Magnetic order in the 2D Heavy-Fermion system CePt2In7 studied by μ+SR

13th International Conference on Muon Spin Rotation, Relaxation and Resonance

Månsson, M.^1,2 ; Pra, K.^1,3 ; Sassa, Y.^3 ; Tobash, P.H.^4 ; Bauer, E.D.^4 ; Rusu, C.^5 ; Andreica, D.^5 ; Tjernberg, O.^6 ; Sedlak, K.^7 ; Grioni, M.^8 ; Durakiewicz, T.^4 ; Sugiyama, J.^9

Laboratory for Quantum Magnetism, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne

CH-1015, Switzerland^1

Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institute, Villigen PSI

CH-5232, Switzerland^2

Laboratory for Solid State Physics, ETH Zürich, Zurich

CH-8093, Switzerland^3

Los Alamos National Laboratory, Los Alamos

NM

87545, United States^4

Faculty of Physics, Babes-Bolyai University, Cluj-Napoca

400084, Romania^5

Materials Physics, Royal Institute of Technology KTH, Kista

S-164 40, Sweden^6

Laboratory for Muon Spin Spectroscopy, Paul Scherrer Institute, Villigen PSI

CH-5232, Switzerland^7

Institute of Condensed Matter Physics, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne

CH-1015, Switzerland^8

Toyota Central Research and Development Laboratories, Inc., 41-1 Yokomichi, Nagakute, Aichi

480-1192, Japan^9

关键词: Antiferromagnetic orderings;    Heavy fermion compounds;    Heavy fermion systems;    Low temperatures;    Magnetic order parameter;    Magnetic orders;    Positive muons;    Strong coupling;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/551/1/012028/pdf
DOI  :  10.1088/1742-6596/551/1/012028

来源: IOP

【 摘 要 】

The low-temperature microscopic magnetic properties of the quasi-2D heavy- fermion compound, CePt2In7 are investigated by using a positive muon-spin rotation and relaxation (μ+SR) technique. Clear evidence for the formation of a commensurate antiferromagnetic order below TN 5.40 K is presented. The magnetic order parameter is shown to fit well to a modified BCS gap-energy function in a strong-coupling scenario.