Refine your search�ソスF     
Report No.

Magnon pairs and spin-nematic correlation in the spin Seebeck effect

Hirobe, Daichi*; Sato, Masahiro*; Hagihara, Masato*   ; Shiomi, Yuki*; Masuda, Takatsugu*; Saito, Eiji

Investigating exotic magnetic materials with spintronic techniques is effective at advancing magnetism as well as spintronics. In this work, we report unusual field-induced suppression of the spin Seebeck effect (SSE) in a quasi-one-dimensional frustrated spin-$$frac{1}{2}$$ magnet LiCuVO$$_4$$, known to exhibit spin-nematic correlation in a wide range of external magnetic field $$B$$. The suppression takes place above $$|B| gtrsim 2$$ T in spite of the $$B$$-linear isothermal magnetization curves in the same $$B$$ range. The result can be attributed to the growth of the spin-nematic correlation while increasing $$B$$. The correlation stabilizes magnon pairs carrying spin 2, thereby suppressing the interfacial spin injection of SSE by preventing the spin-1 exchange between single magnons and conduction electrons at the interface. This interpretation is supported by integrating thermodynamic measurements and theoretical analysis on the SSE.



- Accesses




Category:Physics, Multidisciplinary



[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.