TY - JOUR
T1 - Direct determination of radiation damage profiles in the order-disorder alloy Pt3Co irradiated with low-energy (500-2500 eV) Ne+ ions
AU - Aidelberg, Jacob
AU - Seidman, David N.
N1 - Funding Information:
In this paper we present a new approach for the direct determination of a radiation damage profile in order-disorder alloys. The approach was applied to the PtaCo system and it can also be used for other order-disorder alloys. The measurement of the radia- * This research was supported by the U.S. Department of Energy under contract No. EY-76-S-02-3158. * 000. Addi-tional support was received from the National Science Foundation through the use of the technical facilities of the Materials Science Center at Cornell University.
PY - 1980/3/15
Y1 - 1980/3/15
N2 - A new approach was developed, employing the field-on microscope technique, to determine directly radiation damage profiles in order-disorder alloys; the approach was applied to Pt3Co. The experiment consisted of irradiating in situ, at 30 K, Pt3Co specimens with low-energy (500-2500 eV) Ne+ ions. The specimens were subsequently dissected on an atom-by-atom basis employing the pulse field-evaporation technique. The latter procedure made it possible to determine the change in the Bragg-Williams long-range order parameter (S) as a function of distance from the irradiated surface. The measurement of δSd, where the subscript indicates damage, versus distance (x) constituted a radiation damage profile; the depth resolution of this profile was ≈2 A ̊. The mean depth of damage (xd) varied from ≈9 to 20 A ̊ and the standard deviation or straggling (δx) varied from ≈6 to 18 A ̊ as the implantation energy was increased from 500 to 2500 eV. The radiation damage profiles have also been used to determine the effective stopping power of Ne in Pt3Co.
AB - A new approach was developed, employing the field-on microscope technique, to determine directly radiation damage profiles in order-disorder alloys; the approach was applied to Pt3Co. The experiment consisted of irradiating in situ, at 30 K, Pt3Co specimens with low-energy (500-2500 eV) Ne+ ions. The specimens were subsequently dissected on an atom-by-atom basis employing the pulse field-evaporation technique. The latter procedure made it possible to determine the change in the Bragg-Williams long-range order parameter (S) as a function of distance from the irradiated surface. The measurement of δSd, where the subscript indicates damage, versus distance (x) constituted a radiation damage profile; the depth resolution of this profile was ≈2 A ̊. The mean depth of damage (xd) varied from ≈9 to 20 A ̊ and the standard deviation or straggling (δx) varied from ≈6 to 18 A ̊ as the implantation energy was increased from 500 to 2500 eV. The radiation damage profiles have also been used to determine the effective stopping power of Ne in Pt3Co.
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U2 - 10.1016/0029-554X(80)91050-2
DO - 10.1016/0029-554X(80)91050-2
M3 - Article
AN - SCOPUS:49149144594
VL - 170
SP - 413
EP - 417
JO - Nuclear Instruments and Methods
JF - Nuclear Instruments and Methods
SN - 0029-554X
IS - 1-3
ER -