Crystal Growth, Transport, and Magnetic Properties of Ln₃Co₄Sn₁₃ (Ln: La, Ce) with a Perovskite‐Like Structure.

Abstract

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.

Revealing correlation effect of Co 3d electrons in La$_3$Co$_4$Sn$_{13}$ and Ce$_3$Co$_4$Sn$_{13}$ by infrared spectroscopy study

“…Figure 1 show the powder XRD patterns and the insets show the XRD patterns measured on the (110) surfaces at room temperature for the samples of La 3 Co 4 Sn 13 and Ce 3 Co 4 Sn 13 , which are consistent with the Yb 3 Rh 4 S n 13 -type Pm 3n space group as in previous studies [26][27][28][29][30][31]. For La 3 Co 4 Sn 13 and Ce 3 Co 4 Sn 13 sample, the Lattice parameters obtained from the XRD datas are a=9.6369 and 9.5934 Å, respectively, close to the previously reported value [4,7,12,22,[26][27][28][29][30][31], indicating the good quality of our samples.…”

“…For La 3 Co 4 Sn 13 , metallic temperature dependence is observed in the whole temperature range. A very weak kink appear near 150 K. The observations are similar to the published data in the literature [7,26]. Cheung et al suggested that T * is associated with a second-order structural transition with q=(0.5, 0.5, 0) [32].…”

“…The behavior was explained as due to the Kondo impurity mechanism [21]. Comparing with La 3 Co 4 Sn 13 , a more distinct anomaly is observed at T * ≈ 150 K. The observations are similar to the published data in the literature [7,12,21,26,27,31,33,34]. A recent studies of Ce3Co4Sn13 explained this distinct anomaly behavior as a result of a possible local distortion of the trigonal Sn2 prisms around Co, which could change the electronic structure near the Fermi level [7,27,28].…”

“…The X1 atoms locate the origin of the unit cell and (X1)(X2) 12 form an edge-sharing icosahedra, while the T atom and six X2 atoms form the T (X2) 6 trigonal prisms. Superconductivity, charge density wave, complex magnetism, heavy fermions as well as mixed-valence behaviors have been found in this class of materials [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18]. Many of the Sn-based compounds, for example A 3 T 4 Sn 13 (A=La, Sr, Ca and T=Rh and Ir), show interesting coexistence of structural phase transition and superconductivity.…”

Electronic and atomic structures of the Sr3Ir4Sn13 single crystal: A possible charge density wave material

“…The family of ternary stannide materials with an R 3 T 4 Sn 13 stoichiometry, where R  = La, Sr or Ca and T  = Ir, Rh or Co, have recently been studied owing to their interesting characteristics, such as superconductivity, heavy fermions, complex magnetism, electricity and thermoelectric properties78910111213141516171819202122232425. Superconducting properties of the Sr 3 Ir 4 Sn 13 (SIS) and Sr 3 Rh 4 Sn 13 (SRS) single crystals were recently observed with T C  ~ 5 K and ~4.7 K, respectively791620.…”