Structural, electronic, magnetic, and thermal properties of single-crystalline UNi(0.5)Sb(2)
| Title | Structural, electronic, magnetic, and thermal properties of single-crystalline UNi(0.5)Sb(2) |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Torikachvili MS, Davis BK, Kothapalli K, Nakotte H, Schultz AJ, Mun ED, Bud'ko SL |
| Journal Title | Physical Review B |
| Volume | 84 |
| Pages | 205114 |
| Date Published | 11 |
| Type of Article | Article |
| ISBN Number | 1098-0121 |
| Accession Number | WOS:000296911900002 |
| Keywords | diantimonide, growth, LA-ND, RAGSB2 R, SM, TRANSPORT |
| Abstract | We studied the properties of the antiferromagnetic (AFM) UNi(0.5)Sb(2) (T(N) approximate to 161 K) compound in Sb flux-grown single crystals by means of measurements of neutron diffraction, magnetic susceptibility (chi), specific heat (C(p)), thermopower (S), thermal conductivity (kappa), linear thermal expansion (Delta L/L), and electrical resistivity (rho) under hydrostatic pressures (P) up to 22 kbar. The neutron diffraction measurements revealed that the compound crystallizes in the tetragonal P4(2)/nmc structure, and the value of the U-moments yielded by the data at 25 K is approximate to 1.85 +/- 0.12 mu(B)/U-ion. In addition to the features in the bulk properties observed at T(N), two other hysteretic features centered near 40 and 85 K were observed in the measurements of chi, S, rho, and Delta L/L. Hydrostatic pressure was found to raise T(N) at the rate of approximate to 0.76 K/kbar, while suppressing the two low temperature features. These features are discussed in the context of Fermi surface and hybridization effects. |
| DOI | 10.1103/PhysRevB.84.205114 |
| Alternate Journal | Phys. Rev. B |
