Year: 2018
Type: article
Abstract: We report an investigation of the structural, magnetic and electronic properties of Ba(Fe 1− x V x ) 2 As 2 using x-ray, transport, magnetic susceptibility and neutron scattering measurements. The vanadium substitutions in Fe sites are possible up to ∼ 40%. Hall effect measurements indicate strong hole-doping effect through V doping, while no superconductivity is observed in all samples down to 2 K. The antiferromagnetic and structural transition temperature of BaFe 2 As 2 is gradually suppressed to finite temperature, then vanishes at with the emergence of spin glass behavior, suggesting an avoided quantum critical point (QCP). Our results demonstrate that the avoided QCP and spin glass state which were previously reported in the superconducting phase of Co/Ni-doped BaFe 2 As 2 can also be realized in non-superconducting Ba(Fe 1− x V x ) 2 As 2 .
Source: Europhysics Letters (EPL)
Authors: Xing-Guang Li, Jie-Ming Sheng, Cong-Kuan Tian, Yi-Yan Wang, Tian-Long Xia, Le Wang, Feng Ye, Wei Tian, Jin-Chen Wang, Juan-Juan Liu, Hong-Xia Zhang, Wei Bao, Peng Cheng
Institutions: Renmin University of China, Oak Ridge National Laboratory
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: bronze
Awards: G3269836651, G3416754351
OpenAlex ID: W2950610694