The behavior of magnetic ordering and the KOndo effect in the alloys, Ce2Rh(1-x)Co(x)Si3: Evidence from bulk studies for Fermi-surface change during magnetic ordering - QCP transformation and applicability of SDW pictur
| dc.creator | Patil, Swapnil | |
| dc.creator | Iyer, Kartik K | |
| dc.creator | Maiti, K. | |
| dc.creator | Sampathkumaran, E. V. | |
| dc.date | 2008-03-05 | |
| dc.date.accessioned | 2026-07-07T09:24:55Z | |
| dc.date.available | 2026-07-07T09:24:55Z | |
| dc.description | The results of magnetic susceptibility, electrical resistivity (rho), and heat capacity measurements as a function of temperature are reported for the alloys, Ce2Rh(1-x)Co(x)Si3, crystallizing in an AlB2-derived hexagonal strcture. Ce2RhSi3 exhibits antiferromagnetic ordering at 7 K. The Neel temperature decreases gradually with the increase in Co concentration. For x greater than 0.6, no magnetic ordering is observed down to 0.5 K. Interestingly, the x= 0.6 alloy exhibits signatutes of non-Fermi liquid behavior, while the Co end member is a Fermi liquid. Thus, a transformation of magnetic ordering state to non-magnetism via non-Fermiliquid state by isoelectronic chemical doping is evident in this solid solution. The electrical resistivity data for x= 0.2 and 0.3 alloys show an upturn at respective Neel temperatures, establishing the formation of a magnetism-induced pseudo-gap for these intermediate compositions alone as though there is a gradual Fermi surface transformation as the quantum critical point is approached. | |
| dc.description | A slightly modified version will appear in print in PRB. PRB, in press | |
| dc.identifier | https://arxiv.org/abs/0803.0652 | |
| dc.identifier | http://arxiv.org/abs/0803.0652 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/156235 | |
| dc.subject | Strongly Correlated Electrons | |
| dc.subject | Materials Science | |
| dc.title | The behavior of magnetic ordering and the KOndo effect in the alloys, Ce2Rh(1-x)Co(x)Si3: Evidence from bulk studies for Fermi-surface change during magnetic ordering - QCP transformation and applicability of SDW pictur | |
| dc.type | text |