STUDY OF THE ELECTRON-QUASI-PARTICLE INTERACTION IN NDCU BY POINT-CONTACT SPECTROSCOPY

We have studied the electron-quasiparticle interaction in low symmetry rare-earth intermetallic compound NdCu with an antiferromagnetic orde ring at T-N = 10 K by the point-contact (PC) spectroscopy. We have per formed the study of NdCu-Cu heterocontacts in the near ballistic regim e above and below T-N. We have observed crystalline-electric-field (CE F) transition peak at similar to 3 meV. Below T-N this structure becom es complicated due to the exchange interaction and crystallographic or ientation of PC. The structure above 6 meV is connected with phonons.