Title :
Low-temperature magnetic ordering and 4f electrons effect in high-T c DyBa2Cu3O7-δ superconducting single crystal
Author :
Bunda, V. ; Orendac, M. ; Orendacova, A. ; Feher, A. ; Djakonov, V.P.
Author_Institution :
Dept. of Phys. of Semicond., Uzhgorod State Univ., Russia
fDate :
3/1/1994 12:00:00 AM
Abstract :
The results of differential scanning calorimetry (DSC) from 320 K to 870 K and specific heat measurements from 0.1 K to 2 K are reported. DSC revealed “ortho(P/mmm)-para(P4/nmm)” structural phase transition at 690 K. The λ like anomaly in the specific heat curve at Tm=0.72 K is attributed to the antiferromagnetic ordering of Dy3+ ions and the crystalline field effect
Keywords :
antiferromagnetic properties of substances; barium compounds; crystal field interactions; dysprosium compounds; high-temperature superconductors; magnetic properties of substances; solid-state phase transformations; specific heat of solids; thermal analysis; 0.1 to 2 K; 320 to 870 K; 4f electrons effect; 690 K; DSC; Dy3+ ions; DyBa2Cu3O7-δ; DyBa2Cu3O7; antiferromagnetic ordering; crystalline field effect; differential scanning calorimetry; high-Tc superconducting single crystal; low-temperature magnetic ordering; specific heat curve; specific heat measurements; structural phase transition; Antiferromagnetic materials; Calorimetry; Electrons; Extraterrestrial measurements; Magnetic properties; Magnetic separation; Physics; Superconducting magnets; Temperature dependence; Temperature distribution;
Journal_Title :
Magnetics, IEEE Transactions on
