Co3Sn2S2


Application field R&D of Weyl semimetals and related investigations
Structure Hexagonal (kagome-lattice)
Cleavage plane (0001)
Growth method GF
Melting point 950 oC
Density:  7.24 g/cm3

 
Co3Sn2S2 single crystal
Cleaved Co3Sn2S2 single crystal
Anomalous Hall in Co3Sn2S2
(a) Giant anomalous Hall effect in our high-quality kagome-lattice semimetal Co3Sn2S2. The Hall resistance Rxy demonstrates hysteresis behavior and sharp switchings at 0.5 T. Arrows indicate the scanning directions. [EPL, 127 (2019) 57002]
(b) Positive, non-saturating longitudinal magnetoresistance in the normal magnetic field, which is a hallmark of compensated semimetals. The measurements are performed at 4.2 K. [EPL, 127 (2019) 57002]


References:

1. O. O. Shvetsov, V. D. Esin, A. V. Timonina, N. N. Kolesnikov, E. V. Deviatov. Multiple magnon modes in the Co3Sn2S2 Weyl semimetal candidate. EPL, 127 (2019) 57002-p1 – 57002-p5.
2. O. O. Shvetsov, V. D. Esin, Yu. S. Barash, A. V. Timonina, N. N. Kolesnikov, and E. V. Deviatov. Lateral Josephson effect on the surface of the magnetic Weyl semimetal Co3Sn2S2. Phys. Rev. B, 2020, v. 101, issue 3, 035304
3. O. O. Shvetsov, Yu. S. Barash, S. V. Egorov, A. V. Timonina, N. N. Kolesnikov, E. V. Deviatov. Magnetically stable zero-bias anomaly in Andreev contact to the magnetic Weyl semimetal Co3Sn2S2. EPL, 132 (2020) 67002.
4. V.D. Esin, A.V. Timonina, N.N. Kolesnikov, E.V. Deviatov. Second-harmonic voltage response for the magnetic Weyl semimetal Co3Sn2S2. JETP Letters 111, p. 685-689 (2020).