Approaching field tuned quantum criticality in

✍ Scribed by A.V. Silhanek; D. Zocco; N. Harrison; M. Jaime; T. Ebihara

• Publisher: Elsevier Science
• Year: 2006
• Tongue: English
• Weight: 261 KB
• Volume: 378-380
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/j.physb.2006.01.036

✦ Synopsis

We report on the magnetic field evolution of the Neel temperature T N in the heavy electron system CeIn 3Àx Sn x (x ¼ 0 and 0.3), as determined by specific heat, magnetocaloric effect, and electrical transport measurements. For the stoichiometric compound, T N is fully suppressed at H c $65 T, whereas for x ¼ 0:3 the critical field extrapolates to H c $30 T. An increasing Sommerfeld coefficient g, obtained above T N , as field increases is observed and could be related to the a putative quantum critical point at H c .