Pressure dependence of the Curie temperature in Fe-Pd Invar alloys

F. Ono, H. Kanamitsu, N. Q. Sun, Y. Matsushima, M. Matsushita

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Fe-Pd alloy with pd-concentration around 30 at.% shows very low or even negative thermal expansion coefficient below the Curie temperature. This anomaly is caused by the large positive magneto-volume effect. By using a cubic anvil press, measurements of temperature dependence of ac-susceptibility in Fe-Pd invar alloys were made under high pressures up to 7.8 GPa. The Curie temperature decreased 200 k under the maximum pressure. The low-temperature high-pressure phase found in Fe-Ni and Fe-Pt invar alloys was not observed in Fe-Pt invar alloy. This fact may be related to the relatively high Curie temperature in Fe-Pd alloy than in other two invar alloys.

Original languageEnglish
Title of host publicationJoint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology
EditorsEckhard Dinjus
PublisherKarlsruhe Forschungszentrum Karlsruhe gmbH
ISBN (Electronic)9783923704491
Publication statusPublished - 2005
EventInternational Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology - Karlsruhe, Germany
Duration: Jun 27 2005Jul 1 2005

Publication series

NameJoint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology

Other

OtherInternational Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology
CountryGermany
CityKarlsruhe
Period6/27/057/1/05

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Nuclear and High Energy Physics

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  • Cite this

    Ono, F., Kanamitsu, H., Sun, N. Q., Matsushima, Y., & Matsushita, M. (2005). Pressure dependence of the Curie temperature in Fe-Pd Invar alloys. In E. Dinjus (Ed.), Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology (Joint 20th AIRAPT and 43rd EHPRG International Conference on High Pressure Science and Technology). Karlsruhe Forschungszentrum Karlsruhe gmbH.