@article{50f0c4addd8f43d78bf2ba989693fe94,
title = "Anomalous Temperature Behavior of the Chiral Spin Helix in CrNb3 S6 Thin Lamellae",
abstract = "Using Lorentz transmission electron microscopy and small-angle electron scattering techniques, we investigate the temperature-dependent evolution of a magnetic stripe pattern period in thin-film lamellae of the prototype monoaxial chiral helimagnet CrNb3S6. The sinusoidal stripe pattern appears due to formation of a chiral helimagnetic order (CHM) in this material. We found that as the temperature increases, the CHM period is initially independent of temperature and then starts to shrink above the temperature of about 90 K, which is far below the magnetic phase transition temperature for the bulk material Tc (123 K). The stripe order disappears at around 140 K, far above Tc. We argue that this cascade of transitions reflects a three-stage hierarchical behavior of melting in two dimensions.",
author = "Y. Togawa and J. Kishine and Nosov, {P. A.} and T. Koyama and Paterson, {G. W.} and S. McVitie and Y. Kousaka and J. Akimitsu and M. Ogata and Ovchinnikov, {A. S.}",
note = "Funding Information: We thank V. E. Dmitrienko, Y. Kato, D. Aristov, S. Grigoriev, J. Campo, V. Laliena, and I. Proskurin for useful discussions. Y. T. and T. K appreciate Y. Fujiyoshi for providing us an opportunity to use the seventh generation cryogenic transmission electron microscope suitable for TEM observations at low temperatures for many hours. Y. T. and J. K. acknowledge support from Grant-in-Aids for Scientific Research (No. 25220803, No. 17H02767, No. 17H02923). A. S. O. and P. A. N. acknowledge funding by the RFBR, Grant No. 17-52-50013, and the Foundation for the Advancement to Theoretical Physics and Mathematics BASIS Grant No. 17-11-107. This work was supported by Chirality Research Center (Crescent) in Hiroshima University. The work was also supported by the Government of the Russian Federation Program No. 02.A03.21.0006, JSPS and RFBR under the Japan-Russia Research Cooperative Program, JSPS Core-to-Core Program, A. Advanced Research Networks, and U.K. research council, EPSRC, Grant No. EP/M024423/1. Publisher Copyright: {\textcopyright} 2019 American Physical Society. American Physical Society.",
year = "2019",
month = jan,
day = "9",
doi = "10.1103/PhysRevLett.122.017204",
language = "English",
volume = "122",
journal = "Physical Review Letters",
issn = "0031-9007",
publisher = "American Physical Society",
number = "1",
}