Antiferromagnetic transition and electrical conductivity in α-Gd2S3

Magnetism inα-R2S3(R= Pr and Nd) single crystals

“…The single crystals of !-Pr 2 S 3 and !-Nd 2 S 3 were grown by using a chemical transport reaction method with iodine for carrier gas [2]. Identification of the powder sample and determination of the crystal orientation were performed by using X-ray (Cu K !…”

“…Recent our study on the specific heat of !-Sm 2 S 3 has clarified that successive weak ferromagnetic transitions occur at T C 1 = 3.8 K and T C 2 = 1.9 K, which will be reported elsewhere. Anomalies in the temperature dependence of the electrical resistivity #(T) for !-R 2 S 3 (R = Sm, Gd, Tb and Dy) have also been found at the temperatures near magnetic transition temperatures [2,6,9,11], especially the extremely large changes of the resistivity in narrow temperature ranges for !-Dy 2 S 3 and !-Sm 2 S 3 are noticeable. These features appear as sharp peaks in the #(T) [9,11].…”

“…Rare-earth sesquisulfides !-R 2 S 3 (R = Pr and Nd) possess an orthorhombic crystal structure having the Pnma symmetry [1,2]. The crystal structure is shown in figure 1, where S atoms are omitted for clarity.…”

“…We have reported fascinating physical properties in the isostructural compounds of !-R 2 S 3 (R = Sm, Gd, Tb and Dy) related to their magnetic transitions [2][3][4][5][6][7][8][9][10][11][12][13]. The !-Gd 2 S 3 shows an antiferromagnetic transition at T N = 9.9 K with large anisotropy [2][3][4][5]. The compounds of !-Tb 2 S 3 and !-Dy 2 S 3 demonstrate successive antiferromagnetic transitions at T N 1 = 12.5 and 11.4 K, T N 2 = 3.5 and 6.4 K, respectively [6,8].…”

Structure and optical properties of - and -cerium sesquisulfide

“…Thorough literature searches did not yield anything about a magnetic ordering of ␣-Ce 2 S 3 at low temperatures. The ␣-and ␥-phases of Gd 2 S 3 have the same magnetic ordering at low temperatures [20]. Moreover, ␣-Gd 2 S 3 and ␥-Gd 2 S 3 are isomorphic to ␣-Ce 2 S 3 and ␥-Ce 2 S 3 , respectively.…”