TY - JOUR
T1 - Magnetic and transport properties of iron-platinum arsenide Ca 10(Pt 4-δAs 8)(Fe 2-xPt xAs 2) 5 single crystal
AU - Ding, Qing Ping
AU - Tsuchiya, Yuji
AU - Mohan, Shyam
AU - Taen, Toshihiro
AU - Nakajima, Yasuyuki
AU - Tamegai, Tsuyoshi
PY - 2012/3/14
Y1 - 2012/3/14
N2 - We report superconducting properties of single crystalline Ca 10(Pt 4-δAs 8)(Fe 2-xPt xAs 2) 5 by x-ray diffraction, magnetization, resistivity, and magneto-optical imaging measurements. The magnetization measurements reveal a fish-tail hysteresis loop and relatively high critical current density J c ∼ 0.8 × 105 A/cm2 at low temperatures. The exponential temperature dependence of J c, which arises from the nonlinear effective flux-creep activation energy, has been observed. The upper critical field determined by resistive transition shows a relatively large anisotropy. The magneto-optical images reveal a homogenous current flow within the crystal.
AB - We report superconducting properties of single crystalline Ca 10(Pt 4-δAs 8)(Fe 2-xPt xAs 2) 5 by x-ray diffraction, magnetization, resistivity, and magneto-optical imaging measurements. The magnetization measurements reveal a fish-tail hysteresis loop and relatively high critical current density J c ∼ 0.8 × 105 A/cm2 at low temperatures. The exponential temperature dependence of J c, which arises from the nonlinear effective flux-creep activation energy, has been observed. The upper critical field determined by resistive transition shows a relatively large anisotropy. The magneto-optical images reveal a homogenous current flow within the crystal.
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U2 - 10.1103/PhysRevB.85.104512
DO - 10.1103/PhysRevB.85.104512
M3 - Article
AN - SCOPUS:84858427681
SN - 0163-1829
VL - 85
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 10
M1 - 104512
ER -