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Pis'ma v Zh. Èksper. Teoret. Fiz., 2016, Volume 103, Issue 5, Pages 365–371 (Mi jetpl4883)  

This article is cited in 3 scientific papers (total in 3 papers)


Effect of magnetic field on the intermediate phase in Mn$_{1-x}$Fe$_{x}$Si: spin-liquid vs. fluctuations scenario

S. V. Demishevab, I. I. Lobanovaab, A. V. Bogacha, V. V. Glushkovab, V. Yu. Ivanova, T. V. Ischenkoa, N. A. Samarina, N. E. Sluchankoa, S. Gabanic, E. Čižmárd, K. Flachbartc, N. M. Chubovae, V. A. Dyadkinef, S. V. Grigorieve

a Prokhorov General Physics Institute of RAS, 119991 Moscow, Russia
b Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russia
c Institute of Experimental Physics SAS, 040 01 Košice, Slovak Republic
d P.J.  Šafárik Univesity in Kožice, SK-04001 Kožice, Slovak Republic
e Petersburg Nuclear Physics Institute, 188300 Gatchina, Russia
f Swiss-Norwegian Beamlines at the European Synchrotron Radiation Facility, 38000 Grenoble, France

Abstract: We report results of the magnetic field influence on the chiral spin liquid state in Mn$_{1-x}$Fe$_x$Si single crystal with iron content $x=0.108$ in proximity of a hidden quantum critical point. The use of small angle neutron scattering data together with magnetic susceptibility measurements down to $0.4$ K and precise magnetoresistance measurements in the temperature range $2$$20$ K in magnetic field up to $5$ T allowed us to construct the magnetic phase diagram of this compound in which at low magnetic fields $B<0.15$ T an intermediate phase with short-range magnetic order exists in a wide temperature range $0.62<T<9.1 $K. It was found that the increase of magnetic field first results in a suppression of transition into spiral phase with long-range magnetic order at very low temperatures, and then induces a transition of the intermediate phase into a spin-polarized (ferromagnetic) phase with lowering temperature. The temperature of this transition $T_{SP}$ increases with magnetic field logarithmically, $T_{SP}\sim\log(B)$, and results in formation of a singular point on the magnetic phase diagram located at $T\sim8.5$ K and $B\sim3.5$ T, which may be either a triple or a critical point. The possible spin-liquid nature of the intermediate phase is discussed.

Funding Agency Grant Number
Russian Foundation for Basic Research 13-02-00160_
Slovak Academy of Sciences VEGA 2/0106/13


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English version:
Journal of Experimental and Theoretical Physics Letters, 2016, 103:5, 321–327

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Document Type: Article
Received: 01.12.2015
Revised: 18.01.2016
Language: English

Citation: S. V. Demishev, I. I. Lobanova, A. V. Bogach, V. V. Glushkov, V. Yu. Ivanov, T. V. Ischenko, N. A. Samarin, N. E. Sluchanko, S. Gabani, E. Čižmár, K. Flachbart, N. M. Chubova, V. A. Dyadkin, S. V. Grigoriev, “Effect of magnetic field on the intermediate phase in Mn$_{1-x}$Fe$_{x}$Si: spin-liquid vs. fluctuations scenario”, Pis'ma v Zh. Èksper. Teoret. Fiz., 103:5 (2016), 365–371; JETP Letters, 103:5 (2016), 321–327

Citation in format AMSBIB
\by S.~V.~Demishev, I.~I.~Lobanova, A.~V.~Bogach, V.~V.~Glushkov, V.~Yu.~Ivanov, T.~V.~Ischenko, N.~A.~Samarin, N.~E.~Sluchanko, S.~Gabani, E.~{\v C}i{\v z}m\'ar, K.~Flachbart, N.~M.~Chubova, V.~A.~Dyadkin, S.~V.~Grigoriev
\paper Effect of magnetic field on the intermediate phase in Mn$_{1-x}$Fe$_{x}$Si: spin-liquid vs. fluctuations scenario
\jour Pis'ma v Zh. \`Eksper. Teoret. Fiz.
\yr 2016
\vol 103
\issue 5
\pages 365--371
\jour JETP Letters
\yr 2016
\vol 103
\issue 5
\pages 321--327

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    This publication is cited in the following articles:
    1. JETP Letters, 104:2 (2016), 116–123  mathnet  crossref  crossref  isi  elib  scopus
    2. Chubova N.M., Moskvin E.V., Dyad'kin V.A., Dewhurst Ch., Maleev S.V., Grigor'ev S.V., “Role of Critical Fluctuations in the Formation of a Skyrmion Lattice in Mnsi”, J. Exp. Theor. Phys., 125:5 (2017), 789–797  crossref  isi  scopus
    3. Grigoriev S.V., Altynbaev E.V., Siegfried S.-A., Pschenichnyi K.A., Menzel D., Heinemann A., Chaboussant G., “Spin-Wave Stiffness in the Dzyaloshinskii-Moriya Helimagnets Mn1-Xfexsi”, Phys. Rev. B, 97:2 (2018), 024409  crossref  isi  scopus
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