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2017 | 131 | 4 | 985-987
Article title

Charge Transport and Magnetism in Tm_{0.03}Yb_{0.97}B₁₂

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Transport and magnetic properties of polycrystalline Tm_{0.03}Yb_{0.97}B₁₂ samples were investigated at temperatures 1.8-300 K in magnetic fields up to 9 T. The activated behavior of resistivity, the Hall coefficient and thermopower is described in terms of a narrow gap ε_g ≈ 16.6 meV, which controls the charge transport in Tm_{0.03}Yb_{0.97}B₁₂ at T>40 K. The maximum of magnetic susceptibility found at 50 K is shown to be induced by a spin gap Δ ≈ 4.7 meV being close to the half of the spin fluctuation energy in YbB₁₂. Large diffusive thermopower S=AT, A=-29.1 μV/K² and the Pauli susceptibility χ₀ ≈ 7.2×10¯³ emu/mol found below 20 K seem to be associated with the many-body resonance, which corresponds to states with an enhanced effective mass m* ≈ 250m₀ (m₀ - free electron mass). The effective parameters of magnetic centers and the analysis of anomalies favor the nonequivalent states of substitute Tm ions.
Physical description
  • [1] F. Iga, N. Shimizu, T. Takabatake, J. Magn. Magn. Mater. 177-181, 337 (1998), doi: 10.1016/S0304-8853(97)00493-9
  • [2] B. Gorshunov, P. Haas, O. Ushakov, M. Dressel, F. Iga, Phys. Rev. B 73, 045207 (2006), doi: 10.1103/PhysRevB.73.045207
  • [3] N. Sluchanko, L. Bogomolov, V. Glushkov, S. Demishev, M. Ignatov, Eu. Khayrullin, N. Samarin, D. Sluchanko, A. Levchenko, N. Shitsevalova, K. Flachbart, Phys. Status Solidi B 243, R63 (2006), doi: 10.1002/pssb.200642197
  • [4] K. Flachbart, S. Gabáni, K. Gloos, M. Meissner, M. Opel, Y. Paderno, V. Pavlík, P. Samuely, E. Schuberth, N. Shitsevalova, K. Siemensmeyer, P. Szabó, J. Low Temp. Phys. 140, 239 (2005), doi: 10.1007/s10909-005-7320-7
  • [5] H. Weng, J. Zhao, Zh. Wang, Zh. Fang, Xi Dai, Phys. Rev. Lett. 112, 016403 (2014), doi: 10.1103/PhysRevLett.112.016403
  • [6] F. Iga, S. Hiura, J. Klijn, N. Shimizu, T. Takabatake, M. Ito, Y. Matsumoto, F. Masaki, T. Suzuki, T. Fujita, Physica B 259-261, 312 (1999), doi: 10.1016/S0921-4526(98)01096-5
  • [7] K.S. Nemkovski, P.A. Alekseev, J.-M. Mignot, E.A. Goremychkin, A.A. Nikonov, O.E. Parfenov, V.N. Lazukov, N.Yu. Shitsevalova, A.V. Dukhnenko, Phys. Rev. B 81, 125108 (2010), doi: 10.1103/PhysRevB.81.125108
  • [8] N.E. Sluchanko, A.V. Bogach, V.V. Glushkov, S.V. Demishev, K.S. Lyubshov, D.N. Sluchanko, A.V. Levchenko, A.B. Dukhnenko, V.B. Filipov, S. Gabáni, K. Flachbart, JETP Lett. 89, 256 (2009), doi: 10.1134/S0021364009050099
  • [9] N.E. Sluchanko, A.N. Azarevich, A.V. Bogach, V.V. Glushkov, S.V. Demishev, M.A. Anisimov, A.V. Levchenko, V.B. Filipov, N.Yu. Shitsevalova, J. Exp. Theor. Phys. 115, 509 (2012), doi: 10.1134/S1063776112090130
  • [10] A.V. Bogach, N.E. Sluchanko, V.V. Glushkov, S.V. Demishev, A.N. Azarevich, V.B. Filippov, N.Yu. Shitsevalova, A.V. Levchenko, J. Vanacken, V.V. Moshchalkov, S. Gabani, K. Flachbart, J. Exp. Theor. Phys. 116, 838 (2013), doi: 10.1134/S1063776113050026
  • [11] P.A. Alekseev, K.S. Nemkovski, J.-M. Mignot, E.S. Clementyev, A.S. Ivanov, S. Rols, R.I. Bewley, V.B. Filipov, N.Yu. Shitsevalova, Phys. Rev. B 89, 115121 (2014), doi: 10.1103/PhysRevB.89.115121
  • [12] V.V. Glushkov, A.V. Kuznetsov, O.A. Churkin, S.V. Demishev, Yu.B. Paderno, N.Yu. Shitsevalova, N.E. Sluchanko, Physica B 378-380, 614 (2006), doi: 10.1016/j.physb.2006.01.167
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