Kibble-Zurek scalings of continuous magnetic phase transitions in spin-1 spin-orbit-coupled Bose-Einstein condensates

2017 ◽  
Vol 95 (6) ◽  
Author(s):  
Shuyuan Wu ◽  
Yongguan Ke ◽  
Jiahao Huang ◽  
Chaohong Lee
Keyword(s):  
Phase Transitions ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions ◽  
Spin Orbit ◽  
Bose Einstein

scholarly journals Topological phase transition and charge-spin coupling in the kagome metal YMn6Sn6

2021 ◽  
Author(s):  
Peter Siegfried ◽  
Hari Bhandari ◽  
D Jones ◽  
Madhav Ghimire ◽  
Rebecca Dally ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Magnetic Phase ◽  
Spin Coupling ◽  
Magnetic Phase Transitions ◽  
Spin Orbit Coupling ◽  
Topological Phase ◽  
Spin Orbit ◽  
Topological Phase Transition ◽  
Lifshitz Transitions ◽  
Strong Spin

Abstract The Fermi surface (FS) is essential for understanding the properties of metals. It can change under both conventional symmetry-breaking phase transitions and Lifshitz transitions (LTs), where the FS, but not the crystal symmetry, changes abruptly. Magnetic phase transitions involving uniformly rotating spin textures are conventional in nature, requiring strong spin-orbit coupling (SOC) to influence the FS topology and generate measurable properties. LTs driven by a continuously varying magnetization are rarely discussed. Here we present two such manifestations in the magnetotransport of the kagome magnet YMn6Sn6; one caused by changes in the magnetic structure and another by a magnetization-driven LT. The former yields a 10% magnetoresistance enhancement without a strong SOC, while the latter a 45% reduction in the resistivity. These phenomena offer a unique view into the interplay of magnetism and electronic topology, crucial for understanding the rare-earth counterparts, such as TbMn6Sn6, recently shown to harbor novel correlated topological physics.

scholarly journals Magnetic phase transitions in Eu( Co1−xNix)2−yAs2 single crystals

2020 ◽  
Vol 4 (8) ◽  
Author(s):  
N. S. Sangeetha ◽  
Santanu Pakhira ◽  
D. H. Ryan ◽  
V. Smetana ◽  
A.-V. Mudring ◽  
...  
Keyword(s):  
Phase Transitions ◽  
Single Crystals ◽  
Magnetic Phase ◽  
Magnetic Phase Transitions
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