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Journals

Correlations of Modulation Noise with Magnetic Microstructure and Intergranular Interactions for CoCrTa and CoNi Thin Film Media

January 1, 1991

Author(s)

Mahbub R. Khan, S Y. Lee, S L. Duan, J L. Pressesky, Neil Heiman, D E. Speliotis, M Scheinfein

This paper reports on two thin-film media alloys Co 86Cr 12Ta 2 and Co 75Ni 25 which have very different noise characteristics. The magnetic microstructure of...

Low-Energy Electron Dose-Distribution Measurements with Thin-Film Dosimeters

January 1, 1991

Author(s)

W L. Mclaughlin, H M. Khan, Mahnaz Farahani, M L. Walker, James M. Puhl, Stephen M. Seltzer, Christopher G. Soares, C E. Dick

Observation of Two Different Oscillation Periods in the Exchange Coupling of Fe/Cr/Fe(100)

January 1, 1991

Author(s)

John Unguris, Robert Celotta, Daniel T. Pierce

Oscillations of ferromagnetic to antiferromagnetic exchange coupling between two Fe layers separated by a Cr spacer of linearly increasing thickness were...

Theory of Ballistic Electron Emission Microscopy Spectroscopy of NiSi₂/Si(111) Interfaces

January 1, 1991

Author(s)

Mark D. Stiles, D Hamann

We discuss theoretical calculations of ballistic-electron- emission-microscopy spectra based in part on a first-principles computation of the transmission...

Scanning Electron Microscopy with Polarization Analysis (SEMPA) Studies of Domains, Domain Walls and Magnetic Singularities at Surfaces and in Thin Films

January 1, 1991

Author(s)

M Scheinfein, John Unguris, M Aeschlimann, Daniel T. Pierce, Robert Celotta

Scanning Electron Microscopy with Polarization Analysis (SEMPA) is used to investigate the surface magnetic microstructure of domain walls in thin permalloy...

Coulomb Blockade in Single Tunnel-Junctions: Quantum Mechanical Effects of the Electromagnetic Environment

January 1, 1991

Author(s)

K Flensberg, S Girvin, M Jonson, David R. Penn, Mark D. Stiles

We discuss the interaction of a tunneling electron with its equilibrium electromagnetic environment. The environment of an isolated tunnel junction is modeled...

Micromagnetics of Domain Walls At Surfaces

January 1, 1991

Author(s)

M Scheinfein, John Unguris, J L. Blue, Kevin Coakley, Daniel T. Pierce, Robert Celotta, P J. Ryan

High-spatial-resolution magnetization maps of ferromagnetic surfaces are generated with use of scanning electron microscopy with polarization analysis (SEMPA)...

Geometric and Electronic Properties of Cs Structures on III-V (110) Surfaces: From 1-D and 2-D Insulators to 3-D Metals

January 1, 1991

Author(s)

L Whitman, Joseph A. Stroscio, Robert A. Dragoset, Robert Celotta

We report the structural and electronic properties of Cs adsorbed on room-temperature GaAs and InSb (110) surfaces as observed with scanning tunneling...

Insulating Cs Overlayer on InSb(110)

January 1, 1991

Author(s)

L Whitman, Joseph A. Stroscio, Robert A. Dragoset, Robert Celotta

Cesium overlayers on room-temperature InSb(110) have been studied with scanning tunneling microscopy and spectroscopy. A two-dimensional (2D) overlayer is...

Experimental Constraints on Some Mechanisms for High-Temperature Superconductivity

January 1, 1991

Author(s)

I Barbee, Marvin Cohen, David R. Penn

Since its discovery, many mechanisms have been suggested to explain the phenomenon of high-temperature superconductivity in oxides. We propose that experimental...

A Scanning Tunneling Microscopy Study of Clean and Cs-Covered InSb(110)

January 1, 1991

Author(s)

L Whitman, Joseph A. Stroscio, Robert A. Dragoset, Robert Celotta

AB Scanning tunneling microscopy has been employed to study clean and Cs-covered InSb(110) surfaces. Atomic-resolution images of both the filled and empty...

Calculations of Electron Inelastic Mean Free Paths II. Data for 27 Elements over the 50-2000 eV Range

January 1, 1991

Author(s)

Shigeo Tanuma, Cedric J. Powell, David R. Penn

We report calculations of electron inelastic mean free paths (IMFPs) for 50-2000 eV electrons in a group of 27 elements (C, Mg, Al, Si, Ti, V, Cr, Fe, Ni, Cu, Y...

Manipulation of Adsorbed Atoms and Creation of New Structures on Room-temperature Surfaces with a Scanning Tunneling Microscope

January 1, 1991

Author(s)

L Whitman, Joseph A. Stroscio, Robert A. Dragoset, Robert Celotta

A general method of manipulating adsorbed atoms and molecules on room-temperature surfaces with the use of a scanning tunneling microscope is described. By...

Anharmonic Phonons and the Isotope Effect in Superconductivity

January 1, 1991

Author(s)

V Crespi, Marvin Cohen, David R. Penn

Anharmonic interionic potentials are examined in an Einstein model to study the unusual isotope-effect exponents for the high-T(c) oxides. The mass dependences...

Limitations on a Combined Phonon -- Non-Phonon Mechanism for Superconductivity Bi₂Sr₃Ca₁Cu₂O_x

January 1, 1991

Author(s)

I Barbee, Marvin Cohen, David R. Penn

Despite the large number of theories proposed to explain high-temperature superconductivity, no clear explanation of its origin exists. Experimental data such...

Calculations of Electron Inelastic Mean Free Paths III. Data for 15 Inorganic Compounds over the 50-2000 eV Range

January 1, 1991

Author(s)

Shigeo Tanuma, Cedric J. Powell, David R. Penn

We report calculations of electron inelastic mean free paths (IMFPs) of 50-2000 eV electrons in a group of 15 inorganic compounds (Al 2O 3, GaAs, GaP, InAs, InP...

A System for the Study of Magnetic Materials and Magnetic Imaging with the STM

January 1, 1991

Author(s)

P First, Joseph A. Stroscio, Daniel T. Pierce, Robert A. Dragoset, Robert Celotta

A report of work in progress to determine the feasibility of imaging the magnetization of ferromagnetic samples with the scanning tunneling microscope (STM) is...