Dresden 2014 – scientific programme
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TT: Fachverband Tiefe Temperaturen
TT 79: Correlated Electrons - Poster Session
TT 79.1: Poster
Wednesday, April 2, 2014, 15:00–19:00, P2
Electron Spin Resonance in Yb(Rh0.73Co0.27)2Si2 below 1 K — Ilshat Fazlishanov1,4, •Zakir Seidov1,5, Jörg Sichelschmidt2, Hans-Albrecht Krug von Nidda1, Cornelius Krellner3, Christoph Geibel2, Frank Steglich2, and Manuel Brando2 — 1Experimental Physics V, EKM, University of Augsburg, 86159 Augsburg — 2Max Planck Institute for Chemical Physics of Solids, 01187 Dresden — 3Institute of Physics, Goethe University Frankfurt, 60438 Frankfurt am Main — 4E.K.Zavoisky Physical Technical Institute, Russian Academy of Sciences, 420029 Kazan, Russia — 5Institute of Physics, Azerbaijan National Academy of Sciences, AZ-1143 Baku, Azerbaijan
We report Electron Spin Resonance (ESR) experiments on the heavy-fermion metal Yb(Rh0.73Co0.27)2Si2 in the temperature range 0.75K≤ T≤ 4K. The ESR measurements were performed at X-band frequencies using a home-built 3He cryostat. We found that below 1.3K the ESR spectra of Yb(Rh0.73Co0.27)2Si2 split into two lines. Such a behavior can be explained by the strong anisotropy of the ferromagnetic ground state in agreement with magnetization measurements [1].
S. Lausberg, A. Hannaske, A. Steppke, L. Steinke, T. Gruner, L. Pedrero, C. Krellner, C. Klingner, M. Brando, C. Geibel, F. Steglich, Phys. Rev. Lett. 110, 256402 (2013)