Joint NMR and Neutron Scattering Study Investigates New Heavy Fermion Material

CeVGe3 is a heavy fermion material with a hexagonal structure that undergoes antiferromagnetic ordering below 6 K.  In this work we collaborated with scientists from Tohoku University in Sendai, Japan, and at the University of Sydney in Australia, to determine that the antiferromagnetic ordering has a spiral structure.  The Ce spins align ferromagnetically within each plane, but rotate by 88 degrees from one plane to the next, forming a spiral along the c-axis of the crystal.  Magnetic fields aligned perpendicular to this axis destabilize the spiral, giving rise to a metamagnetic field-induced phase. This behavior is similar to another well-known heavy fermion material, CeRhIn5, which as a tetragonal structure.

@article{Chaffey2023,

title = {Magnetic structure and Kondo lattice behavior in CeVGe3: An NMR and neutron scattering study},

author = {C. Chaffey and H. C. Wu and Hanshang Jin and P. Sherpa and Peter Klavins and M. Avdeev and S. Aji and R. Shimodate and K. Nawa and T. J. Sato and V. Taufour and N. J. Curro},

doi = {10.1103/PhysRevB.108.115163},

year  = {2023},

date = {2023-09-01},

journal = {Phys. Rev. B. },

volume = {108},

pages = {115163},

keywords = {},

pubstate = {published},

tppubtype = {article}

}