Interplay of superconductivity and d—f correlation in CeFeAs_1−xP_xO_1−yF_y

Abstract

TOPICAL REVIEW -Iron-based high temperature superconductors Interplay of superconductivity and d-f correlation in CeFeAs 1−𝑥 P 𝑥 O 1−𝑦 F 𝑦 * Luo Yong-Kang(罗永康) a) , Li Yu-Ke(李玉科) a)b) , Wang Cao(王 操) a)c) , Lin Xiao(林 效) a) , Dai Jian-Hui(戴建辉) a)b) , Cao Guang-Han(曹光旱) a) , and Xu Zhu-An(许祝安) a) †

Coexistence of ferromagnetism and superconductivity inCeO0.3F0.7BiS2

“…The interplay between the superconducting and blocking layers and its impact on superconductivity has been of great interest in cuprates and pnictide superconductors. Recently the R e T m P n O system (R e : rare earth, T m : transition metal, P n : Pnictogen) 51 has shown diverse electronic and magnetic properties depending on the T m P n blocking layers. Experimental systems in this category includes a ferromagnetic Kondo system CeRuPO 52 , a correlation-enhanced local moment antiferromagnet CeNiAsO 53 and superconducting LaFePO 54 .…”

Iron-based magnetic superconductors AEuFe4As4 (A = Rb, Cs): natural superconductor–ferromagnet hybrids

“…A complex Eu-spin magnetism including re-entrant spin glass and re-entrant spin reorientation were observed [141,142]. In addition to the Eu-based iron-pnictide FSCs, coexistence of SC and Ce-FM below ∼5 K was also found in Ce-containing CeFeAs 1−x P x O 0.95 F 0.05 at x 0.5 [144]. An additional example of the material is Sr 2 VFeAsO 3 in which the V sublattice exhibits successive magnetic transitions with weak FM at 55 K [145], resembling the case of Ru-containing cuprates [25,26].…”

Coexistence of ferromagnetism and superconductivity in CeO$_{0.3}$F$_{0.7}$BiS$_{2}$

“…The interplay between the superconducting and blocking layers and its impact on superconductivity has been of great interest in cuprates and pnictide superconductors. Recently the R e T m P n O system (R e : rare earth, T m : transition metal, P n : Pnictogen) 49 has shown diverse electronic and magnetic properties depending on the T m P n blocking layers. Experimental systems in this category includes a ferromagnetic Kondo system CeRuPO 50 , a correlationenhanced local moment antiferromagnet CeNiAsO 51 and superconducting LaFePO 52 .…”