G. Papavassiliou

activity

20002014

^{11}

B NMR study of Mg

_{1 - x}

_{x}

_{2}

superconductors

23 citations · 46 across the 8 of their papers we have counts for

collaborators

8 papers

cond-mat.mtrl-sci2014★ 6 cited

Molecular Dependence of the Large Seebeck Effect in τ-type Organic Conductors

Hirohito Aizawa, Kazuhiko Kuroki, Harukazu Yoshino +3

We study the Seebeck effect in the $τ$ -type organic conductors, $τ$ -(EDO- $S$ , $S$ -DMEDT-TTF) $_{2}$ (AuBr $_{2}$ ) $_{1 + y}$ and $τ$ -(P- $S$ , $S$ -DMEDT-TTF) $_{2}$ (AuBr $_{2}$ ) $_{1 + y}$ , where…

cond-mat.mtrl-sci2010★ 6 cited

Thermoelectric figure of merit of tau-type conductors of several donors

H. Yoshino, H. Aizawa, K. Kuroki +3

Dimensionless thermoelectric figure of merit $Z T$ is investigated for two-dimensional organic conductors $τ - (E D O - S, S - D M E D T - T T F)_{2} (A u I_{2})_{1 + y}$ , $τ$ -(EDT-S,S-DMEDT-TTF)_2(AuI_2)_{1…

cond-mat.supr-con2005

Mössbauer study of Na $_{0.82}$ CoO $_{2}$ (doped by 1% $^{57}$ Fe)

M. Pissas, V. Psycharis, D. Stamopoulos +3

We studied by Mössbauer spectroscopy the Na $_{0.82}$ CoO $_{2}$ compound using 1% $^{57}$ Fe as a local probe which substitutes for the Co ions. Mössbauer spectra at T=300 K revealed tw…

cond-mat.str-el2004

Domain orbital state in ferromagnetic insulating La $_{0.825}$ Ca $_{0.175}$ Mn $_{0.99}$ $^{57}$ Fe $_{0.01}$ O $_{3}$ compound

M. Pissas, G. Papavassiliou, E. Devlin +2

Using Mössbauer and EPR spectroscopy we have studied the insulating ferromagnetic La $_{1 - x}$ Ca $_{x}$ Mn $_{0.99}$ $^{57}$ Fe $_{0.01}$ O $_{3}$ ( $x = 0.175$ ) compound prepared in air and reduce…

cond-mat2002★ 11 cited

High magnetic field-induced insulating phase in an organic conductor

J. S. Brooks, D. Graf, E. S. Choi +4

We report electrical transport, skin depth, and magnetocaloric measurements in the tau-series of organic conductors at very high magnetic fields. Above 36 T these materials show a…

cond-mat.str-el2002

Disorder-driven magnetic field-dependent phases in an organic conductor

K. Storr, D. Graf, J. S. Brooks +3

We report inter-plane ( $R_{z z}$ ) electrical transport measurements in the \tp series of organic conductors at very high magnetic fields. In the field range between 36 and 60 T $R_{…