{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1360565166120781056.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1016/j.ssc.2012.02.026"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S003810981200138X?httpAccept=text/xml"}},{"identifier":{"@type":"URI","@value":"https://api.elsevier.com/content/article/PII:S003810981200138X?httpAccept=text/plain"}}],"resourceType":"学術雑誌論文(journal article)","dc:title":[{"@value":"Observation of large Zeeman splitting in GaGdN/AlGaN ferromagnetic semiconductor double quantum well superlattices"}],"description":[{"notation":[{"@value":"Abstract   Symmetric GaGdN/AlGaN (Gd concentration: 2%) and GaN/AlGaN double quantum well superlattices (DQW-SLs) were grown by radio-frequency plasma-assisted molecular-beam epitaxy on GaN (0001) templates. Atomic steps were observed on all the sample surfaces by atomic force microscope. X-ray diffraction  θ /2 θ  scan curves exhibited well-defined satellite structures. Room temperature ferromagnetism was confirmed for the GaGdN/AlGaN DQW-SL samples by using alternating gradient magnetometer. Strong photoluminescence was observed from both GaGdN and GaN QWs at higher energy side of GaN excitonic peak. Magneto-photoluminescence spectra for GaGdN/AlGaN DQW-SL samples showed a large magnetic field dependence of the excitonic energy by applying a magnetic field up to 7 T. The observed strong redshift of excitonic PL indicated an enhancement of Zeeman splitting of the free carrier energy levels in magnetic GaGdN/AlGaN DQW-SL. Enhanced  g -factor was estimated to be about 60 for GaGdN/AlGaN DQW-SL sample with QW thickness of 1 nm."}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1380284919323514628","@type":"Researcher","foaf:name":[{"@value":"YiKai Zhou"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284919323514627","@type":"Researcher","foaf:name":[{"@value":"Mohamed Almokhtar"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284919323514626","@type":"Researcher","foaf:name":[{"@value":"Hitoshi Kubo"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284919323514629","@type":"Researcher","foaf:name":[{"@value":"Nobuya Mori"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284919323514625","@type":"Researcher","foaf:name":[{"@value":"Shuichi Emura"}]},{"@id":"https://cir.nii.ac.jp/crid/1030003658330223361","@type":"Researcher","personIdentifier":[{"@type":"KAKEN_RESEARCHERS","@value":"50189528"},{"@type":"NRID","@value":"1000050189528"},{"@type":"NRID","@value":"9000356482323"},{"@type":"NRID","@value":"9000402036169"},{"@type":"NRID","@value":"9000398967185"},{"@type":"NRID","@value":"9000284282629"},{"@type":"NRID","@value":"9000258179316"},{"@type":"NRID","@value":"9000056038534"},{"@type":"NRID","@value":"9000402002170"},{"@type":"NRID","@value":"9000246833014"},{"@type":"NRID","@value":"9000401857002"},{"@type":"NRID","@value":"9000258164025"},{"@type":"NRID","@value":"9000392737394"},{"@type":"NRID","@value":"9000401652906"},{"@type":"NRID","@value":"9000402002981"},{"@type":"NRID","@value":"9000258125988"},{"@type":"NRID","@value":"9000401734151"},{"@type":"NRID","@value":"9000258134368"},{"@type":"NRID","@value":"9000024960278"},{"@type":"NRID","@value":"9000238880254"},{"@type":"NRID","@value":"9000238875022"},{"@type":"NRID","@value":"9000252985455"},{"@type":"NRID","@value":"9000402018882"},{"@type":"NRID","@value":"9000402004235"},{"@type":"NRID","@value":"9000402046877"},{"@type":"NRID","@value":"9000401744739"},{"@type":"NRID","@value":"9000254562903"},{"@type":"NRID","@value":"9000402018797"},{"@type":"NRID","@value":"9000402017596"},{"@type":"NRID","@value":"9000401742896"},{"@type":"NRID","@value":"9000402012050"},{"@type":"NRID","@value":"9000401722026"},{"@type":"NRID","@value":"9000107343188"},{"@type":"NRID","@value":"9000001650602"},{"@type":"NRID","@value":"9000392724072"},{"@type":"NRID","@value":"9000401669349"},{"@type":"NRID","@value":"9000258178727"},{"@type":"NRID","@value":"9000024948170"},{"@type":"NRID","@value":"9000415105152"},{"@type":"NRID","@value":"9000025084218"},{"@type":"NRID","@value":"9000238896684"},{"@type":"NRID","@value":"9000402027106"},{"@type":"NRID","@value":"9000107389851"},{"@type":"NRID","@value":"9000401626886"},{"@type":"NRID","@value":"9000401704533"},{"@type":"NRID","@value":"9000258174722"},{"@type":"NRID","@value":"9000252979167"},{"@type":"NRID","@value":"9000401637349"},{"@type":"NRID","@value":"9000401803372"},{"@type":"RESEARCHMAP","@value":"https://researchmap.jp/Shigehiko_Hasegawa"}],"foaf:name":[{"@value":"Shigehiko Hasegawa"}]},{"@id":"https://cir.nii.ac.jp/crid/1380284919323514624","@type":"Researcher","foaf:name":[{"@value":"Hajime Asahi"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00381098"}],"prism:publicationName":[{"@value":"Solid State Communications"}],"dc:publisher":[{"@value":"Elsevier BV"}],"prism:publicationDate":"2012-07","prism:volume":"152","prism:number":"14","prism:startingPage":"1270","prism:endingPage":"1273"},"reviewed":"false","dc:rights":["https://www.elsevier.com/tdm/userlicense/1.0/","https://www.elsevier.com/legal/tdmrep-license"],"url":[{"@id":"https://api.elsevier.com/content/article/PII:S003810981200138X?httpAccept=text/xml"},{"@id":"https://api.elsevier.com/content/article/PII:S003810981200138X?httpAccept=text/plain"}],"createdAt":"2012-04-24","modifiedAt":"2025-09-22","project":[{"@id":"https://cir.nii.ac.jp/crid/1040000782070724992","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"21360023"},{"@type":"JGN","@value":"JP21360023"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21360023/"}],"notation":[{"@language":"ja","@value":"スピン依存弾道電子マッピング法の開発と半導体へのスピン注入機構の解明"},{"@language":"en","@value":"Study on spin dependent ballistic electron mapping and spin injectioninto semiconductors"}]},{"@id":"https://cir.nii.ac.jp/crid/1040282257116955648","@type":"Project","projectIdentifier":[{"@type":"KAKEN","@value":"23104508"},{"@type":"JGN","@value":"JP23104508"},{"@type":"URI","@value":"https://kaken.nii.ac.jp/grant/KAKENHI-PUBLICLY-23104508/"}],"notation":[{"@language":"ja","@value":"スピノーダル分解を利用した新規スピントロニクス材料及びデバイス応用に関する研究"}]}],"relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1360002217083349120","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Large magnetization in high Gd concentration GaGdN and Si-doped GaGdN grown at low temperatures"}]},{"@id":"https://cir.nii.ac.jp/crid/1360011143588598272","@type":"Article","relationType":["references"],"jpcoar:relatedTitle":[{"@value":"Electrically injected InAs∕GaAs quantum dot spin laser operating at 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