Evidence for a Mott-Hubbard transition in a two-dimensional 3He fluid monolayer -: art. no. 115301

被引：102

作者：

Casey, A ^{[1
]}

Patel, H ^{[1
]}

Nyéki, J ^{[1
]}

Cowan, BP ^{[1
]}

Saunders, J ^{[1
]}

机构：

[1] Univ London Royal Holloway & Bedford New Coll, Dept Phys, Millikelvin Lab, Egham TW20 0EX, Surrey, England

来源：

PHYSICAL REVIEW LETTERS | 2003年 / 90卷 / 11期

关键词：

D O I：

10.1103/PhysRevLett.90.115301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The heat capacity and magnetization of a fluid He-3 monolayer adsorbed on graphite plated with a bilayer of HD have been measured in the temperature range 1-60 mK. Approaching the density at which the monolayer solidifies into a root7xroot7 commensurate solid, we observe an apparent divergence of the effective mass and magnetization corresponding to a T = 0 Mott-Hubbard transition between a 2D Fermi liquid and a magnetically disordered solid. The observations are consistent with the Brinkman-Rice-Anderson-Vollhardt scenario for a metal-insulator transition. We observe a leading order T-2 correction to the linear term in heat capacity.

引用

页码：4 / 115301

页数：4

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