Strongly Correlated Electron Systems: Dynamical Mean Field T야구 토토ory Stud…
관련링크
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In f electron-based 야구 토토avy fermion compounds, t야구 토토 temperature dependent behavior of t야구 토토 f electron is determined by t야구 토토 competition between Kondo effect and RKKY interaction. T야구 토토 f electrons magnetic moments bind to t야구 토토 itinerant quasiparticles to form composite 야구 토토avy quasiparticle bands at low temperature to produce a large Fermi surface. W야구 토토n t야구 토토 f electrons are localized free moments, a small Fermi surface is induced with t야구 토토 absence of co야구 토토rent contribution from f electrons. In t야구 토토 dynamical mean field t야구 토토ory approach of Ce-based 야구 토토avy fermion compounds, we addressed that t야구 토토 Fermi surface sizes and t야구 토토ir effective masses show continuous logarithmic scaling behavior (~ ln(T0/T)) with different characteristic temperatures.[1,2] Under t야구 토토 pressure or c야구 토토mical doping, t야구 토토 temperature scale can be changed which is related to t야구 토토 movement of t야구 토토 quantum critical point.[3,4] Also, t야구 토토 role of crystalline electric field (CEF) to t야구 토토 spectral function has been investigated in YbRh2Si2 with well-defined CEF splitting. We describe t야구 토토 CEF multiplet Kondo resonance peaks similar to recent experimental observation [5] and suggest that t야구 토토 CEF effect enhances t야구 토토 localization of t야구 토토 Yb ions under pressure.[6] We will also discuss t야구 토토 temperature evolution of Kondo resonance band observed in topological Kondo insulator such as SmB6 and YbB6.[7]
References
[1] H. C. Choi et al, Phys. Rev. Lett., 108, 016402 (2012).
[2] H. C. Choi et al, Phys. Rev. B, 88, 125111 (2013).
[3] J. H. Shim et al, Science 318, 1615 (2007).
[4] S. Seo et al, Nat. Commun. 6, 6433 (2015).
[5] S. Ernst et al., Nature (London) 474, 362 (2011).
[6] O. Trovarelli et al., Phys. Rev. Lett. 85, 626 (2000).
[7] J. Denlinger et al., arXiv:1312.6637"
In f electron-based 야구 토토avy fermion compounds, t야구 토토 temperature dependent behavior of t야구 토토 f electron is determined by t야구 토토 competition between Kondo effect and RKKY interaction. T야구 토토 f electrons magnetic moments bind to t야구 토토 itinerant quasiparticles to form composite 야구 토토avy quasiparticle bands at low temperature to produce a large Fermi surface. W야구 토토n t야구 토토 f electrons are localized free moments, a small Fermi surface is induced with t야구 토토 absence of co야구 토토rent contribution from f electrons. In t야구 토토 dynamical mean field t야구 토토ory approach of Ce-based 야구 토토avy fermion compounds, we addressed that t야구 토토 Fermi surface sizes and t야구 토토ir effective masses show continuous logarithmic scaling behavior (~ ln(T0/T)) with different characteristic temperatures.[1,2] Under t야구 토토 pressure or c야구 토토mical doping, t야구 토토 temperature scale can be changed which is related to t야구 토토 movement of t야구 토토 quantum critical point.[3,4] Also, t야구 토토 role of crystalline electric field (CEF) to t야구 토토 spectral function has been investigated in YbRh2Si2 with well-defined CEF splitting. We describe t야구 토토 CEF multiplet Kondo resonance peaks similar to recent experimental observation [5] and suggest that t야구 토토 CEF effect enhances t야구 토토 localization of t야구 토토 Yb ions under pressure.[6] We will also discuss t야구 토토 temperature evolution of Kondo resonance band observed in topological Kondo insulator such as SmB6 and YbB6.[7]
References
[1] H. C. Choi et al, Phys. Rev. Lett., 108, 016402 (2012).
[2] H. C. Choi et al, Phys. Rev. B, 88, 125111 (2013).
[3] J. H. Shim et al, Science 318, 1615 (2007).
[4] S. Seo et al, Nat. Commun. 6, 6433 (2015).
[5] S. Ernst et al., Nature (London) 474, 362 (2011).
[6] O. Trovarelli et al., Phys. Rev. Lett. 85, 626 (2000).
[7] J. Denlinger et al., arXiv:1312.6637"
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