Second-Harmonic Generation (SHG) from Si(111) and Cu(111) Surfaces

  • Tom H.

We use the polarization properties of SHG to study the electronic properties of the Si(111)-7x7 surface. By isolating 3 elements of the nonlinear SH susceptibility tensor and noting their change on annealing and oxidizing the surface, we find: 1) SH excited with 1.17 eV radiation is mostly sensitive to an ...

Bulk Superconductivity at 36K in La sub (1.8) Sr sub (0.2) CuO sub 4

  • Batlogg B.
  • Cava R.
  • Rietman E.
  • Vandover R.

We report the results of resistivity and magnetic susceptibility measurements in La sub (2-x)Sr sub (x)CuO sub 4 for x<0.3.

Key ISDN Technologies and Unresolved Issues

  • Wyndrum R.

ISDN, of course, is in its infancy, and its many parents have different visions of its teenage years and adulthood. While general service availability is doubtful before the 1990's plans for several field experiments and service trials, in the Bell Operating Companies and various national PTT's, were reported at ISDN ...

InGaAsP Distributed Feedback Lasers

  • Temkin H.

no abstract provided

Distributed Computing and Communications in Eighth Edition Unix

  • Weinberger P.

This talk will discuss the new features in the 8th edition: file system types and streams. These can be combined in interesting ways to provide protocol independent network services that fit cleanly into the Unix framework. They also introduce new problems connected with intermachine consistency.

Two Interacting Kondo Impurities

  • Varma C.

The RKKY interaction between two magnetic impurities embedded in a metal has an infrared divergence (analogous to the Kondo divergence) in fourth order in the exchange interaction. The scaling of the RKKY in the whole coupling region is described and its characteristic temperature estimated.

Heavy, Fermi-Liquids

  • Varma C.

no abstract provided

Lattice Parameter Measurement in Quaternary (InGaAsP) Layers on InP Substrates using Convergent Beam Electron Diffraction

  • Chu S.
  • Joy D.
  • Maher D.
  • Nakahara S.
  • Twigg M.

Lattice Parameter measurement of quaternary (InGaAsP) layers, deposited on InP substrates, by convergent beam electron diffraction (CBED) may ultimately prove useful in assessing the quality of optical devices.

Dry Development of Resist Images

  • Taylor G.

no abstract provided

Dry Development of Resist Images

  • Taylor G.

no abstract provided

An Off-Line Robot Program Development Environment

  • Pinson E.

no abstract provided

Physics at AT&T Bell Laboratories

  • Patel C.

no abstract provided

Lightwave LANs

  • Knerr R.

We plan to discuss the fiber and electrooptical components available for various lightwave LANs. We then compare the different LAN architectures and describe their suitability for fiber implementation.

Fractional Quantum Numbers in Solid State Physics

  • Stormer H.

no abstract provided

Fractional Quantum Numbers in Solid State Physics

  • Stormer H.

no abstract provided