1,203 research outputs found
Credit Channel without the LM Curve
This paper extends Bernanke and Blinder (1988)'s macroeconomic model of credit channel to an environment where the monetary authority has control over a short-term interest rate. The comparative statics regarding changes in the market interest rate, in the required reserve ratio over bank deposits, and in the risk of public bonds are highlighted.
Phason modes in spin-density wave in the presence of long-range Coulomb interaction
We study the effect of long-range Coulomb interaction on the phason in
spin-density wave (SDW) within mean field theory. In the longitudinal limit and
in the absence of SDW pinning the phason is completely absorbed by the plasmon
due to the Anderson-Higgs mechanism. In the presence of SDW pinning or when the
wave vector {\bf q} is tilted from the chain direction, though the plasmon
still almost exhausts the optical sum rule, another optical mode appears at
, with small optical weight. This low frequency mode below
the SDW gap may be accessible to electron energy loss spectroscopy (EELS).Comment: 7 pages, Revtex 2.1, SZFKI 102/9
Credit channel without the LM curve
This paper extends Bernanke and Blinder (1988)'s macroeconomic model of credit channel to an environment where the monetary authority has control over a short-term interest rate. The comparative statics regarding changes in the market interest rate, in the required reserve ratio over bank deposits, and in the risk of public bonds are highlighted
Analysis of interdiffusion between SmFeAsO0.92F0.08 and metals for ex situ fabrication of superconducting wire
We demonstrate the fabrication of superconducting SmFeAsO1-xFx (Sm-1111)
wires by using the ex-situ powder-in-tube technique. Sm-1111 powder and a
binder composed of SmF3, samarium arsenide, and iron arsenide were used to
synthesize the superconducting core. Although the F content of Sm-1111 is
reduced in the process of ex-situ fabrication, the binder compensates by
sufficiently supplementing the F content, thereby preventing a decrease in the
superconducting transition temperature and a shrinking of the superconducting
volume fraction. Thus, in the superconducting Sm-1111 wire with the binder, the
transport critical current density reaches the highest value of ~4000 A/cm2 at
4.2 K
Impurity scattering in unconventional density waves
We have investigated the effect of nonmagnetic impurities on the
quasi-one-dimensional unconventional density wave (UDW) ground state. The
thermodynamics were found to be close to those of a d-wave superconductor in
the Born limit. Four different optical conductivity curves were found depending
on the direction of the applied electric field and on the wavevector dependence
of the gap.Comment: 14 pages, 9 figure
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