M. Tomita

activity

20092013

collaborators

8 papers

cond-mat.supr-con2013

Pressure-induced superconductivity in EuFe2As2 without a quantum critical point: magnetotransport and upper critical field measurements under high pressure

Nobuyuki Kurita, Motoi Kimata, Kota Kodama +7

Resistivity and Hall effect measurements of EuFe $_{2}$ As $_{2}$ up to 3.2\,GPa indicate no divergence of quasiparticle effective mass at the pressure $P_{c}$ where the magnetic a…

cond-mat.supr-con2013

Fermi surface in KFe2As2 determined via de Haas-van Alphen oscillation measurements

Taichi Terashima, Nobuyuki Kurita, Motoi Kimata +14

We have completely determined the Fermi surface in KFe $_{2}$ As $_{2}$ via de Haas-van Alphen (dHvA) measurements. Fundamental frequencies $ε$ , $α$ , $ζ$ , and $β$ are observed in KFe $_{2}$ A…

cond-mat.supr-con2013

Hysteretic superconducting resistive transition in Ba0.07K0.93Fe2As2

Taichi Terashima, Kunihiro Kihou, Megumi Tomita +7

We have observed hysteresis in superconducting resistive transition curves of Ba $_{0.07}$ K $_{0.93}$ Fe $_{2}$ As $_{2}$ ( $T_{c} \sim$ 8 K) below about 1 K for in-plane fields. The hysteresis i…

cond-mat.supr-con2011

Phase Diagram of Pressure-Induced Superconductivity in EuFe2As2 Probed by High-Pressure Resistivity up to 3.2 GPa

Nobuyuki Kurita, Motoi Kimata, Kota Kodama +7

We have constructed a pressure $-$ temperature ( $P - T$ ) phase diagram of $P$ -induced superconductivity in EuFe $_{2}$ As $_{2}$ single crystals, via resistivity ( $ρ$ ) measurements up to 3.2…

cond-mat.supr-con2011

Complete Fermi surface in BaFe $_{2}$ As $_{2}$ observed via Shubnikov-de Haas oscillation measurements on detwinned single crystals

Taichi Terashima, Nobuyuki Kurita, Megumi Tomita +12

We show that the Fermi surface (FS) in the antiferromagnetic phase of BaFe $_{2}$ As $_{2}$ is composed of one hole and two electron pockets, all of which are three dimensional and closed…

cond-mat.supr-con2010

Upper Critical Field of Pressure-Induced Superconductor EuFe $_{2}$ As $_{2}$

Nobuyuki Kurita, Motoi Kimata, Kota Kodama +7

We have carried out high-field resistivity measurements up to 27\,T in EuFe $_{2}$ As $_{2}$ at $P$ \,=\,2.5\,GPa, a virtually optimal pressure for the $P$ -induced superconductivity, where…

Pressure-induced superconductivity in EuFe2As2 without a quantum critical point: magnetotransport and upper critical field measurements under high pressure

Fermi surface in KFe2As2 determined via de Haas-van Alphen oscillation measurements

Hysteretic superconducting resistive transition in Ba0.07K0.93Fe2As2

Phase Diagram of Pressure-Induced Superconductivity in EuFe2As2 Probed by High-Pressure Resistivity up to 3.2 GPa

Complete Fermi surface in BaFe2​As2​ observed via Shubnikov-de Haas oscillation measurements on detwinned single crystals

Upper Critical Field of Pressure-Induced Superconductor EuFe2​As2​

Complete Fermi surface in BaFe $_{2}$ As $_{2}$ observed via Shubnikov-de Haas oscillation measurements on detwinned single crystals

Upper Critical Field of Pressure-Induced Superconductor EuFe $_{2}$ As $_{2}$