1 Ocak 2015 Dergi makalesi Açık Erişim

Guler, Nilay Kantarci; Ozcelik, Bekir; Ekicibil, Ahmet; Onar, Kubra; Yakinci, M. Eyyuphan; Okazaki, H.; Takeya, H.; Takano, Y.

Citation Style Language JSON

{
  "DOI": "10.1016/j.matchemphys.2015.08.037", 
  "abstract": "We have synthesized the superconducting KxFe2-ySe2 (x = 0.8) crystal by using the one step technique. SEM images demonstrate terrace-like structures on the surface and the sample contains two phases. XRD pattern gives the (00l) peaks. The main peaks are indexed to the I4/m space group and the lattice parameter c is calculated to be 13.94076 angstrom. ZFC magnetization measurement exhibits a very sharp transition which indicates the presence of superconductivity in the crystal. The superconducting transition temperature, T-c(mag), obtained from magnetization measurement is estimated to be 31 K. The critical current value, Jc(0), deduced from the M-H loops for sample is approximately 9 x 10(4) A/cm(2) at 5 K. From magnetoresistivity measurement the T-c, T-c(onset) and T-c(offset) temperatures at the absence of the external magnetic field are found as 32.2, 33.1 K and 31.5 K, respectively. The calculated flux pinning or activation energy U is around 0.46 eV for 0 T. (C) 2015 Elsevier B.V. All rights reserved.", 
  "author": [
    {
      "family": "Guler", 
      "given": " Nilay Kantarci"
    }, 
    {
      "family": "Ozcelik", 
      "given": " Bekir"
    }, 
    {
      "family": "Ekicibil", 
      "given": " Ahmet"
    }, 
    {
      "family": "Onar", 
      "given": " Kubra"
    }, 
    {
      "family": "Yakinci", 
      "given": " M. Eyyuphan"
    }, 
    {
      "family": "Okazaki", 
      "given": " H."
    }, 
    {
      "family": "Takeya", 
      "given": " H."
    }, 
    {
      "family": "Takano", 
      "given": " Y."
    }
  ], 
  "container_title": "MATERIALS CHEMISTRY AND PHYSICS", 
  "id": "77311", 
  "issued": {
    "date-parts": [
      [
        2015, 
        1, 
        1
      ]
    ]
  }, 
  "page": "157-162", 
  "title": "Structure and physical properties of iron-selenide KxFe2-ySe2", 
  "type": "article-journal", 
  "volume": "164"
}