ar X iv : 0 90 9 . 33 58 v 1 [ co nd - m at . s up r - co n ] 1 8 Se p 20 09 Possible Microscopic Doping Mechanism in Tl - 2201

ar X iv : c on d - m at / 0 20 91 97 v 1 [ co nd - m at . s up r - co n ] 9 S ep 2 00 2 Oxygen Phonon Branches

ar X iv : 0 80 3 . 27 76 v 1 [ co nd - m at . s up r - co n ] 1 9 M ar 2 00 8 Negative conductance in driven Josephson junctions ∗

We investigate an optimal regime of negative-valued conductance, emerging in a resistively and capacitively shunted Josephson junction, which is driven simultaneously by both, a time-periodic (ac) and a constant (dc) current. We analyze the current-voltage characteristics in the regime of absolute negative conductance. We additionally explore the stability of the negative response with respect ...

ar X iv : 1 20 8 . 31 89 v 2 [ co nd - m at . s up r - co n ] 8 O ct 2 01 3 New

We have synthesized a new layered BiS2-based compound SrFBiS2. This compound has similar structure to BiS2. It is built up by stacking up SrF layers and NaCl-type BiS2 layers alternatively along the c axis. Electric transport measurement indicates that SrFBiS2 is a semiconductor. Thermal transport measurement shows that SrFBiS2 has a small thermal conductivity and large Seebeck coefficient. Fir...

ar X iv : 0 90 6 . 31 35 v 1 [ co nd - m at . s tr - e l ] 1 7 Ju n 20 09 The Kondo Effect in Ferromagnetic Atomic Contacts

M. Reyes Calvo, Joaqúın Fernández-Rossier, Juan José Palacios, David Jacob, Douglas Natelson, and Carlos Untiedt ∗ Departamento de Fisica Aplicada, Facultad de Ciencias, Universidad de Alicante, San Vicente del Raspeig, E-03790 Alicante, Spain Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08854, USA. Department of Physics and Astronomy, Rice University, Houston...

ar X iv : c on d - m at / 9 70 80 30 v 1 [ co nd - m at . s up r - co n ] 5 A ug 1 99 7 1