Abstract
Magnetization curves of MnSi single crystals have been measured in a range of temperatures T = 5.5–35 K and magnetic field strengths H ≤ 11 kOe for H ∥ [1 1 1], [0 0 1], and [1 1 0]. Special attention has been paid to the temperature interval near T N = 28.8 K, where MnSi exhibits a transition to the state with a long-period helical magnetic structure. Some new features in the magnetic behavior of MnSi have been found. In particular, in an intermediate temperature region above the transition (28.8 K = T N ≤ T < 31.5 K), the dM(H)/dH curves exhibit anomalies that are not characteristic of the typical paramagnetic state. It is established that the line of the characteristic field H*(T) of this anomaly is a natural extrapolation of the temperature dependence of the field of the transition from a conical phase to an induced ferromagnetic phase observed at T < T N. It is concluded that the properties of MnSi in the indicated intermediate region are related to and governed by those of the conical phase (rather than of the A phase). Based on these data, magnetic phase diagrams of MnSi for H ∥ [1 1 1], [0 0 1], and [1 1 0] are plotted and compared to diagrams obtained earlier by other methods.
Similar content being viewed by others
References
P. Bak and M. H. Jensen, J. Phys. C: Solid State Phys. 13, L881 (1980).
S. M. Stishov and A. E. Petrova, Phys.—Usp. 54(11), 1117 (2011).
D. Bloch, J. Voiron, V. Jaccarino, and J. H. Wernick, Phys. Lett. A 51, 259 (1975).
S. V. Maleev, Phys. Rev. B: Condens. Matter 73, 174402 (2006).
S. V. Grigoriev, S. V. Maleyev, A. I. Okorokov, Yu. O. Chetverikov, P. Böni, R. Georgii, D. Lamago, H. Eckerlebe, and K. Pranzas, Phys. Rev. B: Condens. Matter 74, 214414 (2006).
S. Kusaka, K. Yamamoto, T. Komatsubara, and Y. Ishikawa, Solid State Commun. 20, 925 (1976).
Y. Ishikawa, G. Shirane, J. A. Tarvin, and M. Kohgi, Phys. Rev. B: Solid State 16, 4956 (1977).
K. Kadowaki, K. Okuda, and M. Date, J. Phys. Soc. Jpn. 51, 2433 (1982).
C. Thessieu, C. Pfleiderer, A. N. Stepanov, and J. Flouquet, J. Phys.: Condens. Matter 9, 6677 (1997).
S. Mühlbauer, B. Binz, F. Jonietz, C. Pfleiderer, A. Rosch, A. Neubauer, R. Georgii, and P. Böni, Science (Washington) 323, 915 (2009).
A. Neubauer, C. Pfleiderer, B. Binz, A. Rosch, R. Ritz, P. G. Niklowitz, and P. Böni, Phys. Rev. Lett. 102, 186602 (2009).
C. Pfleiderer, A. Neubauer, S. Mühlbauer, F. Jonietz, M. Janoschek, S. Legl, R. Ritz, W. Münzer, C. Franz, P. G. Niklowitz, T. Keller, R. Georgii, P. Böni, B. Binz, A. Rosch, U. K. Rößler, and A. N. Bogdanov, J. Phys.: Condens. Matter 21, 164215 (2009).
C. Pfleiderer, T. Adams, A. Bauer, W. Biberacher, B. Binz, F. Birkelbach, P. Böni, C. Franz, R. Georgii, M. Janoschek, F. Jonietz, T. Keller, R. Ritz, S. Mühlbauer, W. Münzer, A. Neubauer, B. Pedersen, and A. Rosch, J. Phys.: Condens. Matter 22, 164207 (2010).
F. Jonietz, S. Mühlbauer, C. Pfleiderer, A. Neubauer, W. Münzer, A. Bauer, T. Adams, R. Georgii, P. Böni, R. A. Duine, K. Everschor, M. Garst, and A. Rosch, Science (Washington) 330, 1648 (2010).
M. Yamada, T. Goto, and T. Kanomata, J. Alloys Compd. 364, 37 (2004).
S. V. Demishev, A. V. Semeno, A. V. Bogach, V. V. Glushkov, N. E. Sluchanko, N. A. Samarin, and A. L. Chernobrovkin, JETP Lett. 93(4), 213 (2011).
S. V. Demishev, V. V. Glushkov, I. I. Lobanova, M. A. Anisimov, V. Yu. Ivanov, T. V. Ishchenko, M. S. Karasev, N. A. Samarin, N. E. Sluchanko, V. M. Zimin, and A. V. Semeno, Phys. Rev. B: Condens. Matter 85, 045131 (2012).
H. Wernick, G. K. Wertheim, and R. C. Sherwood, Mater. Res. Bull. 7, 1431 (1972).
S. V. Grigoriev, S. V. Maleyev, A. I. Okorokov, Yu. O. Chetverikov, and H. Eckerlebe, Phys. Rev. B: Condens. Matter 73, 224440 (2006).
U. K. Rößler, A. N. Bogdanov, and C. Pfleiderer, Nature (London) 442, 797 (2006).
C. Pappas, E. Lelievre-Berna, P. Falus, P. M. Bentley, E. Moskvin, S. Grigoriev, P. Fouquet, and B. Farago, Phys. Rev. Lett. 102, 197202 (2009).
S. V. Grigoriev, S. V. Maleyev, E. V. Moskvin, V. A. Dyadkin, P. Fouquet, and H. Eckerlebe, Phys. Rev. B: Condens. Matter 81, 144413 (2010).
A. Bauer and C. Pfleiderer, Phys. Rev. B: Condens. Matter 85, 214418 (2012).
Author information
Authors and Affiliations
Corresponding author
Additional information
Original Russian Text © V.N. Narozhnyi, V.N. Krasnorussky, 2013, published in Zhurnal Eksperimental’noi i Teoreticheskoi Fiziki, 2013, Vol. 143, No. 5, pp. 906–911.
The article is based on a preliminary report delivered at the 36th Conference on Low-Temperature Physics (St. Petersburg, July 2–6, 2012).
Rights and permissions
About this article
Cite this article
Narozhnyi, V.N., Krasnorussky, V.N. Specific features of magnetic phase diagram of an MnSi helimagnet. J. Exp. Theor. Phys. 116, 785–790 (2013). https://doi.org/10.1134/S1063776113050087
Published:
Issue Date:
DOI: https://doi.org/10.1134/S1063776113050087