La(Zn1−2xMnxCux)AsO: A 1111-type diluted magnetic semiconductor with manganese and copper codoping at Zn sites

Shengli Guo; Yao Zhao; Xin Gong; Huiyuan Man; Cui Ding; Guoxiang Zhi; Licheng Fu; Yilun Gu; Hangdong Wang; Bin Chen; Yang Guo; F. L. Ning

doi:10.1209/0295-5075/114/57008

All issues

Volume 114 / No 5 (June 2016)

EPL, 114 5 (2016) 57008

Abstract

Issue		EPL Volume 114, Number 5, June 2016


Article Number		57008
Number of page(s)		5
Section		Condensed Matter: Electronic Structure, Electrical, Magnetic and Optical Properties
DOI		https://doi.org/10.1209/0295-5075/114/57008
Published online		08 July 2016

EPL, 114 (2016) 57008

La(Zn_1−2xMn_xCu_x)AsO: A 1111-type diluted magnetic semiconductor with manganese and copper codoping at Zn sites

Shengli Guo¹^,2, Yao Zhao¹^,2, Xin Gong¹^,2, Huiyuan Man¹^,2, Cui Ding¹^,2, Guoxiang Zhi¹^,2, Licheng Fu¹^,2, Yilun Gu¹^,2, Hangdong Wang³, Bin Chen³, Yang Guo³ and F. L. Ning¹^,2^(a)

¹ Department of Physics, Zhejiang University - Hangzhou 310027, China
² Collaborative Innovation Center of Advanced Microstructures - Nanjing 210093, China
³ Department of Physics, Hangzhou Normal University - Hangzhou 310016, China

^(a) ningfl@zju.edu.cn

Received: 6 March 2016
Accepted: 19 June 2016

Abstract

We report the successful synthesis and characterization of a new layered diluted magnetic semiconductor (DMS) La(Zn,Mn,Cu)AsO which is isostructural to Fe-based “1111” superconductor. Mn and Cu are codoped into the same Zn sites to provide local moments and carriers, respectively. A ferromagnetic transition with the highest T_C of ∼ 8 K has been observed for $x = 0.150$ from magnetization measurements. Iso-thermal magnetization plots show that the compound has a coercive field, ∼ 500 Oe, much smaller than that in (La,Ba)(Zn,Mn)AsO. The resistivity of all samples display semiconducting behavior with the doping level up to 15%.

PACS: 75.50.Pp – Magnetic semiconductors / 75.50.Lk – Spin glasses and other random magnets / 75.30.Cr – Saturation moments and magnetic susceptibilities

© EPLA, 2016

Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.

Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.

Initial download of the metrics may take a while.