Fermi Surface Measurements on the Low Carrier Density Ferromagnet Ca1-xLaxB6 and SrB6

Preprint

10 April 2001

preprint
Published by arXiv in arXiv

https://doi.org/10.48550/arXiv.cond-mat/0104184

Abstract

Recently it has been discovered that weak ferromagnetism of a dilute 3D electron gas develops on the energy scale of the Fermi temperature in some of the hexaborides; that is, the Curie temperature approximately equals the Fermi temperature. We report the results of de Haas-van Alphen experiments on two concentrations of La-doped CaB6 as well as Ca-deficient Ca1-dB6 and Sr-deficient Sr1-dB6. The results show that a Fermi surface exists in each case and that there are significant electron-electron interactions in the low density electron gas.

Keywords

FERMI TEMPERATURE
FERROMAGNETISM
FERMI SURFACE
ELECTRON GAS
LOW CARRIER
TEMPERATURE
CA1
DB6

All Related Versions

Version 1, 2001-04-10, ArXiv
Published version: Physical Review B, 64 (23), 233105.

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