%0 Journal Article %1 PhysRevB.105.064426 %A He, Yangkun %A Helm, Toni %A Soldatov, Ivan %A Schneider, Sebastian %A Pohl, Darius %A Srivastava, Abhay Kant %A Sharma, Ankit Kumar %A Kroder, Johannes %A Schnelle, Walter %A Schaefer, Rudolf %A Rellinghaus, Bernd %A Fecher, Gerhard H. %A Parkin, Stuart S. P. %A Felser, Claudia %D 2022 %I American Physical Society %J Phys. Rev. B %K b %N 6 %P 064426 %R 10.1103/PhysRevB.105.064426 %T Nanoscale magnetic bubbles in Nd$_2$Fe$_14$B at room temperature %U https://link.aps.org/doi/10.1103/PhysRevB.105.064426 %V 105 %X The increasing demand for computer data storage with a higher recording density can be addressed by using smaller magnetic objects, such as bubble domains. Small bubbles predominantly require a strong saturation magnetization combined with a large magnetocrystalline anisotropy to resist self-demagnetization. These conditions are well satisfied for highly anisotropic materials. Here, we study the domain structure of thin Nd2Fe14B lamellae. Magnetic bubbles with a minimum diameter of 74 nm were observed at room temperature, approaching even the range of magnetic skyrmions. The stripe domain width and the bubble size are both thickness dependent. Furthermore, a kind of bubble was observed below the spin-reorientation transition temperature that combine bubbles with opposite helicity. In this paper, we reveal Nd2Fe14B to be a good candidate for a high-density magnetic bubble-based memory.

@article{PhysRevB.105.064426, abstract = {The increasing demand for computer data storage with a higher recording density can be addressed by using smaller magnetic objects, such as bubble domains. Small bubbles predominantly require a strong saturation magnetization combined with a large magnetocrystalline anisotropy to resist self-demagnetization. These conditions are well satisfied for highly anisotropic materials. Here, we study the domain structure of thin Nd2Fe14B lamellae. Magnetic bubbles with a minimum diameter of 74 nm were observed at room temperature, approaching even the range of magnetic skyrmions. The stripe domain width and the bubble size are both thickness dependent. Furthermore, a kind of bubble was observed below the spin-reorientation transition temperature that combine bubbles with opposite helicity. In this paper, we reveal Nd2Fe14B to be a good candidate for a high-density magnetic bubble-based memory.}, added-at = {2023-01-02T15:55:37.000+0100}, author = {He, Yangkun and Helm, Toni and Soldatov, Ivan and Schneider, Sebastian and Pohl, Darius and Srivastava, Abhay Kant and Sharma, Ankit Kumar and Kroder, Johannes and Schnelle, Walter and Schaefer, Rudolf and Rellinghaus, Bernd and Fecher, Gerhard H. and Parkin, Stuart S. P. and Felser, Claudia}, biburl = {https://www.bibsonomy.org/bibtex/2de64af902505da12d9bf95594ec4c136/ctqmat}, day = 18, description = {Nanoscale magnetic bubbles in Nd2Fe14B at room temperature}, doi = {10.1103/PhysRevB.105.064426}, interhash = {ea59402788327d0f3989cbdbbcb1ad1f}, intrahash = {de64af902505da12d9bf95594ec4c136}, journal = {Phys. Rev. B}, keywords = {b}, month = {02}, number = 6, numpages = {8}, pages = 064426, publisher = {American Physical Society}, timestamp = {2023-10-18T15:09:41.000+0200}, title = {Nanoscale magnetic bubbles in Nd$_{\mathbf{2}}$Fe$_{\mathbf{14}}$B at room temperature}, url = {https://link.aps.org/doi/10.1103/PhysRevB.105.064426}, volume = 105, year = 2022 }