Type-I superconductivity in YbSb2 single crystals
| Title | Type-I superconductivity in YbSb2 single crystals |
| Publication Type | Journal Article |
| Year of Publication | 2012 |
| Authors | Zhao LL, Lausberg S, Kim H, Tanatar MA, Brando M, Prozorov R, Morosan E |
| Journal Title | Physical Review B |
| Volume | 85 |
| Pages | 214526 |
| Date Published | 09 |
| Type of Article | Article |
| ISBN Number | 1098-0121 |
| Accession Number | WOS:000305604600006 |
| Keywords | transition |
| Abstract | We present evidence of type-I superconductivity in YbSb2 single crystals from dc and ac magnetization, heat capacity, and resistivity measurements. The critical temperature and critical field are determined to be T-c approximate to 1.3 K and H-c approximate to 55 Oe. A small Ginzburg-Landau parameter kappa = 0.05, together with typical magnetization isotherms of type-I superconductors, small critical field values, a strong differential paramagnetic effect signal, and a field-induced change from second- to first-order phase transition, confirms the type-I nature of the superconductivity in YbSb2. A possible second superconducting state is observed in the radio-frequency susceptibility measurements, with T-c((2)) approximate to 0.41 K and H-c((2)) approximate to 430 Oe. |
| URL | <Go to ISI>://WOS:000305604600006 |
| DOI | 10.1103/PhysRevB.85.214526 |
| Alternate Journal | Phys. Rev. B |
