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Registration Number

0209U010534, 0109U007183 , R & D reports

Title

The change of the scaling laws in condensed matter under influence of disorder and frustrations (I part - Determination of the character of transition into low-temperature state in three-dimensional frustrated magnets)

Head

Dudka Maksym,

Registration Date

15-12-2009

Organization

Institute for Condensed Matter Physics of the National Academy of Sciences of Ukraine

Description

The renormalization group analysis of the critical behavior of three-dimensional frustarated system within theory phi4 was performed. The resummation procedure was applied to known renormalization group functions and the stability exponents for renormalization group transformation fixed points were obtained in dependence on resummation parameters. For systems with two- and three-component order parameter the strong dependence of stability exponent for stable fixed point on the resummation parameters was observed. On this ground the conclusion was done, that mentioned fixed point does not describe ordering in the frustrated magnets.

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