Zobrazeno 1 - 10
of 518
pro vyhledávání: '"J. P. Carbotte"'
Autor:
Adam W. Tsen, A. P. Drozdov, Tarun Patel, J. P. Carbotte, E. J. Nicol, Mikhail Eremets, Vasily S. Minkov, Thomas Timusk
We describe an experimental platform that generates infrared images of micrometer-sized samples in the high pressure region of a diamond anvil cell. Using a 2.3 micron laser as a source of radiation, the system will be particularly useful in identify
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::af9efd26652ff16f32bcf6daadbeef4d
https://hdl.handle.net/21.11116/0000-0009-6D39-E
https://hdl.handle.net/21.11116/0000-0009-6D39-E
Autor:
Ashutosh Singh, J. P. Carbotte
Publikováno v:
Physical Review B. 103
In a tilted doped Weyl semimetal there are well-defined ranges of photon energies where there is dichroism. These correspond to regions of energy where the imaginary part of the dynamic Hall conductivity is finite. Such regions can involve contributi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc5769723d7bc08d01603e42592d1f88
https://doi.org/10.1103/physrevb.103.075114
https://doi.org/10.1103/physrevb.103.075114
The discovery of superconductivity at 203K in SH$_3$ is an important step toward higher values of $T_c$. Predictions based on state-of-the-art DFT for the electronic structure, including one preceding experimental confirmation, showed the mechanism t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::233586f5a1a6a7b7d8d0638d3e2b4a48
http://arxiv.org/abs/1910.02991
http://arxiv.org/abs/1910.02991
Autor:
J. P. Carbotte, Ashutosh Singh
Publikováno v:
Physical Review B. 99
From the Kubo formula for transport in a tilted Weyl semimetal we calculate the absorptive part of the dynamic conductivity for both right and left handed circular polarized light. These depend on the real part of the longitudinal conductivity and th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b5567fc2b98777e94ec7fa7eb07ebd0
https://doi.org/10.1103/physrevb.99.235134
https://doi.org/10.1103/physrevb.99.235134
Within a Kubo formalism, we calculate the absorptive part of the dynamic longitudinal conductivity $\sigma(\Omega)$ of a 2D semi-Dirac material. In the clean limit, we provide separate analytic formulas for intraband (Drude) and interband contributio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::68700550ae4962e964a7600f41b29352
http://arxiv.org/abs/1903.04997
http://arxiv.org/abs/1903.04997
Autor:
E. J. Nicol, J. P. Carbotte
We consider the optical and transport properties in a model two-dimensional Hamiltonian which describes the merging of two Dirac points. At low energy, in the presence of an energy gap parameter $\Delta$, there are two distinct Dirac points with line
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93fc3945bb18049acafe35d1d6570ead
Autor:
J. P. Carbotte, S. P. Mukherjee
Weyl nodes come in pairs of opposite chirality. For broken time reversal symmetry (TR) they are displaced in momentum space by $\bf{Q}$ and the anomalous DC Hall conductivity $\sigma_{xy}$ is proportional to $\bf{Q}$ at charge neutrality. For finite
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c87890e598460cd51b23faeec6dd2b5
http://arxiv.org/abs/1803.02465
http://arxiv.org/abs/1803.02465
We present a new technique for measuring the critical temperature Tc in the high pressure, high Tc electron-phonon-driven superconducting hydrides. This technique does not require connecting leads to the sample. In the multiphonon region of the absor
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5536fac0deaf16d1f2163c0023204041
http://arxiv.org/abs/1802.09951
http://arxiv.org/abs/1802.09951
Autor:
J. P. Carbotte, S. P. Mukherjee
Publikováno v:
Physical Review B. 97
Weyl semimetal (WSM) feature tilted Dirac cones and can be type I or II depending on the magnitude of the tilt parameter ($C$). The boundary between the two types is at $C=1$ where the cones are tipped and there is a Lifshitz transition. The topologi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a83c6b24a523cd7c322b027ae60a748
https://doi.org/10.1103/physrevb.97.045150
https://doi.org/10.1103/physrevb.97.045150
Autor:
J. P. Carbotte, S. P. Mukherjee
Publikováno v:
Physical Review B. 97
We consider a Weyl semimetal (WSM) with finite doping and tilt within a continuum model Hamiltonian with both broken time reversal and inversion symmetry. We calculate the absorptive part of the anomalous AC Hall conductivity as a function of photon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8e04fea5d5516da3d47dfc440a6f94c1
https://doi.org/10.1103/physrevb.97.035144
https://doi.org/10.1103/physrevb.97.035144