Wang, Z, Segawa, K, Sasaki, S et al. (2 more authors) (2015) Ferromagnetism in Cr-doped topological insulator TlSbTe2. APL Materials, 3 (8). ARTN 083302. ISSN 2166-532X
Abstract
We have synthesized a new ferromagnetic topological insulator by doping Cr to the ternary topological-insulator material TlSbTe2. Single crystals of Tl1−x Cr x SbTe2 were grown by a melting method and it was found that Cr can be incorporated into the TlSbTe2 matrix only within the solubility limit of about 1%. The Curie temperature θC was found to increase with the Cr content but remained relatively low, with the maximum value of about 4 K. The easy axis was identified to be the c-axis and the saturation moment was 2.8 μB (Bohr magneton) at 1.8 K. The in-plane resistivity of all the samples studied showed metallic behavior with p-type carriers. Shubnikov-de Hass oscillations were observed in samples with the Cr-doping level of up to 0.76%. We also tried to induce ferromagnetism in TlBiTe2 by doping Cr, but no ferromagnetism was observed in Cr-doped TlBiTe2 crystals within the solubility limit of Cr which turned out to be also about 1%.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | C 2015 Author(s). Creative Commons Attribution 3.0 Unported License. |
Dates: |
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Institution: | The University of Leeds |
Academic Units: | The University of Leeds > Faculty of Engineering & Physical Sciences (Leeds) > School of Physics and Astronomy (Leeds) > Condensed Matter (Leeds) |
Depositing User: | Symplectic Publications |
Date Deposited: | 30 Mar 2016 10:37 |
Last Modified: | 30 Mar 2016 10:37 |
Published Version: | http://dx.doi.org/10.1063/1.4922002 |
Status: | Published |
Publisher: | American Institute of Physics (AIP): Open Access Journals |
Identification Number: | 10.1063/1.4922002 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:96667 |