Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Ezio, Bruno"'
The properties of a macroscopic assembly of weakly-repulsive bosons at zero temperature are well described by Gross-Pitaevskii mean-field theory. According to this formalism the system exhibits a quantum transition from superfluid to cluster supersol
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8d5c9b7e2b6c10ae60b5a302f51da5a6
Publikováno v:
EPJ Web of Conferences, Vol 230, p 00008 (2020)
We work out the ground-state diagram of weakly-repulsive penetrable bosons, using mean-field theory with a Gaussian ansatz on the single-particle wave function. Upon compression, the fluid transforms into a cluster supersolid, whose structure is char
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::925a0979ed6017c73199282941c7faa8
https://doi.org/10.1051/epjconf/202023000008
https://doi.org/10.1051/epjconf/202023000008
Publikováno v:
Journal of Physics A: Mathematical and Theoretical. 52:015002
We study a system of penetrable bosons on a line, focusing on the high-density/weak-interaction regime, where the ground state is, to a good approximation, a condensate. Under compression, the system clusterizes at zero temperature, i.e., particles g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ba4d7a43e239d64c59f6767da4e85788
https://doi.org/10.1088/1751-8121/aaee94
https://doi.org/10.1088/1751-8121/aaee94
Autor:
László Szunyogh, Ezio Bruno, Julie B. Staunton, S. Ostanin, Balazs L. Gyorffy, S. S. A. Razee, Beniamino Ginatempo
Publikováno v:
Journal of Physics: Condensed Matter. 16:S5623-S5631
The magnetocrystalline anisotropy (MCA) of bulk and thick films of FePt is calculated from a 'first-principles' theory. The starting point is a description from electronic density functional theory for systems of interacting electrons moving in latti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b44105c520d9e19fc66110cf2851c0df
https://doi.org/10.1088/0953-8984/16/48/019
https://doi.org/10.1088/0953-8984/16/48/019
Autor:
Ezio Bruno, Leon Zingales
Publikováno v:
Philosophical Magazine. 84:1621-1629
The charge excess functional (CEF) theory allows for very accurate calculations of the distribution of excess charges (DOC) in metallic alloys. We present CEF results for Cu0.50 Zn0.50 alloys and study the effects of substitutional disorder on the co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2a2f032ebf647fe296e76249ed045ba2
https://doi.org/10.1080/14786430310001644404
https://doi.org/10.1080/14786430310001644404
Autor:
J. Poulter, Thomas N. Jarlborg, Stephen B Dugdale, Julie B. Staunton, Beniamino Ginatempo, Ezio Bruno, Z Major
Publikováno v:
Journal of Physics. Condensed Matter, Vol. 15 (2003) pp. 3619-3629
The electronic structure of invar alloys (i.e. materials in which the near absence of thermal expansion is observed) has been the focus of much study, owing both to the technological applications of these materials and interest in the fundamental mec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4132e0ff1566b473e1866b236e3c0145
https://doi.org/10.1088/0953-8984/15/21/310
https://doi.org/10.1088/0953-8984/15/21/310
Publikováno v:
Journal of Applied Physics. 93:453-457
The magnetic properties of FePt samples, potential materials for high density recording media, depend sharply on the degree of chemical ordering produced during their preparation. This has prompted our investigation of the chemical order in both para
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d6f9f6132413522f62bcbd4e9ccc11a7
https://doi.org/10.1063/1.1523147
https://doi.org/10.1063/1.1523147
Publikováno v:
Phys. Chem. Chem. Phys.. 4:4539-4542
The mechanical relaxation processes in superionic iodomolybdate glasses have been revealed by ultrasonic measurements. The attenuation peaks of longitudinal and shear waves in (AgI)1−x(Ag2MoO4)x, with 0.25⩽x⩽0.4, at temperatures between 100 and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fab5991e5743f82de9c1c5addd0ffd2a
https://doi.org/10.1039/b203311a
https://doi.org/10.1039/b203311a
Publikováno v:
Journal of Physics: Condensed Matter. 13:8565-8572
A theory is presented for describing the effects of annealing magnetic alloys in magnetic fields. It has an ab initio spin-polarized relativistic Korringa–Kohn– Rostoker coherent potential approximation (KKR-CPA) electronic structure basis and us
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f98c15240c51b539699515d2ac6f4fe7
https://doi.org/10.1088/0953-8984/13/38/303
https://doi.org/10.1088/0953-8984/13/38/303
Publikováno v:
Journal of Physics: Condensed Matter. 13:8153-8160
We study the magnetocrystalline anisotropy of Fe0.5Pd0.5 alloy using the first-principles spin-polarized relativistic Korringa–Kohn–Rostoker coherentpotential approximation. We investigate the effect of long-ranged chemical order on the magnitude
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9e5114c3cd2dfff2882ea25663c15a5f
https://doi.org/10.1088/0953-8984/13/35/320
https://doi.org/10.1088/0953-8984/13/35/320