
2017 - | KIEAE Journal
Tópico(s): Surface and Thin Film Phenomena
2016 - ASIAN PUBLICATION CORPORATION | Asian Journal of Chemistry
Tópico(s): Nonlinear Optical Materials Research
2016 - ASIAN PUBLICATION CORPORATION | Asian Journal of Chemistry