Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Baima, Jacopo"'
Autor:
Campetella, Marco, Nguyen, Nguyen Minh, Baima, Jacopo, Maschio, Lorenzo, Mauri, Francesco, Calandra, Matteo
Publikováno v:
Phys. Rev. B 101, 165437 (2020)
Multilayer graphene with rhombohedral and Bernal stacking are supposed to be metallic, as predicted by density functional theory calculations using semi-local functionals. However recent angular resolved photoemission and transport data have question
Externí odkaz:
http://arxiv.org/abs/2001.06219
Autor:
Lee, Yongjin, Che, Shi, Velasco Jr., Jairo, Tran, David, Baima, Jacopo, Mauri, Francesco, Calandra, Matteo, Bockrath, Marc, Lau, Chun Ning
Magnetism is a prototypical phenomenon of quantum collective state, and has found ubiquitous applications in semiconductor technologies such as dynamic random access memory (DRAM). In conventional materials, it typically arises from the strong exchan
Externí odkaz:
http://arxiv.org/abs/1911.04450
Publikováno v:
Phys. Rev. B 98, 201103 (2018)
"Metallic" carbon nanotubes exhibit quasiparticle gaps when isolated from a screening environment. The gap-opening mechanism is expected to be of electronic origin, but the precise nature is debated. In this work, we show that hybrid density function
Externí odkaz:
http://arxiv.org/abs/1807.05589
Publikováno v:
Phys. Rev. B 98, 075418 (2018)
Rhombohedral stacked multilayer graphene displays the occurrence of a magnetic surface state at low temperatures. Recent angular resolved photoemission experiments demonstrate the robustness of the magnetic state in long sequences of ABC graphene. He
Externí odkaz:
http://arxiv.org/abs/1802.09028
The effect of the exchange interaction on the vibrational properties and on the electron-phonon coupling were investigated in several recent works. In most of the case, exchange tends to enhance the electron-phonon interaction, although the motivatio
Externí odkaz:
http://arxiv.org/abs/1712.00366
Autor:
Henck, Hugo, Avila, Jose, Aziza, Zeineb Ben, Pierucci, Debora, Baima, Jacopo, Pamuk, Betül, Chaste, Julien, Utt, Daniel, Bartos, Miroslav, Nogajewski, Karol, Piot, Benjamin A., Orlita, Milan, Potemski, Marek, Calandra, Matteo, Asensio, Maria C., Mauri, Francesco, Faugeras, Clément, Ouerghi, Abdelkarim
Publikováno v:
Phys. Rev. B 97, 245421 (2018)
The crystallographic stacking order in multilayer graphene plays an important role in determining its electronic properties. It has been predicted that a rhombohedral (ABC) stacking displays a conducting surface state with flat electronic dispersion.
Externí odkaz:
http://arxiv.org/abs/1708.03220
Autor:
Hellgren, Maria, Baima, Jacopo, Bianco, Raffaello, Calandra, Matteo, Mauri, Francesco, Wirtz, Ludger
Publikováno v:
Phys. Rev. Lett. 119, 176401 (2017)
We show that the inclusion of screened exchange via hybrid functionals provides a unified description of the electronic and vibrational properties of TiSe2. In contrast to local approximations in density functional theory, the explicit inclusion of e
Externí odkaz:
http://arxiv.org/abs/1704.05669
Publikováno v:
Phys. Rev. B 95, 075422 (2017)
We investigate the occurrence of magnetic and charge density wave instabilities in rhombohedral-stacked multilayer (three to eight layers) graphene by first principles calculations including exact exchange. Neglecting spin-polarization, an extremely
Externí odkaz:
http://arxiv.org/abs/1610.03445
Publikováno v:
Phys. Rev. B 94, 035101 (2016)
We investigate the capability of density functional theory (DFT) to appropriately describe the spin susceptibility, $\chi_s$, and the intervalley electron-phonon coupling in Li$_x$ZrNCl. At low doping, Li$_x$ZrNCl behaves as a two-dimensional two-val
Externí odkaz:
http://arxiv.org/abs/1602.05076
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