| dc.creator | Lamas, Carlos Alberto | |
| dc.creator | Cabra, Daniel Carlos | |
| dc.creator | Grynberg, Marcelo Daniel | |
| dc.creator | Rossini, Gerardo Luis | |
| dc.date | 2006-12-27 | |
| dc.date | 2013-06-24T11:27:40Z | |
| dc.identifier | http://sedici.unlp.edu.ar/handle/10915/27312 | |
| dc.identifier | issn:1098-0121 | |
| dc.description | We study the magnetic properties of two types of one-dimensional XX spin-1/2 chains. The first type has only nearest-neighbor interactions which can be either antiferromagnetic or ferromagnetic, and the second type has both nearest-neighbor and next-nearest-neighbor interactions, but only antiferromagnetic in character. We study these systems in the presence of low magnetic fields both analytically and numerically. Comparison of results shows a close relation between the two systems, which is in agreement with results previously found in Heisenberg chains by means of a numerical real-space renormalization-group procedure. | |
| dc.description | Facultad de Ciencias Exactas | |
| dc.format | application/pdf | |
| dc.language | en | |
| dc.rights | http://creativecommons.org/licenses/by/2.5/ar/ | |
| dc.rights | Creative Commons Attribution 2.5 Argentina (CC BY 2.5) | |
| dc.subject | Ciencias Exactas | |
| dc.subject | Física | |
| dc.subject | disorder | |
| dc.subject | quantum magnetism | |
| dc.title | Comparison between disordered quantum spin-1/2 chains | |
| dc.type | Articulo | |
| dc.type | Articulo | |
