Zobrazeno 1 - 10
of 818
pro vyhledávání: '"Park, W. K."'
Autor:
Kann, D. A., White, N. E., Ghirlanda, G., Oates, S. R., Melandri, A., Jelinek, M., Postigo, A. de Ugarte, Levan, A. J., Martin-Carrillo, A., Paek, G. S. -H., Izzo, L., Blazek, M., Thone, C., Fernandez, J. F. Agui, Salvaterra, R., Tanvir, N. R., Chang, T. -C., O'Brien, P., Rossi, A., Perley, D. A., Im, M., Malesani, D. B., Antonelli, A., Covino, S., Choi, C., D'Avanzo, P., D'Elia, V., Dichiara, S., Fausey, H. M., Fugazza, D., Gomboc, A., Gorski, K. M., Granot, J., Guidorzi, C., Hanlon, L., Hartmann, D. H., Hudec, R., Jun, H. D., Kim, J., Kim, Y., Klose, S., Kluzniak, W., Kobayashi, S., Kouveliotou, C., Lidz, A., Marongiu, M., Martone, R., Meintjes, P., Mundell, C. G., Murphy, D., Nalewajko, K., Park, W. -K., Sz'ecsi, D., Smith, R. J., Stecklum, B., Steele, I. A., Strobl, J., Sung, H. -I, Updike, A., Urata, Y., van der Horst, A. J.
Publikováno v:
A&A 686, A56 (2024)
Gamma-ray bursts (GRBs) are ideal probes of the Universe at high redshift (z > 5), pinpointing the locations of the earliest star-forming galaxies and providing bright backlights that can be used to spectrally fingerprint the intergalactic medium and
Externí odkaz:
http://arxiv.org/abs/2403.00101
Autor:
Gupta, A., Weiser, A., Greene, L. H., Pressley, L., Luo, Y., Lygouras, C., Trowbridge, J., Phelan, W. A., Broholm, C. L., McQueen, T., Park, W. K.
Planar tunneling spectroscopy of the Kondo insulator SmB$_6$ suggests that an interaction between the surface Dirac fermions and the bulk spin excitons results in incompletely protected topological surface states. To gain further insight into their t
Externí odkaz:
http://arxiv.org/abs/2301.03642
Autor:
Shrestha, K., Zhang, S., Greene, L. H., Lai, Y., Baumbach, R. E., Sasmal, K., Maple, M. B., Park, W. K.
Publikováno v:
Phys. Rev. B 103, 224515 (2021)
The microscopic mechanism for electron pairing in heavy-fermion superconductors remains a major challenge in quantum materials. Some form of magnetic mediation is widely accepted with spin fluctuations as a prime candidate. A novel mechanism, 'compos
Externí odkaz:
http://arxiv.org/abs/2106.07678
Autor:
Park, W. K., Sittler, J. A., Greene, L. H., Fuhrman, W. T., Chamorro, J. R., Koohpayeh, S. M., Phelan, W. A., McQueen, T. M.
Publikováno v:
Phys. Rev B 103, 155125 (2021)
The true topological nature of the Kondo insulator SmB$_6$ remains to be unveiled. Our previous tunneling study not only found evidence for the existence of surface Dirac fermions, but it also uncovered that they inherently interact with the spin exc
Externí odkaz:
http://arxiv.org/abs/2104.07178
Autor:
Zhang, S., Chappell, G., Pouse, N., Baumbach, R. E., Maple, M. B., Greene, L. H., Park, W. K.
We address two long-standing questions regarding the hidden order in URu2Si2: Is it associated with the hybridization process, and what are the distinct roles played by the localized and itinerant electrons? Our quasiparticle scattering spectroscopy
Externí odkaz:
http://arxiv.org/abs/2007.12235
Autor:
Onishi, Y., Sano, K., Matsuura, S., Jeong, W. -S., Pyo, J., Kim, I. -J., Seo, H. J., Han, W., Lee, D. -H., Moon, B., Park, W. -K., Park, Y., Kim, M. G., Matsumoto, T., Matsuhara, H., Nakagawa, T., Tsumura, K., Shirahata, M., Arai, T., Ienaka, N.
We report near-infrared (IR) observations of high Galactic latitude clouds to investigate diffuse Galactic light (DGL), which is starlight scattered by interstellar dust grains. The observations were performed at $1.1$ and $1.6\,\rm{\mu m}$ with a wi
Externí odkaz:
http://arxiv.org/abs/1806.08891
Publikováno v:
Phys. Rev. B 95, 195129 (2017)
Several technical issues and challenges are identified and investigated for the planar tunneling spectroscopy of the topological Kondo insulator SmB$_6$. Contrasting behaviors of the tunnel junctions prepared in two different ways are analyzed and ex
Externí odkaz:
http://arxiv.org/abs/1706.08193
Autor:
Jaggi, N. K., Mehio, O., Dwyer, M., Greene, L. H., Baumbach, R. E., Tobash, P. H., Bauer, E. D., Thompson, J. D., Park, W. K.
Publikováno v:
Phys. Rev. B 95, 165123 (2017)
We present results from point-contact spectroscopy of the antiferromagnetic heavy-fermion superconductor UPd$_2$Al$_3$: conductance spectra are taken from single crystals with two major surface orientations as a function of temperature and magnetic f
Externí odkaz:
http://arxiv.org/abs/1610.08601
Publikováno v:
Rev. Sci. Instrum. 87, 063903 (2016)
The design and realization of a cryogenic rig for point-contact spectroscopy measurements in the needle-anvil configuration is presented. Thanks to the use of two piezoelectric nano-positioners, the tip can move along the vertical ($z$) and horizonta
Externí odkaz:
http://arxiv.org/abs/1606.04024
Autor:
Kim, J. -W., Im, M., Lee, S. -K., Edge, A. C., Hyun, M., Kim, D., Choi, C., Hong, J., Jeon, Y., Jun, H. D., Karouzos, M., Kim, J. H., Kim, Y., Park, W. -K., Taak, Y. C., Yoon, Y.
The $\Lambda$CDM cosmological model successfully reproduces many aspects of the galaxy and structure formation of the universe. However, the growth of large-scale structures (LSSs) in the early universe is not well tested yet with observational data.
Externí odkaz:
http://arxiv.org/abs/1604.03254