Stoner Ferromagnetism in a Momentum-Confined Interacting 2D Electron Gas

被引：1

作者：

Antebi, Ohad ^{[1
]}

Stern, Ady ^{[1
]}

Berg, Erez ^{[1
]}

机构：

[1] Weizmann Inst Sci, Dept Condensed Matter Phys, IL-76100 Rehovot, Israel

来源：

PHYSICAL REVIEW LETTERS | 2024年 / 132卷 / 08期

基金：

欧洲研究理事会;

关键词：

GROUND-STATE; SUPERCONDUCTIVITY; BAND;

D O I：

10.1103/PhysRevLett.132.086501

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In this work we investigate the ground state of a momentum -confined interacting 2D electron gas, a momentum -space analog of an infinite quantum well. The study is performed by combining analytical results with a numerical exact diagonalization procedure. We find a ferromagnetic ground state near a particular electron density and for a range of effective electron (or hole) masses. We argue that this observation may be relevant to the generalized Stoner ferromagnetism recently observed in multilayer graphene systems. The collective magnon excitations exhibit a linear dispersion, which originates from a diverging spin stiffness.

引用

页数：6

共 50 条

[41] DISSIPATIVE PROCESSES IN LOW DENSITY STRONGLY INTERACTING 2D ELECTRON SYSTEMS
Neilson, David
INTERNATIONAL JOURNAL OF MODERN PHYSICS B, 2010, 24 (25-26): : 4946 - 4960
[42] Correlation energy and spin polarization in the 2D electron gas
Attaccalite, C
Moroni, S
Gori-Giorgi, P
Bachelet, GB
PHYSICAL REVIEW LETTERS, 2002, 88 (25) : 2566011 - 2566014
[43] WIGNER CRYSTALLIZATION IN 2D ELECTRON-GAS IN SEMICONDUCTORS
PUDALOV, VM
USPEKHI FIZICHESKIKH NAUK, 1991, 161 (06): : 201 - 205
[44] Ultrafast dynamics of optic phonons in a 2D electron gas
Baumberg, JJ
Williams, DA
PHYSICA B-CONDENSED MATTER, 1996, 219-20 : 28 - 30
[45] A Curved Noninteracting 2D Electron Gas with Anisotropic Mass
Souza, Pedro H.
Silva, Edilberto O.
Rojas, Moises
Filgueiras, Cleverson
ANNALEN DER PHYSIK, 2018, 530 (07)
[46] Antilocalization in a 2D electron gas in a random magnetic field
Taras-Semchuk, D
Efetov, KB
PHYSICAL REVIEW LETTERS, 2000, 85 (05) : 1060 - 1063
[47] On interaction of charged particles flow with 2D electron gas
Yakovenko, V.M.
Yakovenko, I.V.
Telecommunications and Radio Engineering (English translation of Elektrosvyaz and Radiotekhnika), 2002, 57 (8-9): : 76 - 83
[48] Quantum effects in the conductivity of a quasi 2D electron gas
Levanda, M
Fleurov, V
RECENT TRENDS IN THEORY OF PHYSICAL PHENOMENA IN HIGH MAGNETIC FIELDS, 2003, 106 : 105 - 115
[49] Formation and Tuning of 2D Electron Gas in Perovskite Heterostructures
Maznichenko, Igor, V
Ostanin, Sergey
Ernst, Arthur
Henk, Juergen
Mertig, Ingrid
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2020, 257 (07):
[50] ELECTRON DELOCALIZATION IN THE 2D ELECTRON-GAS AT A SILICON (100) SURFACE
DOLGOPOLOV, VT
SHASHKIN, AA
ZHITENEV, NB
DOROZHKIN, SI
JETP LETTERS, 1986, 43 (08) : 466 - 470

← 1 2 3 4 5 →