The synthesis and characterization of 1111-type diluted magnetic semiconductors (La sub( 1-x)Sr sub( x))(Zn sub( 1-x)TM sub( x))AsO (TM = Mn, Fe, Co)
The doping effect of Sr and transition metals Mn, Fe, Co into the direct-gap semiconductor LaZnAsO has been investigated. The results of this study indicate that, the single phase ZrCuSiAs-type tetragonal crystal structure is preserved in (...)(...)AsO (TM = Mn, Fe, Co) with the doping level up to x...
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| Veröffentlicht in: | Europhysics letters 2013-09, Vol.103 (6), p.1-1 |
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| creator | Lu, Jicai Man, Huiyuan Ding, Cui Wang, Quan Yu, Biqiong Guo, Shengli Wang, Hangdong Chen, Bin Han, Wei Jin, Changqing Uemura, Yasutomo J Ning, Fanlong |
| description | The doping effect of Sr and transition metals Mn, Fe, Co into the direct-gap semiconductor LaZnAsO has been investigated. The results of this study indicate that, the single phase ZrCuSiAs-type tetragonal crystal structure is preserved in (...)(...)AsO (TM = Mn, Fe, Co) with the doping level up to x = 0.1. While the system remains semiconducting, doping with Sr and Mn results in ferromagnetic order with TC similar to 30 K, and doping with Sr and Fe results in a spin-glass-like state below similar to 6K with a saturation moment of similar to 0.02 mu B/Fe, an order of magnitude smaller than the similar to 0.4 mu B/Mn of Sr- and Mn-doped samples. The same type of magnetic state is observed neither for (Zn,Fe) substitution without carrier doping, nor for Sr- and Co-doped specimens. (ProQuest: ... denotes formulae/symbols omitted.) |
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The results of this study indicate that, the single phase ZrCuSiAs-type tetragonal crystal structure is preserved in (...)(...)AsO (TM = Mn, Fe, Co) with the doping level up to x = 0.1. While the system remains semiconducting, doping with Sr and Mn results in ferromagnetic order with TC similar to 30 K, and doping with Sr and Fe results in a spin-glass-like state below similar to 6K with a saturation moment of similar to 0.02 mu B/Fe, an order of magnitude smaller than the similar to 0.4 mu B/Mn of Sr- and Mn-doped samples. The same type of magnetic state is observed neither for (Zn,Fe) substitution without carrier doping, nor for Sr- and Co-doped specimens. (ProQuest: ... denotes formulae/symbols omitted.)</description><identifier>ISSN: 0295-5075</identifier><identifier>EISSN: 1286-4854</identifier><language>eng</language><subject>Crystal structure ; Doping ; Iron ; Manganese ; Saturation ; Semiconductors ; Strontium ; Transition metals</subject><ispartof>Europhysics letters, 2013-09, Vol.103 (6), p.1-1</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781</link.rule.ids></links><search><creatorcontrib>Lu, Jicai</creatorcontrib><creatorcontrib>Man, Huiyuan</creatorcontrib><creatorcontrib>Ding, Cui</creatorcontrib><creatorcontrib>Wang, Quan</creatorcontrib><creatorcontrib>Yu, Biqiong</creatorcontrib><creatorcontrib>Guo, Shengli</creatorcontrib><creatorcontrib>Wang, Hangdong</creatorcontrib><creatorcontrib>Chen, Bin</creatorcontrib><creatorcontrib>Han, Wei</creatorcontrib><creatorcontrib>Jin, Changqing</creatorcontrib><creatorcontrib>Uemura, Yasutomo J</creatorcontrib><creatorcontrib>Ning, Fanlong</creatorcontrib><title>The synthesis and characterization of 1111-type diluted magnetic semiconductors (La sub( 1-x)Sr sub( x))(Zn sub( 1-x)TM sub( x))AsO (TM = Mn, Fe, Co)</title><title>Europhysics letters</title><description>The doping effect of Sr and transition metals Mn, Fe, Co into the direct-gap semiconductor LaZnAsO has been investigated. The results of this study indicate that, the single phase ZrCuSiAs-type tetragonal crystal structure is preserved in (...)(...)AsO (TM = Mn, Fe, Co) with the doping level up to x = 0.1. While the system remains semiconducting, doping with Sr and Mn results in ferromagnetic order with TC similar to 30 K, and doping with Sr and Fe results in a spin-glass-like state below similar to 6K with a saturation moment of similar to 0.02 mu B/Fe, an order of magnitude smaller than the similar to 0.4 mu B/Mn of Sr- and Mn-doped samples. The same type of magnetic state is observed neither for (Zn,Fe) substitution without carrier doping, nor for Sr- and Co-doped specimens. 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The results of this study indicate that, the single phase ZrCuSiAs-type tetragonal crystal structure is preserved in (...)(...)AsO (TM = Mn, Fe, Co) with the doping level up to x = 0.1. While the system remains semiconducting, doping with Sr and Mn results in ferromagnetic order with TC similar to 30 K, and doping with Sr and Fe results in a spin-glass-like state below similar to 6K with a saturation moment of similar to 0.02 mu B/Fe, an order of magnitude smaller than the similar to 0.4 mu B/Mn of Sr- and Mn-doped samples. The same type of magnetic state is observed neither for (Zn,Fe) substitution without carrier doping, nor for Sr- and Co-doped specimens. (ProQuest: ... denotes formulae/symbols omitted.)</abstract></addata></record> |
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| source | IOP Publishing Journals |
| subjects | Crystal structure Doping Iron Manganese Saturation Semiconductors Strontium Transition metals |
| title | The synthesis and characterization of 1111-type diluted magnetic semiconductors (La sub( 1-x)Sr sub( x))(Zn sub( 1-x)TM sub( x))AsO (TM = Mn, Fe, Co) |
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