Absence of Conventional Spin-Glass Transition in the Ising Dipolar System LiHo_xY_{1-x}F_4
| dc.creator | Jönsson, P. E. | |
| dc.creator | Mathieu, R. | |
| dc.creator | Wernsdorfer, W. | |
| dc.creator | Tkachuk, A. M. | |
| dc.creator | Barbara, B. | |
| dc.date | 2007-05-03 | |
| dc.date | 2007-06-23 | |
| dc.date.accessioned | 2026-07-07T08:11:43Z | |
| dc.date.available | 2026-07-07T08:11:43Z | |
| dc.description | The magnetic properties of single crystals of LiHo_xY_{1-x}F_4 with x=16.5% and x=4.5% were recorded down to 35 mK using a micro-SQUID magnetometer. While this system is considered as the archetypal quantum spin glass, the detailed analysis of our magnetization data indicates the absence of a phase transition, not only in a transverse applied magnetic field, but also without field. A zero-Kelvin phase transition is also unlikely, as the magnetization seems to follow a non-critical exponential dependence on the temperature. Our analysis thus unmasks the true, short-ranged nature of the magnetic properties of the LiHo_xY_{1-x}F_4 system, validating recent theoretical investigations suggesting the lack of phase transition in this system. | |
| dc.description | 5 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/0705.0434 | |
| dc.identifier | http://arxiv.org/abs/0705.0434 | |
| dc.identifier | Phys. Rev. Lett. 98, 256403 (2007) | |
| dc.identifier | doi:10.1103/PhysRevLett.98.256403 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/132212 | |
| dc.subject | Disordered Systems and Neural Networks | |
| dc.title | Absence of Conventional Spin-Glass Transition in the Ising Dipolar System LiHo_xY_{1-x}F_4 | |
| dc.type | text |