activity
20062012
most citedEvolution from Itinerant Antiferromagnet to Unconventional Superconductor with Fluorine Doping in La(O_{1-x}F_{x})FeAs Revealed by ^{75}As and ^{139}La Nuclear Magnetic Resonance

298 citations · 2.8k across the 38 of their papers we have counts for

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Showing 2008Show all

27 papers · 1 filter

cond-mat.supr-con2008★ 37 cited

Comparison of crystal structures and effects of Co substitution in a new member of Fe-1111 superconductor family AeFeAsF(Ae = Ca and Sr): a possible candidate for higher Tc superconductor

Takatoshi Nomura, Yasunori Inoue, Satoru Matsuishi +5

We refined crystal structures of newly found members of the Fe-1111 superconductor family, CaFe\_{1-x}Co\_{x}AsF and SrFe\_{1-x}Co\_{x}AsF (x = 0, 0.06, 0.12) by powder synchrotron…

cond-mat.supr-con2008★ 115 cited

Psuedo-isotropic upper critical field in cobalt-doped SrFe2As2 epitaxial films

S. A. Baily, Y. Kohama, H. Hiramatsu +4

The temperature and angular dependence of the upper critical field (Hc2) is reported for cobalt-doped SrFe2As2 epitaxial films between Tc and 0.5 K in pulsed magnetic fields up to…

cond-mat.supr-con2008★ 23 cited

75As-NMR studies on La FeAsO1-xFx (x=0.14) under a pressure of 3GPa

K. Tatsumi, N. Fujiwara, H. Okada +4

75As-nuclear magnetic resonance (NMR) on an iron-based superconductor LaFeAsO1-xFx (x=0.14) was performed under a pressure of 3GPa. Enhancement of superconducting transition temper…

cond-mat.supr-con2008★ 55 cited

Effect of 3d Transition Metal Doping on the Superconductivity in Quaternary Fluoroarsenide CaFeAsF

Satoru Matsuishi, Yasunori Inoue, Takatoshi Nomura +3

We examined doping effect of 3d transition metal elements (TM: Cr, Mn, Co, Ni, and Cu) at the Fe site of a quaternary fluoroarsenide CaFeAsF, an analogue of 1111-type parent compou…

cond-mat.supr-con2008★ 73 cited

Cobalt-substitution-induced Superconductivity in a New Compound with ZrCuSiAs-type Structure, SrFeAsF

Satoru Matsuishi, Yasunori Inoue, Takatoshi Nomura +2

We have synthesized a quaternary fluoroarsenide SrFeAsF with the ZrCuSiAs-type structure (P4/nmm, a = 0.3999 and c = 0.8973 nm), which is composed of an alternately stacked (FeAs)-…

cond-mat.supr-con2008★ 70 cited

Pressure-induced superconductivity in Iron pnictide compound SrFe2As2

K. Igawa, H. Okada, H. Takahashi +6

Electrical resistivity under high pressure have been measured on nominally pure SrFe2As2 up to 14 GPa. The resistivity drop appeared with increasing pressure, and we clearly observ…