Research output: Contribution to journal › Conference article › peer-review
Magnetic phase transition in a disordered FeNi alloy : Percolative scenario. / Grigoriev, S. V.; Klimko, S. A.; Kraan, W. H.; Rekveldt, M. Th; Okorokov, A. I.; Runov, V. V.
In: Physica B: Condensed Matter, Vol. 276-278, 03.2000, p. 556-557.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Magnetic phase transition in a disordered FeNi alloy
T2 - 2nd European Conference on Neutron Scattering (ECNS '99)
AU - Grigoriev, S. V.
AU - Klimko, S. A.
AU - Kraan, W. H.
AU - Rekveldt, M. Th
AU - Okorokov, A. I.
AU - Runov, V. V.
N1 - Funding Information: The authors would like to thank NWO (Dutch Organisation of Advancement of Science) for financial support and for their cooperation. The work is supported by RFFR (projects L-EN-96-15-96775 and 98-02-17632) and the Russian State Program “Neutron Research of Solids”.
PY - 2000/3
Y1 - 2000/3
N2 - The second-order magnetic phase transition in the invar Fe70Ni30 alloy was investigated. An intrinsic disorder in invar alloys leads to local variations of the Curie temperature TC around its average value 〈TC〉. As a result, large-scale inhomogeneities arise along with the usual critical fluctuations above 〈TC〉. Three-dimensional ND analysis allows one to obtain TC, its spread δTC and the characteristic size R0 of the areas where TC-variations occur. According to our experimental findings the `percolative' scenario of the phase transition occurs for this alloy.
AB - The second-order magnetic phase transition in the invar Fe70Ni30 alloy was investigated. An intrinsic disorder in invar alloys leads to local variations of the Curie temperature TC around its average value 〈TC〉. As a result, large-scale inhomogeneities arise along with the usual critical fluctuations above 〈TC〉. Three-dimensional ND analysis allows one to obtain TC, its spread δTC and the characteristic size R0 of the areas where TC-variations occur. According to our experimental findings the `percolative' scenario of the phase transition occurs for this alloy.
UR - http://www.scopus.com/inward/record.url?scp=0033873416&partnerID=8YFLogxK
U2 - 10.1016/S0921-4526(99)01365-4
DO - 10.1016/S0921-4526(99)01365-4
M3 - Conference article
AN - SCOPUS:0033873416
VL - 276-278
SP - 556
EP - 557
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
SN - 0921-4526
Y2 - 1 September 1999 through 4 September 1999
ER -
ID: 86439080