*Soohyeon Shin1, Vladimir Pomjakushin2, Lukas Keller2, Uwe Hans-Arnim Stuhr2, Sandor Toth2, Christof Niedermayer2, Romain Sibille2, Jihyun Kim1, Seung-ku Son1, Han-Oh Lee1, Tian Shang3,4,5, Maria Luisa Medarde3, Eric Dietzgen Bauer6, Priscila Ferrari Silveira Rosa6, Michel Kenzelmann2, Tuson Park1
(1. Center for Quantum Materials and Superconductivity (CQMS) and Department of Physics, Sungkyunkwan University, Suwon 16419, South Korea(Korea), 2. Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232, Villigen PSI, Switzerland(Switzerland), 3. Laboratory for Multiscale Materials Experiments, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland(Switzerland), 4. Swiss Light Source, Paul Scherrer Institut, CH-5232, Villigen, Switzerland(Switzerland), 5. Institut of Condensed Matter Physics, Ecole Polytechnique Federale de Lausanne (EPFL), CH-1015 Lausanne, Switzerland(Switzerland), 6. Los Alamos National Laboratory, Los Alamos, NM 87545, USA(United States of America))
Keywords:CePtAl4Ge2, Geometrical magnetic frustration, Kondo and RKKY interaction, Triangular antiferromagnet