An emerging global picture of heavy fermion physics

Y Yang - Journal of Physics: Condensed Matter, 2022 - iopscience.iop.org
Recent progresses using state-of-the-art experimental techniques have motivated a number
of new insights on heavy fermion physics. This article gives a brief summary of the author's …

Fingerprints for anisotropic Kondo lattice behavior in the quasiparticle dynamics of the kagome metal

DH Gim, D Wulferding, C Lee, H Cui, K Nam, MJ Han… - Physical Review B, 2023 - APS
We present a temperature-and polarization-resolved phononic and electronic Raman
scattering study in combination with the first-principles calculations on the kagome metal Ni …

Nonlocal Kondo effect and quantum critical phase in heavy-fermion metals

J Wang, Y Yang - Physical Review B, 2021 - APS
Heavy-fermion metals typically exhibit an unconventional quantum critical point or quantum
critical phase at zero temperature due to the competition of the Kondo effect and magnetism …

Temperature evolution of quasiparticle dispersion and dynamics in semimetallic via high-resolution angle-resolved photoemission spectroscopy and …

SX Zhu, C Zhang, QY Wu, XF Tang, H Liu, ZT Liu… - Physical Review B, 2021 - APS
High-resolution angle-resolved photoemission spectroscopy and ultrafast optical pump-
probe spectroscopy were used to study semimetallic 1 T-TiTe 2 quasiparticle dispersion and …

Ultrafast carrier and lattice dynamics in the Dirac semimetal

L Cheng, FC Fei, H Hu, YM Dai, FQ Song, J Qi - Physical Review B, 2022 - APS
Here, using the ultrafast optical pump-probe spectroscopy, we have studied the
quasiparticle dynamics in the type-II Dirac semimetal NiTe 2. Anomalous dynamic optical …

Development of long-range phase coherence on the Kondo lattice

JJ Dong, Y Yang - Physical Review B, 2022 - APS
Despite many efforts, we still lack a clear picture of how heavy electrons emerge and
develop on the Kondo lattice. Here we introduce a key concept named the hybridization …

Unveiling the hybridization process in a quantum critical ferromagnet by ultrafast optical spectroscopy

YH Pei, YJ Zhang, ZX Wei, YX Chen, K Hu, Y Yang… - Physical Review B, 2021 - APS
We report the ultrafast optical pump-probe spectroscopy measurements on the recently
discovered quantum critical ferromagnet CeRh 6 Ge 4. Our experimental results reveal the …

Exploring intrinsic magnetic topological insulators: The case of

H Liu, QY Wu, C Zhang, J Pang, B Chen, JJ Song… - Physical Review B, 2024 - APS
In this paper, ultrafast optical spectroscopy was employed to elucidate the intricate
topological features of EuIn 2 As 2, a promising candidate for a magnetic topological …

Nonequilibrium electron and lattice dynamics of under pressure

K Zhang, J **e, J Yang, H Jiang, S Zhang, Z Zeng… - Physical Review B, 2022 - APS
Combined measurements including Raman scattering and optical pump-probe
spectroscopy (OPPS) are carried out to investigate the lattice and electron dynamics of Sb 2 …

Coupling of optical phonons with Kondo effect and magnetic order in the antiferromagnetic Kondo-lattice compound

YZ Zhao, QY Wu, C Zhang, B Chen, W **a, JJ Song… - Physical Review B, 2023 - APS
Ultrafast optical spectroscopy was used to investigate the ultrafast quasiparticle dynamics of
antiferromagnetic Kondo lattice CeAuSb 2 as a function of temperature and fluence. Our …