Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Adam Rycerz"'
Publikováno v:
Materials, Vol 17, Iss 13, p 3067 (2024)
Highly doped graphene samples show reduced conductance and enhanced shot-noise power compared with standard ballistic systems in two-dimensional electron gas. These features can be understood within a model that assumes incoherent scattering of Dirac
Externí odkaz:
https://doaj.org/article/dc7f4d78083d4c32adc1c255c1170ff4
Publikováno v:
Materials, Vol 16, Iss 12, p 4250 (2023)
Thermopower and the Lorentz number for an edge-free (Corbino) graphene disk in the quantum Hall regime is calculated within the Landauer–Büttiker formalism. By varying the electrochemical potential, we find that amplitude of the Seebeck coefficien
Externí odkaz:
https://doaj.org/article/db8fa056ad9342bd810b1e24434d2f88
Autor:
Adam Rycerz
Publikováno v:
Materials, Vol 14, Iss 11, p 2704 (2021)
In the 2016 experiment by Crossno et al. the electronic contribution to the thermal conductivity of graphene was found to violate the well-known Wiedemann–Franz (WF) law for metals. At liquid nitrogen temperatures, the thermal to electrical conduct
Externí odkaz:
https://doaj.org/article/5210d63e40504818a5e425be056117ee
Autor:
Adam Rycerz
Publikováno v:
New Journal of Physics, Vol 19, Iss 5, p 053025 (2017)
Pairwise entanglement, calculated separately for charge and spin degrees of freedom, is proposed as a ground-state signature of the Mott transition in correlated nanoscopic systems. Utilizing the exact diagonalization— ab initio , for chains contai
Externí odkaz:
https://doaj.org/article/17511d7feb874b5eb867f40e8c84e7c9
Publikováno v:
Materials; Volume 16; Issue 12; Pages: 4250
Thermopower and the Lorentz number for an edge-free (Corbino) graphene disk in the quantum Hall regime is calculated within the Landauer–Büttiker formalism. By varying the electrochemical potential, we find that amplitude of the Seebeck coefficien
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=multidiscipl::f46a20be855c6a59dc104860548b9a6c
Publikováno v:
International Journal of Molecular Sciences; Volume 24; Issue 2; Pages: 1509
Modification of interatomic distances due to high pressure leads to exotic phenomena, including metallicity, superconductivity and magnetism, observed in materials not showing such properties in normal conditions. In two-dimensional crystals, such as
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bf1f21f7cc04a41cc1f0e58f037abdef
Autor:
Adam Rycerz, Piotr Witkowski
Ballistic graphene samples in a multimode regime show the sub-Sharvin charge transport, characterized by the conductance reduced by a factor of $\pi/4$ comparing to standard Sharvin contacts in two-dimensional electron gas, and the shot-noise power e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea1e5ca6dfb7314e4c9a3f48f4d18a54
Autor:
Adam Rycerz, Piotr Witkowski
Ideal Sharvin contact in a multimode regime shows the conductance $G\approx{}G_{\rm Sharvin}=g_0k_F{}W/\pi$ (with $g_0$ the conductance quantum, $k_F$ the Fermi momentum, and $W$ the contact width) accompanied by strongly suppressed shot-noise quanti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2626a00d9def2c0e94c023924f1c719
http://arxiv.org/abs/2107.11634
http://arxiv.org/abs/2107.11634
Publikováno v:
Physical Review B. 101
We study the ballistic conductivity of bilayer graphene in the presence of symmetry-breaking terms in effective Hamiltonian for low-energy excitations, such as the trigonal-warping term ($\gamma_3$), the electron-hole symmetry breaking interlayer hop
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::403dc749c589782aaffba192266c8301
https://doi.org/10.1103/physrevb.101.125425
https://doi.org/10.1103/physrevb.101.125425
Autor:
Dominik Suszalski, Adam Rycerz
The Aharonov-Bohm effect allows one to demonstrate the physical meaningfulness of magnetic vector potential by passing the current in zero magnetic field regions. In the standard (a {\em two-slit-like}) setup a conducting ring is pierced by magnetic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::822336955d52241e3dfab441d268cd18
https://ruj.uj.edu.pl/xmlui/handle/item/254906
https://ruj.uj.edu.pl/xmlui/handle/item/254906