{
  "date" : "2010-03-15",
  "identifier_doecontract" : "",
  "subject" : "75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CHALCOGENIDES; CRYSTAL STRUCTURE; FERRIMAGNETIC MATERIALS; IRON COMPLEXES; IRON IONS; MAGNETIZATION; MATERIALS TESTING; MOESSBAUER EFFECT; POLYCRYSTALS; TEMPERATURE DEPENDENCE; X-RAY DIFFRACTION",
  "description" : "Polycrystalline Al-doped FeCr{sub 1.7}Al{sub 0.3}S{sub 4} has been studied with X-ray diffraction, magnetization, and Moessbauer spectroscopy measurements. The crystal structure was found to be a cubic spinel with a space group of Fd-3m, and the lattice constant was 10.004 A. The magnetic susceptibility followed the Curie-Weiss law with a positive {theta}{sub cw} = 114 K, showing a ferrimagnetic behavior. The value of the magnetization at 5 K was found to be 1.12 {mu}{sub B}. Moessbauer spectra of FeCr{sub 1.7}Al{sub 0.3}S{sub 4} were obtained at various temperatures ranging from 4.2 to 300 K. Both the magnetic hyperfine field (H{sub hf}) and the polar angle ({theta}) reached their maximum values at 60 K and had similar temperature dependences. However, the azimuthal angle ({phi}) remained constant at temperatures below 60 K and started increasing with temperature at temperatures above 60 K. From the Moessbauer spectra of FeCr{sub 1.7}Al{sub 0.3}S{sub 4} at 4.2 K, we obtained the following Moessbauer parameters: H{sub hf} = 128 kOe, {Delta}E{sub Q} = 2.42 mm/s, {theta} = 20.0 .deg. , {phi} = 0.0 .deg. , {eta} = 0.8, and R = 2.8. The isomer shift of FeCr{sub 1.7}Al{sub 0.3}S{sub 4} at 4.2 K was 0.83 mm/s relative to the Fe metal, which is consistent with the Fe{sup 2+} valence state.",
  "language" : "English",
  "identifier_report" : "",
  "publisher_sponsor" : "",
  "publisher_country" : "Korea, Republic of",
  "source" : "KRN",
  "purl" : "",
  "title" : "Moessbauer studies on ferrimagnetic FeCr{sub 1.7}Al{sub 0.3}S{sub 4}",
  "type" : "Journal Article",
  "subject_related" : "",
  "relation" : "Journal Name: Journal of the Korean Physical Society; Journal Volume: 56; Journal Issue: 3; Other Information: 18 refs, 5 figs, 2 tabs",
  "entry_date" : "2013-05-13",
  "subject_list" : [ "75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY", "CHALCOGENIDES", "CRYSTAL STRUCTURE", "FERRIMAGNETIC MATERIALS", "IRON COMPLEXES", "IRON IONS", "MAGNETIZATION", "MATERIALS TESTING", "MOESSBAUER EFFECT", "POLYCRYSTALS", "TEMPERATURE DEPENDENCE", "X-RAY DIFFRACTION" ],
  "publisher_availability" : "",
  "rights" : "",
  "announced_date" : "2013-04-01",
  "type_qualifier" : "",
  "has_fulltext" : false,
  "coverage" : "",
  "identifier" : "",
  "journal_volume" : "56",
  "creator" : "Kim, Chin Mo; Kim, Chul Sung [Kookmin University, Seoul (Korea, Republic of)]",
  "site_ownership_code" : "KRN",
  "osti_id" : "22077209",
  "journal_issue" : "3",
  "resource_type" : "JOUR",
  "format" : "Medium: X; Size: page(s) 823-826",
  "journal_name" : [ ],
  "contributing_organizations" : "",
  "citation_location" : "https://www.osti.gov/etdeweb/biblio/22077209",
  "publication_year" : 2010,
  "subject_list_commas" : "75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY, CHALCOGENIDES, CRYSTAL STRUCTURE, FERRIMAGNETIC MATERIALS, IRON COMPLEXES, IRON IONS, MAGNETIZATION, MATERIALS TESTING, MOESSBAUER EFFECT, POLYCRYSTALS, TEMPERATURE DEPENDENCE, X-RAY DIFFRACTION",
  "publisher" : "",
  "identifier_other" : "Journal ID: ISSN 0374-4884; TRN: KR1301072036384",
  "publisher_research" : "",
  "creators_list" : [ "Kim, Chin Mo", "Kim, Chul Sung [Kookmin University, Seoul (Korea, Republic of)]" ],
  "doi" : "https://doi.org/"
}