Physical phenomena in ytterbium- and cerium-based compounds

Autor: Fikáček, Jan
Přispěvatelé: Sechovský, Vladimír, Arnold, Zdeněk, Andreev, Alexander
Jazyk: angličtina
Rok vydání: 2014
Předmět:
Popis: This work contains a study of CeRuSn, which undergoes two structural transitions at 290 K and 256 K both connected with large temperature hysteresis. During the transitions the lattice shrinks along the c axis. At low temperatures the compound orders antiferromagnetically below 2.8(1) K. A strong magnetocrystalline anisotropy is caused by very shortened Ce-Ru separations pointing approximately along the c axis. Due to a strong hybridization, two thirds of Cerium atoms are in a non integer valence state. For the first time synthesized single-crystals of YbPt2Si2 a Yb2Pt3Si5 show no magnetic ordering. A maximum, which is visible in the temperature dependences of magnetic susceptibility originate in thermal population of the magnetic Yb3+ state. Powered by TCPDF (www.tcpdf.org)
Databáze: OpenAIRE