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Search Publications by: Daniel T Pierce (Assoc)

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Displaying 51 - 75 of 296

Exchange Coupling in Magnetic Multilayers Grown on Iron Whiskers

August 20, 1999
Author(s)
John Unguris, Robert Celotta, D Tulchinsky, Daniel T. Pierce
Meaningful tests of theoretical predictions of magnetic multilayer properties require the fabrication of multilayers with nearly the same atomic scale precision as the theoretical models. Multilayers grown epitaxially on single crystal Fe whisker

Multilayers: Interlayer Coupling

August 1, 1999
Author(s)
P Grunberg, Daniel T. Pierce
The extensive research done on interlayer exchange coupling in transition metal multilayers has resulted in a deep understanding of this coupling and a remarkable agreement between theoretical results and measurements. The coupling between two magnetic

Polarized Light Emission from the Metal-Metal STM Junction

January 1, 1998
Author(s)
Daniel T. Pierce, Angela Davies, Joseph A. Stroscio, Robert Celotta
The polarization of light emitted during inelastic tunneling of electrons into both Au(111) and Fe(001) using W(111) tips in an STM junction has been fully characterized by measuring the Stokes parameters. The emitted light for both Au(111) and Fe(001) is

Observations of Alloying in the Growth of Cr on Fe(001)

January 1, 1997
Author(s)
Angela Davies, Joseph A. Stroscio, Daniel T. Pierce, John Unguris, Robert Celotta
Using scanning tunneling microscopy, we observe the alloying of Cr with an Fe(001) substrate for various coverages at two temperatures. At low Cr coverage, the alloy consists of individual Cr impurities surrounded by Fe. Elemental identification is

Scanning Electron Microscopy with Polarization Analysis (SEMPA)

January 1, 1997
Author(s)
John Unguris, M Scheinfein, Michael H. Kelley, A Gavrin, Robert Celotta, Daniel T. Pierce
Scanning Electron Microscopy with Polarization Analysis (SEMPA) is a technique for the high spatial resolution imaging of magnetic microstructure. It employs a Scanning Electron Microscope (SEM) to create a finely focused electron beam on the surface of a

Atomic-scale Observations of Alloying at the Cr-Fe(001) Interface

January 1, 1996
Author(s)
Angela Davies, Joseph A. Stroscio, Daniel T. Pierce, Robert Celotta
While much progress has been made using epitaxial growth of Fe/Cr/Fe structures to study magnetic exchange coupling, a number of anomalies have arisen in studies of this model system. Using scanning tunneling microscopy and spectroscopy to investigate Cr

Coarsening of Unstable Surface Features During Fe(001) Homoepitaxy

January 1, 1995
Author(s)
Joseph A. Stroscio, Daniel T. Pierce, Mark D. Stiles, A Zangwill, L Sander
The evolution of the surface profile during homoepitaxial growth of Fe(001) is studied by scanning tunnelling microscopy and reflection high energy electron diffraction. The observed morphology exhibits a non-self affine collection of mound-like features