Zobrazeno 1 - 10
of 991
pro vyhledávání: '"Hennig, R"'
Autor:
Sinha, S., Lim, J., Li, Z., Kim, J. S., Hire, A. C., Dee, P. M., Kumar, R. S., Popov, D., Hemley, R. J., Hennig, R. G., Hirschfeld, P. J., Stewart, G. R., Hamlin, J. J.
The recent surprising discovery of superconductivity with critical temperature $T_c$ = 32 K in MoB$_2$ above 70 GPa has led to the search for related materials that may superconduct at similarly high $T_c$ values and lower pressures. We have studied
Externí odkaz:
http://arxiv.org/abs/2408.17416
Autor:
Lim, J., Sinha, S., Jackson, D. E., Kumar, R. S., Park, C., Hemley, R. J., VanGennep, D., Vohra, Y. K., Hennig, R. G., Hirschfeld, P. J., Stewart, G. R., Hamlin, J. J.
The superconducting and structural properties of elemental strontium metal were investigated under pressures up to 60 GPa while maintaining cryogenic conditions during pressure application. Applying pressure at low temperatures reveals differences in
Externí odkaz:
http://arxiv.org/abs/2408.06128
Autor:
Dee, P. M., Kim, J. S., Hire, A. C., Lim, J., Fanfarillo, L., Sinha, S., Hamlin, J. J., Hennig, R. G., Hirschfeld, P. J., Stewart, G. R.
Publikováno v:
Phys. Rev. B 109, 104520, March 22, 2024
Recent investigations into MoB$_{2}$ have unveiled a direct connection between a pressure-induced structural transition to a P6/mmm space group structure and the emergence of superconductivity, producing critical temperatures up to 32 K at 100 GPa. T
Externí odkaz:
http://arxiv.org/abs/2310.03818
Autor:
Lim, J., Sinha, S., Hire, A. C., Kim, J. S., Dee, P. M., Kumar, R. S., Popov, D., Hemley, R. J., Hennig, R. G., Hirschfeld, P. J., Stewart, G. R., Hamlin, J. J.
Publikováno v:
Phys. Rev. B 108, 094501 (2023)
A recent work has demonstrated that MoB$_2$, transforming to the same structure as MgB$_2$ ($P6/mmm$), superconducts at temperatures above 30 K near 100 GPa [C. Pei $et$ $al$. Natl. Sci. Rev., nwad034 (2023)], and Nb-substitution in MoB$_2$ stabilize
Externí odkaz:
http://arxiv.org/abs/2302.13936
Autor:
Hire, A. C., Sinha, S., Lim, J., Kim, J. S., Dee, P. M., Fanfarillo, L., Hamlin, J. J., Hennig, R. G., Hirschfeld, P. J., Stewart, G. R.
Publikováno v:
Phys. Rev. B 106, 174515, 2022
Recently it was discovered that, under elevated pressures, MoB$_2$ exhibits superconductivity at a critical temperature, $T_c$, as high as 32 K. The superconductivity appears to develop following a pressure-induced structural transition from the ambi
Externí odkaz:
http://arxiv.org/abs/2212.14869
Autor:
Lim, J., Hire, A. C., Quan, Y., Kim, J. S., Xie, S. R., Sinha, S., Kumar, R. S., Popov, D., Park, C., Hemley, R. J., Hamlin, J. J., Hennig, R. G., Hirschfeld, P. J., Stewart, G. R.
High-pressure electrical resistivity measurements reveal that the mechanical deformation of ultra-hard WB2 during compression induces superconductivity above 50 GPa with a maximum superconducting critical temperature, Tc of 17 K at 90 GPa. Upon furth
Externí odkaz:
http://arxiv.org/abs/2109.11521
Autor:
Xie, S. R., Quan, Y., Hire, A. C., Deng, B., DeStefano, J. M., Salinas, I., Shah, U. S., Fanfarillo, L., Lim, J., Kim, J., Stewart, G. R., Hamlin, J. J., Hirschfeld, P. J., Hennig, R. G.
The Eliashberg theory of superconductivity accounts for the fundamental physics of conventional electron-phonon superconductors, including the retardation of the interaction and the effect of the Coulomb pseudopotential, to predict the critical tempe
Externí odkaz:
http://arxiv.org/abs/2106.05235
Autor:
Xie, Stephen R., Quan, Y., Hire, Ajinkya, Fanfarillo, Laura, Stewart, G. R., Hamlin, J. J., Hennig, R. G., Hirschfeld, P. J.
Even though superconductivity has been studied intensively for more than a century, the vast majority of superconductivity research today is carried out in nearly the same manner as decades ago. That is, each study tends to focus on only a single mat
Externí odkaz:
http://arxiv.org/abs/2104.11150
Autor:
Lim, J., Hire, A. C., Quan, Y., Kim, J., Fanfarillo, L., Xie, S. R., Kumar, R. S., Park, C., Hemley, R. J., Vohra, Y. K., Hennig, R. G., Hirschfeld, P. J., Stewart, G. R., Hamlin, J. J.
With $T_c \sim 9.6~\mathrm{K}$, Be$_{22}$Re exhibits one of the highest critical temperatures among Be-rich compounds. We have carried out a series of high-pressure electrical resistivity measurements on this compound to 30 GPa. The data show that th
Externí odkaz:
http://arxiv.org/abs/2104.01094
Autor:
Lim, Jinhyuk, Kim, J. S., Hire, Ajinkya C., Quan, Yundi, Hennig, R. G., Hirschfeld, P. J., Hamlin, J. J., Stewart, G. R., Olinger, Bart
Publikováno v:
Journal of Physics: Condensed Matter 33, 285705 (2021)
A15 Nb$_3$Si is, until now, the only high temperature superconductor produced at high pressure (~110 GPa) that has been successfully brought back to room pressure conditions in a metastable condition. Based on the current great interest in trying to
Externí odkaz:
http://arxiv.org/abs/2012.02905