Magnetic structure of the Eu$^{2+}$ moments in superconducting ${EuFe_2(As_{1−x}P_x)}_2$ with $x=0.19$

Nandi, S.; Brückel, Th.; Xiao, Y.; Schmidt, W.; Price, S.; Jin, W. T.; Gegenwart, P.; Chatterji, T.; Schmalzl, K.; Su, Y.; Jeevan, H. S.

doi:10.1103/PhysRevB.90.094407

Journal Article

FZJ-2014-04949

Magnetic structure of the Eu$^{2+}$ moments in superconducting ${EuFe_2(As_{1−x}P_x)}_2$ with $x=0.19$

Nandi, S. (Corresponding Author)FZJ* ; Jin, W. T. ; Xiao, Y.FZJ* ; Su, Y.FZJ* ; Price, S.FZJ* ; Schmidt, W.FZJ* ; Schmalzl, K.FZJ* ; Chatterji, T. ; Jeevan, H. S. ; Gegenwart, P. ; Brückel, T.FZJ*

2014
APS College Park, Md.

Physical review / B 90(9), 094407 (2014) [10.1103/PhysRevB.90.094407]

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Please use a persistent id in citations: http://hdl.handle.net/2128/9117 doi:10.1103/PhysRevB.90.094407

Abstract: The magnetic structure of the Eu2+ moments in the superconducting EuFe2(As1−xPx)2 sample with x=0.19 has been determined using neutron scattering. We conclude that the Eu2+ moments are aligned along the c direction below TC=19.0(1) K with an ordered moment of 6.6(2) μB in the superconducting state. An impurity phase similar to the underdoped phase exists within the bulk sample which orders antiferromagnetically below TN=17.0(2) K. We found no indication of iron magnetic order, nor any incommensurate magnetic order of the Eu2+ moments in the sample.

Keyword(s): Magnetic Materials (1st) ; Key Technologies (1st) ; Fundamental Science (1st) ; Magnetism (2nd)

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