Zobrazeno 1 - 10
of 26
pro vyhledávání: '"E J, Calegari"'
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 33(29)
We investigate the evolution of multicritical points under pressure and magnetic field in a model described by two 5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=pmid________::4f52bc8a3393d48d80bd42b11b6d238d
https://pubmed.ncbi.nlm.nih.gov/33561836
https://pubmed.ncbi.nlm.nih.gov/33561836
Publikováno v:
Physical Review B. 101
We investigate the occurrence of multicritical points under pressure and magnetic field in a model that describes two 5f bands (of either $\alpha$ or $\beta$ characters) which hybridize with a single itinerant conduction band. The 5f-electrons intera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b703f10d92f3f037c1cae84e17d7954
https://doi.org/10.1103/physrevb.101.064407
https://doi.org/10.1103/physrevb.101.064407
Publikováno v:
Progress in Nuclear Science and Technology. 5:86-89
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bf5a0d8aa1d2fa6d3ae5bf7caf17228e
https://doi.org/10.15669/pnst.5.86
https://doi.org/10.15669/pnst.5.86
Publikováno v:
npj Quantum Materials, Vol 2, Iss 1, Pp 1-9 (2017)
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
Repositório Institucional da UFRGS
Universidade Federal do Rio Grande do Sul (UFRGS)
instacron:UFRGS
URu2Si2 exhibits a second-order phase transition at 17.5 K. Initially it was thought that the transition was to a spin density wave phase, however, subsequent measurements do not support this assignment. Despite the unknown nature of the order parame
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95a607f76740aeddfbddd434235fe679
http://link.springer.com/article/10.1038/s41535-017-0055-2
http://link.springer.com/article/10.1038/s41535-017-0055-2
Publikováno v:
Journal of Physics: Condensed Matter. 33:295801
We investigate the evolution of multicritical points under pressure and magnetic field in a model described by two 5f bands (called α and β) that hybridize with a single itinerant conduction band. The interaction is given by the direct Coulomb and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::53a547512773626f4916d650b829550f
https://doi.org/10.1088/1361-648x/abe476
https://doi.org/10.1088/1361-648x/abe476
Publikováno v:
Electronic Structure. 3:024009
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::698cadfc27b4db82528de9fcf6719d1e
https://doi.org/10.1088/2516-1075/ac0511
https://doi.org/10.1088/2516-1075/ac0511
Autor:
E. J. Calegari, J. J. Rodríguez-Núñez
Publikováno v:
Physics Letters A. 380:495-501
Following a two-pole approximation for strong correlations in the presence of superconductivity, we investigated the interplay between local repulsion and superconductivity, mainly on T c , which is the superconducting critical temperature. In additi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f7af4547fd2754b35dac0269184e1dc
https://doi.org/10.1016/j.physleta.2015.10.060
https://doi.org/10.1016/j.physleta.2015.10.060
Publikováno v:
Journal of Physics: Condensed Matter. 32:445601
A simple variational argument is presented which indicates that the spin-orbit coupling in itinerant systems can be enhanced by strong electronic correlations. The importance of the enhancement in the formation of the giant magnetic anisotropy found
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2e42184f6a388ae25c140d1311ef3eed
https://doi.org/10.1088/1361-648x/aba381
https://doi.org/10.1088/1361-648x/aba381
Publikováno v:
Physica B: Condensed Matter. 474:77-80
The main purpose of this paper is to examine the occurrence of ferromagnetism in metals at the very strong coupling regime ( U → ∞ ) in the single-site approximation (SSA). The metal is described by a realistic two hybridized bands (V), one inclu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bff6ce98e89ce37a8367bb9896eb6730
https://doi.org/10.1016/j.physb.2015.05.040
https://doi.org/10.1016/j.physb.2015.05.040
Publikováno v:
Philosophical Magazine. 95:516-524
We present a bare bones description of a model which may lead to a Hidden Order Phase. We use a variational approximation and find that spin-rotational invariance, periodic translational invariance and gauge invariance are broken at low temperatures.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cbc9695ac1cf1fe6ac80be4fc55e3292
https://doi.org/10.1080/14786435.2014.964347
https://doi.org/10.1080/14786435.2014.964347