Abstract
We investigate the mechanism how the complex magnetic structure is stabilized in PrB 6 , paying attention to similarity to and difference from the case of CeB 6 . A Ginzburg–Landau-type expansion of the free energy is obtained with account of the Γ 5 -triplet crystalline electric field (CEF) ground state in PrB 6 . It is found in the Γ 5 model that combination of the nearest-neighbor dipole interaction and the next-nearest neighbor pseudo-dipole-type one reproduces the successive magnetic transitions observed in PrB 6 : incommensurate phase followed by a commensurate non-collinear structure with further decreasing of temperature. Inclusion of the quadrupolar interaction modifies the second-order transition to the IC phase into first order by enhancing the mode-coupling of dipole and quadrupole degrees of freedom.
Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
