Direct observation of cycloidal spin modulation and field-induced transition in N\'eel-type skyrmion-hosting VOSe$_2$O$_5$

التفاصيل البيبلوغرافية
العنوان: Direct observation of cycloidal spin modulation and field-induced transition in N\'eel-type skyrmion-hosting VOSe$_2$O$_5$
المؤلفون: Kurumaji, T., Nakajima, T., Feoktystov, A., Babcock, E., Salhi, Z., Ukleev, V., Arima, T., Kakurai, K., Tokura, Y.
المصدر: J. Phys. Soc. Jpn. 90, 024705 (2021)
سنة النشر: 2019
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Strongly Correlated Electrons
الوصف: We investigate the spin rotational structure of magnetic skyrmions in a tetragonal polar magnet VOSe2O5 via polarized small-angle neutron scattering (SANS). Spin polarization analysis of the scattered neutrons provides consistent evidence for the cycloidal spin modulation in all the incommensurate phases at zero and non-zero magnetic field along the c axis, including the triangular skyrmion-lattice phase. In the vicinity of the skyrmion phase, we performed extensive SANS measurements to unravel a field-induced incommensurate phase (IC-2 state). We discuss the possibility of anisotropic double-q state as an alternative spin structure to provisional square skyrmion-lattice state.
Comment: 27 pages, 5 figures
نوع الوثيقة: Working Paper
DOI: 10.7566/JPSJ.90.024705
URL الوصول: http://arxiv.org/abs/1912.06309
رقم الأكسشن: edsarx.1912.06309
قاعدة البيانات: arXiv