%0 Journal Article %1 Gangwar_2021 %A Gangwar, Vinod K %A Kumar, Shiv %A Singh, Mahima %A Singh, Prajyoti %A Ghosh, Labanya %A Pal, Debarati %A Shahi, Prashant %A Uwatoko, Yoshiya %A Schwier, Eike F %A Shimada, K %A Sharma, Durgesh Kumar %A Kumar, Sudhir %A Chatterjee, Sandip %D 2021 %I IOP Publishing %J J. Phys. D: Appl. Phys %K b %N 45 %P 455302 %R 10.1088/1361-6463/ac128f %T Observation of antiferromagnetic ordering from muon spin resonance study and the Kondo effect in a Dy-doped Bi$_2$Se$_3$ topological insulator %U https://dx.doi.org/10.1088/1361-6463/ac128f %V 54 %X The transport and magnetic properties as well as the microscopic electronic properties of the Dy-doped topological insulator Bi2Se3 (Bi1.9Dy0.1Se3) are examined in detail. It is demonstrated that Dy doping induces antiferromagnetic (AFM) ordering in Bi2Se3. It is also observed that Dy doping opens a surface band gap of ∼52 meV at 6.5 K. The transition from AFM to ferromagnetic occurs at a lower temperature, ∼5 K in a magnetic field of ∼3 T. Furthermore, Dy doping in Bi2Se3 leads to the Kondo effect and weak localization to weak anti-localization crossover. Muon spin resonance measurements indicate that the signal measured with magnetization reflects the magnetic properties of 2% of the sample. The experimental findings are supported by theoretical calculations based on density functional theory.

@article{Gangwar_2021, abstract = {The transport and magnetic properties as well as the microscopic electronic properties of the Dy-doped topological insulator Bi2Se3 (Bi1.9Dy0.1Se3) are examined in detail. It is demonstrated that Dy doping induces antiferromagnetic (AFM) ordering in Bi2Se3. It is also observed that Dy doping opens a surface band gap of ∼52 meV at 6.5 K. The transition from AFM to ferromagnetic occurs at a lower temperature, ∼5 K in a magnetic field of ∼3 T. Furthermore, Dy doping in Bi2Se3 leads to the Kondo effect and weak localization to weak anti-localization crossover. Muon spin resonance measurements indicate that the signal measured with magnetization reflects the magnetic properties of 2% of the sample. The experimental findings are supported by theoretical calculations based on density functional theory.}, added-at = {2023-11-16T19:03:20.000+0100}, author = {Gangwar, Vinod K and Kumar, Shiv and Singh, Mahima and Singh, Prajyoti and Ghosh, Labanya and Pal, Debarati and Shahi, Prashant and Uwatoko, Yoshiya and Schwier, Eike F and Shimada, K and Sharma, Durgesh Kumar and Kumar, Sudhir and Chatterjee, Sandip}, biburl = {https://www.bibsonomy.org/bibtex/27a568f68205830e23090538182db3973/ctqmat}, day = 24, doi = {10.1088/1361-6463/ac128f}, interhash = {2ae721011d8060f94a7c11581dda0df8}, intrahash = {7a568f68205830e23090538182db3973}, journal = {J. Phys. D: Appl. Phys}, keywords = {b}, month = {08}, number = 45, pages = 455302, publisher = {IOP Publishing}, timestamp = {2023-11-16T19:03:20.000+0100}, title = {Observation of antiferromagnetic ordering from muon spin resonance study and the Kondo effect in a Dy-doped Bi$_{\mathbf{2}}$Se$_{\mathbf{3}}$ topological insulator}, url = {https://dx.doi.org/10.1088/1361-6463/ac128f}, volume = 54, year = 2021 }