8.2k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Asia Pacific Center for Theoretical PhysicsKR600 papers
- Institute for Basic ScienceKR238 papers
- Seoul National UniversityKR166 papers
- Korea Institute for Advanced StudyKR138 papers
- Korea Advanced Institute of Science and TechnologyKR103 papers
- Pohang Accelerator Laboratory91 papers
- Rutgers, The State University of New JerseyUS74 papers
- Lawrence Berkeley National LaboratoryUS67 papers
- Yonsei UniversityKR60 papers
- Korea UniversityKR57 papers
- Pusan National UniversityKR57 papers
- Sungkyunkwan UniversityKR57 papers
14 papers · 1 filter
Spin Fluctuation and Persistent Current in a Mesoscopic Ring Coupled to a Quantum Dot
Sam Young Cho, Kicheon Kang, Chul Koo Kim +1
We investigate the persistent current influenced by the spin fluctuations in a mesoscopic ring weakly coupled to a quantum dot. It is shown that the Kondo effect gives rise to some…
Synthesis and characterization of the infinite-layer superconductor Sr_{0.9}La_{0.1}CuO_{2}
C. U. Jung, J. Y. Kim, Mun-Seog Kim +3
We report the high-pressure synthesis of the electron-doped infinite-layer superconductor Sr_{0.9}La_{0.1}CuO_{2}. A Rietveld analysis using X-ray powder diffraction data showed th…
Two-Dimensional Nature of Four-Layer Superconductors by Inequivalent Hole Distribution
Mun-Seog Kim, C. U. Jung, Sung-Ik Lee +1
The magnetization of the four-layer superconductor CuBa_{2}Ca_{3}Cu_4O_{12-δ} with T_c\simeq117 K is presented. The high-field magnetization around T_c(H) follows the exact two-dim…
RF System Upgrades to the Advanced Photon Source Linear Accelerator in Support of the Fel Operation
T. L. Smith, M. H. Cho, A. E. Grelick +3
The S-band linear accelerator, which was built to be the source of particles and the front end of the Advanced Photon Source injector, is now also being used to support a low-energ…
Pulsed Neutron Source using 100-MeV electron Linac at Pohang Accelerator Laboratory
G. N. Kim, H. S. Kang, Y. S. Lee +3
The Pohang Accelerator Laboratory operates an electron linac for the pulsed neutron source as one of the long-term nuclear R&D programs at the Korea Atomic Energy Research Institut…
2.856-GHz Modulation of Conventional Triode Electron Gun
S. J. Park, J. S. Oh, J. S. Bak +2
For the generation of picosecond (< 100 ps) electron beam pulses, we studied the RF modulation of a conventional triode electron gun. The feasibility study for this scheme has been…
Multiphase segregation and metal-insulator transition in single crystal La(5/8-y)Pr(y)Ca(3/8)MnO3
V. Kiryukhin, B. G. Kim, V. Podzorov +5
The insulator-metal transition in single crystal La(5/8-y)Pr(y)Ca(3/8)MnO3 with y=0.35 was studied using synchrotron x-ray diffraction, electric resistivity, magnetic susceptibilit…
The Earth Regeneration Effect of Solar Neutrinos: a Numerical Treatment with Three Active Neutrino Flavors
Jai Sam Kim, Kyungsoo Lee
We introduce an integrated algorithm for full scale investigation of the earth regeneration effect of solar neutrinos with all three active neutrinos. We illustrate that the earth…
Charge and Orbital Ordering and Spin State Transition Driven by Structural Distortion in YBaCo_2O_5
S. K. Kwon, B. I. Min
We have investigated electronic structures of antiferromagnetic YBaCo_2O_5 using the local spin-density approximation (LSDA) + U method. The charge and orbital ordered insulating g…
The connectedness of the moduli space of maps to homogeneous spaces
B. Kim, R. Pandharipande
We prove the connectedness of the moduli space of maps (of fixed genus and homology class) to the homogeneous space G/P by degeneration via the maximal torus action. In the genus 0…
Unquenched large orbital magnetic moment in NiO
S. K. Kwon, B. I. Min
Magnetic properties of NiO are investigated by incorporating the spin-orbit interaction in the LSDA+U scheme. It is found that the large part of orbital moment remains unquenched i…
The resistance anomaly in the surface layer of BiSrCaCuO single crystals under radio-frequency irradiation
Nam Kim, Hyun-Sik Chang, Hu-Jong Lee +1
We observed that radio-frequency (rf) irradiation significantly enhances the -axis resistance near and below the superconducting transition of the CuO layer in contact wit…
Holon Pairing Instability based on the Bethe-Salpeter Equation obtained from the t-J Hamiltonians of both U(1) and SU(2) Slave-boson Symmetries
Sung-Sik Lee, Sung-Ho Suck Salk
We investigate a possibility of holon pairing for bose condensation based on the Bethe-Salpeter equation obtained from the use of the t-J Hamiltonians of both t he U(1) and SU(2) s…
Itinerant ferromagnetism in half-metallic CoS_2
S. K. Kwon, S. J. Youn, B. I. Min
We have investigated electronic and magnetic properties of the pyrite-type CoS_2 using the linearized muffin-tin orbital (LMTO) band method. We have obtained the ferromagnetic grou…