BROWSE

Related Scientist

Researcher

양자나노과학 연구단
양자나노과학 연구단
more info

Probing the magnetic properties of ultrathin Pt/Mn bilayers

Cited 0 time in webofscience Cited 0 time in scopus
32 Viewed 10 Downloaded
Title
Probing the magnetic properties of ultrathin Pt/Mn bilayers
Author(s)
Thi Kim HangPham; Mario Ribeiro; Tae Hee Kim
Publication Date
2018-12
Journal
THIN SOLID FILMS, v.671, no., pp.1 - 5
Publisher
ELSEVIER SCIENCE SA
Abstract
We report on the interplay between surface morphology and the magnetic properties of Pt/Mn ultra-thin bilayers by measuring the temperature dependence of the resistivity of Hall bars cooled under application of an external magnetic field. The resistivity (ρ) versus temperature (T) curves measured under a magnetic field applied along the x-, y- and z- directions exhibit a clear difference between the zero-field-cooled (ZFC) and field-cooled (FC) traces. The disparity between the ZFC and FC traces allowed us to determine the direction of the magnetic easy-axis. The ρ vs. T characteristic of the Pt/Mn bilayers revealed the existence of antiferromagnetic (AF) order below 79 K, in agreement with the Néel temperature observed in temperature dependent susceptibility curves. We also investigated the morphological evolution of the Mn films as a function of Mn thickness by atomic force microscopy (AFM). We observed the formation of a Mn layered structure on a 2nm-thick Al2O3 buffer layer for films thicker than 2.5 nm. Our results suggest that bilayer structures consisting of non-magnetic noble metals on ultra-thin antiferromagnetic metals can be used as a probe to explore the complex magnetic properties of the AF layer.© 2018 The Authors. Published by Elsevier B.V.
URI
https://pr.ibs.re.kr/handle/8788114/5358
ISSN
0040-6090
Appears in Collections:
Center for Quantum Nanoscience(양자나노과학 연구단) > Journal Papers (저널 논문)
Files in This Item:
TSF2019_Pham et al.pdfDownload

qrcode

  • facebook

    twitter

  • Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
해당 아이템을 이메일로 공유하기 원하시면 인증을 거치시기 바랍니다.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse