{"title":"12R-BaTi0.4Mn0.6O3中弱自旋声子耦合特征的拉曼研究","authors":"B. Poojitha, Anjali Rathore, S. Saha","doi":"10.1063/5.0016711","DOIUrl":null,"url":null,"abstract":"Antiferromagnetic materials with strong spin-phonon coupling have the potential for spintronic applications. Here, we report the structural, magnetic, and vibrational properties of 12R-BaTi0.4Mn0.6O3. Temperature-dependent magnetization data show the presence of weak antiferromagnetic interactions. Correlation between magnetic and vibrational properties are probed by using temperature-dependent Raman spectroscopic measurements. Two of the Raman active phonons show deviation from anharmonic behaviour at low temperatures which can be attributed to spin-phonon coupling. The strength of coupling is estimated using mean-field approximation and is found to be 1.1 and 1.2 cm−1 for phonons at 530 and 717 cm−1, respectively.","PeriodicalId":222119,"journal":{"name":"DAE SOLID STATE PHYSICS SYMPOSIUM 2019","volume":"26 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Signatures of weak spin-phonon coupling in 12R-BaTi0.4Mn0.6O3: A Raman study\",\"authors\":\"B. Poojitha, Anjali Rathore, S. Saha\",\"doi\":\"10.1063/5.0016711\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Antiferromagnetic materials with strong spin-phonon coupling have the potential for spintronic applications. Here, we report the structural, magnetic, and vibrational properties of 12R-BaTi0.4Mn0.6O3. Temperature-dependent magnetization data show the presence of weak antiferromagnetic interactions. Correlation between magnetic and vibrational properties are probed by using temperature-dependent Raman spectroscopic measurements. Two of the Raman active phonons show deviation from anharmonic behaviour at low temperatures which can be attributed to spin-phonon coupling. The strength of coupling is estimated using mean-field approximation and is found to be 1.1 and 1.2 cm−1 for phonons at 530 and 717 cm−1, respectively.\",\"PeriodicalId\":222119,\"journal\":{\"name\":\"DAE SOLID STATE PHYSICS SYMPOSIUM 2019\",\"volume\":\"26 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2020-11-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"DAE SOLID STATE PHYSICS SYMPOSIUM 2019\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1063/5.0016711\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"DAE SOLID STATE PHYSICS SYMPOSIUM 2019","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1063/5.0016711","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Signatures of weak spin-phonon coupling in 12R-BaTi0.4Mn0.6O3: A Raman study
Antiferromagnetic materials with strong spin-phonon coupling have the potential for spintronic applications. Here, we report the structural, magnetic, and vibrational properties of 12R-BaTi0.4Mn0.6O3. Temperature-dependent magnetization data show the presence of weak antiferromagnetic interactions. Correlation between magnetic and vibrational properties are probed by using temperature-dependent Raman spectroscopic measurements. Two of the Raman active phonons show deviation from anharmonic behaviour at low temperatures which can be attributed to spin-phonon coupling. The strength of coupling is estimated using mean-field approximation and is found to be 1.1 and 1.2 cm−1 for phonons at 530 and 717 cm−1, respectively.
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