Zobrazeno 1 - 10
of 45
pro vyhledávání: '"Alberto Nocera"'
Autor:
Alberto Nocera, Mona Berciu
Publikováno v:
SciPost Physics, Vol 15, Iss 3, p 110 (2023)
Spectral functions are important quantities that contain a wealth of information about the quasiparticles of a system, and that can also be measured experimentally. For systems with electron-phonon coupling, good approximations for the spectral funct
Externí odkaz:
https://doaj.org/article/632bd85819ff4c3199b1f8fa18cc9cb0
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-12 (2021)
The underlying mechanism of the superconductivity in high-Tc cuprates and the role spin and charge excitations play has been under debate since the cuprates were first discovered. Here, the authors perform a series of calculations for multi- and sing
Externí odkaz:
https://doaj.org/article/fe04550347d04a1db0b50f6ff7c3fc23
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 7, Iss 1, Pp 439-464 (2016)
Background: Soft nanosystems are electronic nanodevices, such as suspended carbon nanotubes or molecular junctions, whose transport properties are modulated by soft internal degrees of freedom, for example slow vibrational modes. Effects of the elect
Externí odkaz:
https://doaj.org/article/edb19004967646c7935605b1e02bdc94
Publikováno v:
Physical Review Research, Vol 2, Iss 3, p 033268 (2020)
A central question on Kitaev materials is the effects of additional couplings on the Kitaev model, which is proposed to be a candidate for realizing topological quantum computations. However, two spatial dimensions typically suffer the difficulty of
Externí odkaz:
https://doaj.org/article/06fca30477a444e3a8477ac9d26a2d3c
Publikováno v:
New Journal of Physics, Vol 20, Iss 7, p 073019 (2018)
Resonant inelastic x-ray scattering (RIXS) at the oxygen K -edge has recently accessed multi-spinon excitations in the one-dimensional antiferromagnet (1D-AFM) Sr _2 CuO _3 , where four-spinon excitations are resolved separately from the two-spinon c
Externí odkaz:
https://doaj.org/article/0a01679c6be2421d8fcbba1f1953187a
While new light sources allow for unprecedented resolution in experiments with X-rays, a theoretical understanding of the scattering cross-section is lacking. In the particular case of strongly correlated electron systems, numerical techniques are qu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a7af9d8087fc1a233fdefbf2b1f00ede
https://doi.org/10.21203/rs.3.rs-2066594/v1
https://doi.org/10.21203/rs.3.rs-2066594/v1
Publikováno v:
Communications Physics, Vol 4, Iss 1, Pp 1-12 (2021)
Although many experiments imply that oxygen orbitals play an essential role in the high-temperature superconducting cuprates, their precise role in collective spin and charge excitations and superconductivity is not yet fully understood. Here, we stu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdcdea4b2670eb0fcc61632383ba99e1
https://doaj.org/article/fe04550347d04a1db0b50f6ff7c3fc23
https://doaj.org/article/fe04550347d04a1db0b50f6ff7c3fc23
Publikováno v:
Physical Review B. 106
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d06af8b778fd25537d8967868a394bd
https://doi.org/10.1103/physrevb.106.064425
https://doi.org/10.1103/physrevb.106.064425
In this work, we analyze the nonsymmorphic symmetry group structures for a variety of generalized Kitaev spin chains and ladders with bond alternations, including Kitaev-Gamma chain, Kitaev-Heisenberg-Gamma chain, beyond nearest neighbor interactions
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ce3faac5e0ff026ee2dfb8964812285
Publikováno v:
Physical Review B. 103
A minimal Kitaev-Gamma model has been recently investigated to understand various Kitaev systems. In the one-dimensional Kitaev-Gamma chain, an emergent SU(2)$_1$ phase and a rank-1 spin ordered phase with $O_h\rightarrow D_4$ symmetry breaking were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d59fae6cb33b2f5afdbe559045c12904
https://doi.org/10.1103/physrevb.103.054437
https://doi.org/10.1103/physrevb.103.054437