The control of magnetism near metal-to-insulator transitions of VO2 nano-belts

被引：7

作者：

Nkosi, S. S. ^{[1
]}

Lafane, S. ^{[2
]}

Masina, B. N. ^{[3
]}

Ndwandwe, O. M. ^{[1
]}

机构：

[1] Univ Zululand, Dept Phys & Engn, Private Bag X1001, ZA-3886 Kwa Dlangezwa, South Africa

[2] Ctr Dev Technol Avancees, Div Milieux Ionises & Laser, Cite 20 Aout 1956,BP 17, Algiers, Algeria

[3] CSIR, Natl Laser Ctr, 629 Meiring Naude Rd, Pretoria, South Africa

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2016年 / 689卷

基金：

新加坡国家研究基金会;

关键词：

VO2; MIT; Nanostructures; Magnetism; PHASE-TRANSITIONS; VANADIUM; OXIDES;

D O I：

10.1016/j.jallcom.2016.07.273

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The magnetic properties of paramagnetic/weakly ferromagnetic films are strongly affected by the proximity to materials that undergo a metal to insulator phase transition. Here, we show that under the deposition conditions associated with structural changes near the metal-insulator phase transition of VO2 produces magnetoelastic anisotropy. We observe intrinsic paramagnetic centres (PM-C) both at the near film surface and bulk/deep PM-C that are affected by the metal-insulator phase transition in VO2. We study the evolution of vibrational modes of VO2 thin films in the vicinity of the phase transition by using temperature controlled-Raman microscopy. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：313 / 317

页数：5

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