Zobrazeno 1 - 10
of 31
pro vyhledávání: '"D C Mattis"'
Autor:
D. C. Mattis
Publikováno v:
International Journal of Nanoscience. :165-170
We discuss the spontaneous magnetism of electrons constrained to the corners of a square plaquette, with a view to applications in molecular physics and nanotechnology. The special cases of three or five electrons have a ground-state level-crossing i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04827d5a6b327a2578c6db3c65f45b5e
https://doi.org/10.1142/s0219581x03001164
https://doi.org/10.1142/s0219581x03001164
Publikováno v:
Physics Letters A. 288:277-282
We calculate thermodynamic properties of a disordered model insulator, starting from the ideal simple-cubic lattice ($g = 0$) and increasing the disorder parameter $g$ to $\gg 1/2$. As in earlier Einstein- and Debye- approximations, there is a phase
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c5b1bf5ab0e4660d737c96bfb02329e
https://doi.org/10.1016/s0375-9601(01)00558-8
https://doi.org/10.1016/s0375-9601(01)00558-8
Publikováno v:
Condensed Matter Physics and Exactly Soluble Models ISBN: 9783642060939
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa5b9388d776cb8bf810756d46d3b8a3
https://doi.org/10.1007/978-3-662-06390-3_33
https://doi.org/10.1007/978-3-662-06390-3_33
Autor:
M. I. Molina, D. C. Mattis
Publikováno v:
Springer Proceedings in Physics ISBN: 9783642847769
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3946cbab61c62a9033adab52842f7d71
https://doi.org/10.1007/978-3-642-84774-5_24
https://doi.org/10.1007/978-3-642-84774-5_24
Publikováno v:
Physical Review Letters. 33:1356-1359
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::046b6922766bd2771592fa1bc6c1c3f2
https://doi.org/10.1103/physrevlett.33.1356
https://doi.org/10.1103/physrevlett.33.1356
Autor:
D. C. Mattis, J. Gallardo
Publikováno v:
Physical Review B. 22:5517-5521
New York. 333 Jay Street. Brooklyn. New York 11201 (Received 4 January 1980) We study the order parameter near the surface for an Ising model. Applications to the lattice gas, al10y problem, and ferromagnetism are noted. Away from Tc our equations di
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f6aaaa9fddd126d32e182cb82c2e327a
https://doi.org/10.1103/physrevb.22.5517
https://doi.org/10.1103/physrevb.22.5517
Autor:
D C Mattis, R Schilling
Publikováno v:
Journal of Physics C: Solid State Physics. 14:L729-L732
The authors compute the ground state energy of a Heisenberg linear chain antiferromagnet for spins s=1/2, 1 . . . infinity by a block renormalisation method. Although this method yields reasonably accurate results in the quantum limit s=1/2, in the s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf85579eac1cc525d93814729b3bfa5c
https://doi.org/10.1088/0022-3719/14/24/002
https://doi.org/10.1088/0022-3719/14/24/002
Autor:
D. C. Mattis, R. E. Peña
Publikováno v:
Physical Review B. 10:1006-1010
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0f6fc9e8c8835993909abe55e2af6eca
https://doi.org/10.1103/physrevb.10.1006
https://doi.org/10.1103/physrevb.10.1006
Autor:
D C Mattis, J Gallardo
Publikováno v:
Journal of Physics C: Solid State Physics. 13:2519-2533
A real-space renormalisation group transformation is applied to a quantum two-dimensional problem, that of the Ising model in a transverse field on a square lattice. This enables the authors to estimate some properties of the ordinary Ising model on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f35f71634cb5c7563964a4ec38d8642b
https://doi.org/10.1088/0022-3719/13/13/009
https://doi.org/10.1088/0022-3719/13/13/009