Low Temperature Physics: 40, 323 (2014); https://doi.org/10.1063/1.4871743
Fizika Nizkikh Temperatur: Volume 40, Number 4 (April 2014), p. 420-425    ( to contents , go back )

Electron topological Lifshitz transition and complex magnetic structures in heavy rare-earth metals

A.Vl. Andrianov

M.V. Lomonosov Moscow State University, Moscow 119991, Russia
E-mail: andr@mig.phys.msu.ru
pos Анотація:

Received November 7, 2013

Abstract

The determining role of geometry of Fermi surface in the formation of long-period magnetic structures in heavy rare-earth metals is considered. It is shown that each of these metals is on the verge of electron topological Lifshitz transition. It is experimentally supported that the electron topological transition due to elastic deformation results in changes of magnetic ordering types. A universal phase diagram “magnetic ordering type — parameters a and c of hcp lattice” is determined for the above metals, it being in good agreement with the first-principle calculated results.

PACS: 71.18.+y Fermi surface: calculations and measurements; effective mass, g-factor;
PACS: 71.20.Eh Rare-earth metals and alloys;
PACS: 75.30.Kz Magnetic phase boundaries (in-cluding classical and quantum magnetic transi-tions, metamagnetism, etc.).

Key words: Fermi surface, magnetic phase transitions, electronic structure of metals, rare-earth metals, compound magnetic structures.

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