Effect of anisotropy on 1/f noise measurements of CuMn spin glasses

David C. Harrison, E. Dan Dahlberg, Raymond L. Orbach

Research output: Contribution to journalArticlepeer-review

Abstract

The effect of systematic Au doping on the onset of enhanced 1/f noise in the electrical resistance fluctuations of CuMn spin-glass alloys is reported. The purpose of the Au doping is to add a unidirectional anisotropy to that already present from the Mn in Cu. We find that the ratio of the noise onset temperature to the spin-glass temperature is not affected by the increase in anisotropy.

Original languageEnglish (US)
Article number064411
JournalPhysical Review B
Volume100
Issue number6
DOIs
StatePublished - Aug 19 2019

Bibliographical note

Funding Information:
This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0013599. Parts of this work were carried out in the Characterization Facility, University of Minnesota, which receives partial support from NSF through the MRSEC program. Portions of this work were conducted in the Minnesota Nano Center, which is supported by the National Science Foundation through the National Nano Coordinated Infrastructure Network, Award No. NNCI-1542202. Part of this work was performed at the Institute for Rock Magnetism (IRM) at the University of Minnesota. The IRM is a U.S. National Multi-user Facility supported through the Instrumentation and Facilities program of the National Science Foundation, Earth Sciences Division, under Award No. 1642268, and by funding from the University of Minnesota

Funding Information:
This work was supported by the U.S. Department of Energy, Office of Science, Basic Energy Sciences, under Award No. DE-SC0013599. Parts of this work were carried out in the Characterization Facility, University of Minnesota, which receives partial support from NSF through the MRSEC program. Portions of this work were conducted in the Minnesota Nano Center, which is supported by the National Science Foundation through the National Nano Coordinated Infrastructure Network, Award No. NNCI-1542202. Part of this work was performed at the Institute for Rock Magnetism (IRM) at the University of Minnesota. The IRM is a U.S. National Multi-user Facility supported through the Instrumentation and Facilities program of the National Science Foundation, Earth Sciences Division, under Award No. 1642268, and by funding from the University of Minnesota.

Publisher Copyright:
© 2019 American Physical Society.

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