Published July 1999 | Version v1
Journal article Metadata-only

Moessbauer and EXAFS investigations of the local atomic structure of Fe-Sn nanocrystalline alloys

Creators

  • 1. Fiziko-Tekhnicheskij Inst. Ural'skogo Otdeleniya Rossijskoj Akademii Nauk, Izhevsk (Russian Federation)
  • 2. Inst. Fiziki Metallov Ural'skogo Otdeleniya Rossijskoj Akademii Nauk, Ekaterinburg (Russian Federation)
  • 3. Nauchno-Issledovatel'skij Inst. Yadernoj Fiziki im. D.V. Skobel'tsyna Moskovskogo Gosudarstvennogo Univ. im. M.V. Lomonosova, Moscow (Russian Federation)

Description

The results of studies on disordered mechano-activated Fe1-xSnx alloys with 0 < x < 50 at. % Sn are presented. The concentration dependence of the H-barFe(x) average effective magnetic field indicates a number of peculiarities at 12-15 and 25 at. % Sn. The model of local atomic structure based on the assumption on changes of the effective coordination number in the nearest coordination contact of the Fe atom making it possible to explain the H-barFe(x) behaviour was proposed. Treatment of the EXAFS-spectra of the Fe K-edge was carried out with the purpose of obtaining structural information to confirm this model

Abstract (Russian)

Представлены результаты исследования разупорядоченных механоактивированных сплавов Fe1-xSnx с 0 < x < 50 ат. % Sn. Концентрационная зависимость среднего эффективного магнитного поля H-barFe(x) показывает ряд особенностей при 12-15 и 25 ат. % Sn. Предложена модель локальной атомной структуры, основанная на предположении об изменении эффективного координационного числа в ближайшем координационном контакте атома Fe, позволившая объяснить поведение H-barFe(x). Для подтверждения этой модели проводилась обработка EXAFS-спектров К-края Fe с целью извлечения структурной информации

Additional details

Additional titles

Original title (Russian)
Мессбауэровские и EXAFS-исследования локальной атомной структуры нанокристаллических сплавов Фе-Сн

Publishing Information

Journal Title
Izvestiya Akademii Nauk. Rossijskaya Akademiya Nauk. Seriya Fizicheskaya
Journal Volume
63
Journal Issue
7
Journal Page Range
p. 1430-1434
ISSN
1026-3489
CODEN
IRAFEO

Conference

Title
All-Russian conference on applications of the nuclear-physical methods in magnetism and materials science
Original Conference Title
Vserossijskaya konferentsiya po primeneniyu yaderno-fizicheskikh metodov v materialovedenii
Dates
28 Sep - 2 Oct 1998
Place
Izhevsk (Russian Federation)

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
31037124
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CONCENTRATION RATIO; COORDINATION NUMBER; ELECTRONIC STRUCTURE; IRON 57; IRON ALLOYS; ISOMER SHIFT; MAGNETIC FIELDS; MATHEMATICAL MODELS; MOESSBAUER EFFECT; SPECTRA UNFOLDING; TIN ALLOYS; X-RAY SPECTROSCOPY
Descriptors DEC
ALLOYS; DATA PROCESSING; EVEN-ODD NUCLEI; INTERMEDIATE MASS NUCLEI; IRON ISOTOPES; ISOTOPES; NUCLEI; PROCESSING; SPECTROSCOPY; STABLE ISOTOPES; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
15 refs., 3 figs., 1 tab.