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Title: Finite-size effects in Cu-Mn spin glasses

Abstract

Finite-size effects in the spin glass (SG) Cu-Mn have been studied using magnetron-sputtered multilayer systems (MS's) of the form Cu{sub 1{minus}{ital x}}Mn{sub {ital x}}/Cu and Cu{sub 1{minus}{ital x}}Mn{sub {ital x}}/Si with {ital x}=0.04, 0.07, 0.14 (and some data for 0.21). The SG layers have widths {ital W}{sub Cu-Mn} ranging from 10 000 to 20 A and are separated and magnetically decoupled from each other by interlayers of either 300 A of Cu or 70 A of Si. The MS's continue to show SG peaks in the zero-field-cooled (ZFC) dc'' magnetic susceptibility {chi} down to {ital W}{sub Cu-Mn}=20 A. The quasistatic freezing temperature {ital T}{sub {ital f}} (defined as the location of the peak in {chi}) begins to decrease from its bulk value, {ital T}{sub {ital f}}{sup {ital b}}, at {ital W}{sub Cu-Mn}{approx}1000 A and approaches zero for SG thicknesses 0{le}{ital W}{sub Cu-Mn}{le}10 A with Cu interlayers or 30 A{le}{ital W}{sub Cu-Mn}{le}35 A with Si interlayers.

Authors:
; ; ; ; ; ; ; ;  [1]
  1. Department of Physics and Astronomy, Michigan State University, East Lansing, MI (USA) Center for Fundamental Materials Research, Michigan State University, East Lansing, MI (USA)
Publication Date:
OSTI Identifier:
6486037
Resource Type:
Journal Article
Journal Name:
Physical Review, B: Condensed Matter; (USA)
Additional Journal Information:
Journal Volume: 42:4; Journal ID: ISSN 0163-1829
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; COPPER ALLOYS; SPIN GLASS STATE; MANGANESE ALLOYS; PHYSICAL PROPERTIES; ELECTRIC CONDUCTIVITY; ELECTRON MICROSCOPY; MAGNETIC SUSCEPTIBILITY; SMALL ANGLE SCATTERING; X-RAY DIFFRACTION; X-RAY SPECTROSCOPY; ALLOYS; COHERENT SCATTERING; DIFFRACTION; ELECTRICAL PROPERTIES; MAGNETIC PROPERTIES; MICROSCOPY; SCATTERING; SPECTROSCOPY; 360104* - Metals & Alloys- Physical Properties

Citation Formats

Kenning, G G, Bass, J, Pratt, Jr, W P, Leslie-Pelecky, D, Hoines, L, Leach, W, Wilson, M L, Stubi, R, and Cowen, J A. Finite-size effects in Cu-Mn spin glasses. United States: N. p., 1990. Web. doi:10.1103/PhysRevB.42.2393.
Kenning, G G, Bass, J, Pratt, Jr, W P, Leslie-Pelecky, D, Hoines, L, Leach, W, Wilson, M L, Stubi, R, & Cowen, J A. Finite-size effects in Cu-Mn spin glasses. United States. https://doi.org/10.1103/PhysRevB.42.2393
Kenning, G G, Bass, J, Pratt, Jr, W P, Leslie-Pelecky, D, Hoines, L, Leach, W, Wilson, M L, Stubi, R, and Cowen, J A. Wed . "Finite-size effects in Cu-Mn spin glasses". United States. https://doi.org/10.1103/PhysRevB.42.2393.
@article{osti_6486037,
title = {Finite-size effects in Cu-Mn spin glasses},
author = {Kenning, G G and Bass, J and Pratt, Jr, W P and Leslie-Pelecky, D and Hoines, L and Leach, W and Wilson, M L and Stubi, R and Cowen, J A},
abstractNote = {Finite-size effects in the spin glass (SG) Cu-Mn have been studied using magnetron-sputtered multilayer systems (MS's) of the form Cu{sub 1{minus}{ital x}}Mn{sub {ital x}}/Cu and Cu{sub 1{minus}{ital x}}Mn{sub {ital x}}/Si with {ital x}=0.04, 0.07, 0.14 (and some data for 0.21). The SG layers have widths {ital W}{sub Cu-Mn} ranging from 10 000 to 20 A and are separated and magnetically decoupled from each other by interlayers of either 300 A of Cu or 70 A of Si. The MS's continue to show SG peaks in the zero-field-cooled (ZFC) dc'' magnetic susceptibility {chi} down to {ital W}{sub Cu-Mn}=20 A. The quasistatic freezing temperature {ital T}{sub {ital f}} (defined as the location of the peak in {chi}) begins to decrease from its bulk value, {ital T}{sub {ital f}}{sup {ital b}}, at {ital W}{sub Cu-Mn}{approx}1000 A and approaches zero for SG thicknesses 0{le}{ital W}{sub Cu-Mn}{le}10 A with Cu interlayers or 30 A{le}{ital W}{sub Cu-Mn}{le}35 A with Si interlayers.},
doi = {10.1103/PhysRevB.42.2393},
url = {https://www.osti.gov/biblio/6486037}, journal = {Physical Review, B: Condensed Matter; (USA)},
issn = {0163-1829},
number = ,
volume = 42:4,
place = {United States},
year = {1990},
month = {8}
}