visual
visual

세미나

  • HOME
  • >
  • 소식
  • >
  • 세미나
날짜 2017-07-10 16:00 
연사  
장소 Jul. 10th (Mon), 4pm 

“Intertwined Orders in a Heavy-fermion metal”

 

Dr. Duk Young Kim

Los Alamos National Laboratory

 

Jul. 10th (Mon), 4pm

#1323(E6-2. 1st fl.)

 

The role of magnetic fluctuations is a major interest in recent studies on unconventional superconductivity. The heavy-fermion metal CeCoIn5 provides an interesting platform to study the relationship between magnetism and superconductivity. In the low-temperature and high-field corner of its H-T phase diagram, CeCoIn5 shows a spin-density-wave (SDW) magnetic order coexisting with the superconductivity. This antiferromagnetic order has single domain and switches its orientation very sharply depending on the direction of the magnetic field. This hypersensitivity of the magnetic domain induces a discontinuous change of the thermal conductivity when the magnetic field is rotated in the basal plane of the tetragonal crystal. This measurement reveals the presence of a p-wave Cooper-pair-density-wave (PDW) order that is intimately intertwined with the superconducting d-wave and magnetic SDW orders. The concept of intertwined orders is a new framework to understand high-Tc and iron-based superconductors. CeCoIn5 provides an important example of intertwined orders and establish its superconducting state as potentially a new state of matter.

 

[1]        D. Y. Kim, S.-z. Lin, F. Weickert, M. Kenzelmann, E. D. Bauer, F. Ronning, J. D. Thompson, and R. Movshovich, Physical Review X 6, 041059 (2016).

 

Contact: Prof. Eunseong Kim (T.2547)

20170710_김덕영.pdf

번호 날짜 연사 제목
공지 2025-02-24 16:00    2025년 봄학기 콜로키움 안내
공지 2025-02-27 16:00    2025년 봄 물리학과 특별세미나 (광학/응집물리 분야)
145 2015-11-24 16:00    Topology-based understanding of spin dynamics in inhomogeneously magnetized systems
144 2016-07-08 14:00    Electronic quasiparticles in the quantum dimer model
143 2016-10-18 15:00    “Hybrid quantum systems with mechanical oscillators”
142 2022-12-20 16:00    Studying Baryonic Flow Across the Cosmic Scales Using Radio and Millimeter Wavelength Experiments
141 2015-12-17 11:00    Wavefront engineering for in-vivo Deep brain imaging
140 2018-07-27 13:30    Magnetic reversal of artificial spin ice file
139 2018-07-27 13:30    Magnetic reversal of artificial spin ice file
138 2017-07-14 15:00    Chiral anomaly in disordered Weyl semimetals file
137 2024-06-12 13:30    Competition between superconductivity and density waves in spin-degenerate and spin-orbit-coupled Bernal bilayer graphene
136 2019-11-01 16:00    Electron transport through weak-bonded contact metal with low dimensional nano-material file
135 2022-11-04 16:30    초세대 협업연구실 Quantum- & Nano-Photonics_Multifunctional neural probes with integrated nanophotonics file
134 2019-09-27 14:30    Spin-charge conversion in topological insulators for spintronic applications file
133 2018-12-07 16:00    Novel probes of interacting electrons in 2D systems file
132 2018-10-19 10:00    Energy conversion processes during magnetic reconnection in a laboratory plasma file
131 2016-11-04 13:30    Exotic phenomena at oxide LaAlO3/SrTiO3 hetero-interface and their applications
130 2015-08-03 10:30    Axion Search
129 2016-04-01 16:15    Cotunneling drag effect in Coulomb-coupled quantum dots
128 2019-12-03 16:00    Toward Quantum Materials with Correlated Oxides file
127 2017-03-02 16:00    “Progress in the comparison of ARPES to DMFT for d and f strongly correlated electron systems”
126 2023-05-22 13:00    Design & Development of Electrochemical Biosensors for the Detection of T2DM Biomarkers