Physical and magnetic properties of Ba(Fe(1-x)Mn(x))(2)As(2) single crystals
| Title | Physical and magnetic properties of Ba(Fe(1-x)Mn(x))(2)As(2) single crystals |
| Publication Type | Journal Article |
| Year of Publication | 2011 |
| Authors | Thaler A, Hodovanets H, Torikachvili MS, Ran S, Kracher A, Straszheim W, Yan JQ, Mun E, Canfield PC |
| Journal Title | Physical Review B |
| Volume | 84 |
| Pages | 144528 |
| Date Published | 10 |
| Type of Article | Article |
| ISBN Number | 1098-0121 |
| Accession Number | WOS:000296667600019 |
| Keywords | bafe2as2, superconductivity |
| Abstract | Single crystals of Ba(Fe(1-x)Mn(x))(2)As(2), 0 < x < 0.148, have been grown and characterized by structural, magnetic, electrical transport, and thermopower measurements. Although growths of single crystals of Ba(Fe(1-x)Mn(x))(2)As(2) for the full 0 <= x <= 1 range were made, we find evidence for phase separation (associated with some form of immiscibility) starting for x > 0.1-0.2. Our measurements show that whereas the structural/magnetic phase transition found in pure BaFe(2)As(2) at 134 K is initially suppressed by Mn substitution, superconductivity is not observed at any substitution level. Although the effect of hydrostatic pressure up to 20 kbar in the parent BaFe(2)As(2) compound is to suppress the structural/magnetic transition at the approximate rate of 0.9 K/kbar, the effects of pressure and Mn substitution in the x = 0.102 compound are not cumulative. Phase diagrams of transition temperature versus substitution concentration x based on electrical transport, magnetization, and thermopower measurements have been constructed and compared to those of the Ba(Fe(1-x)TM(x))(2)As(2) (TM=Co and Cr) series. |
| DOI | 10.1103/PhysRevB.84.144528 |
| Alternate Journal | Phys. Rev. B |
