Evolution of superconductivity and antiferromagnetic order in Ba(Fe0.92-xCo0.08Vx)2As2
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Author(s)
Related Research Unit(s)
Detail(s)
Original language | English |
---|---|
Article number | 174516 |
Journal / Publication | Physical Review B |
Volume | 101 |
Issue number | 17 |
Online published | 28 May 2020 |
Publication status | Published - May 2020 |
Link(s)
DOI | DOI |
---|---|
Attachment(s) | Documents
Publisher's Copyright Statement
|
Link to Scopus | https://www.scopus.com/record/display.uri?eid=2-s2.0-85090149586&origin=recordpage |
Permanent Link | https://scholars.cityu.edu.hk/en/publications/publication(e89e4063-616c-40ba-bb0a-5a7757b55ed4).html |
Abstract
The vanadium doping effects on the superconductivity and magnetism of iron pnictides are investigated in Ba(Fe0.92-xCo0.08Vx)2As2 by transport, susceptibility, and neutron scattering measurements. The doping of magnetic impurity V causes a fast suppression of superconductivity with TC reduced at a rate of approximately 7.4 K/1% V. On the other hand, for x ≥ 0.02, long-range C-type antiferromagnetic order is recovered upon V doping, in contrast to the x = 0 sample with no detectable magnetic order. The value of ordered magnetic moments of Ba(Fe0.92-xCo0.08Vx)2As2 follows a domelike evolution versus doping concentration x. A possible Griffiths-type antiferromagnetic region of multiple coexisting phases in the phase diagram of Ba(Fe0.92-xCo0.08Vx)2As2 is identified, in accordance with previous theoretical predictions based on the cooperative behavior of magnetic impurities and conduction electrons mediating the Ruderman-Kittel-Kasuya-Yosida interactions between them.
Research Area(s)
Citation Format(s)
Evolution of superconductivity and antiferromagnetic order in Ba(Fe0.92-xCo0.08Vx)2As2. / Sheng, Jieming; Li, Xingguang; Tian, Congkuan et al.
In: Physical Review B, Vol. 101, No. 17, 174516, 05.2020.
In: Physical Review B, Vol. 101, No. 17, 174516, 05.2020.
Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review
Download Statistics
No data available