Anisotropic physical properties of PrRhAl4Si2 single crystal a non-magnetic singlet ground state compound
Abstract
We have grown the single crystal of PrRhAl4Si2, which crystallizes in the tetragonal crystal structure. From the low temperature physical property measurements like, magnetic susceptibility, magnetization, heat capacity and electrical resistivity, we found that this compound does not show any magnetic ordering down to 70~mK. Our crystal field calculations on the magnetic susceptibility and specific heat measurements reveal that the 9-fold degenerate (2J+1) levels of Pr atom in PrRhAl4Si2, splits into 7 levels, with a singlet ground state and a well separated excited doublet state at 123~K, with a overall level splitting energy of 320~K.
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