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장소 Jul. 10th (Mon), 4pm 
일시 #1323(E6-2. 1st fl.) 
연사 Dr. Duk Young Kim Los Alamos National Laboratory 

“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

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318 May. 14 (Fri.), 04:00 PM  Online seminar  Dr. Je-Hyung Kim(UNIST)  Spatial and temporal separation of environmental dephasing sources from solid-state quantum emitters file
317 Apr. 12 (Tue.), 4 PM  E6-2. 1st fl. #1323  Dr. Jeehoon Kim, POSTECH  Confinement of Superconducting Vortices in Magnetic Force Microscopy
316 Apr. 28 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. JeongYoung Park Graduate School of EEWS, KAIST  Hot electron generation at surfaces and its impact to catalysis and renewable energy conversion
315 2015/12/11, 3:45PM  E6-2, #1323  Dr. Ji Hun Sim (POSTECH)  Dynamical mean field theory studies on heavy fermion system
314 Apr.19 (Fri.), 11:00 AM  #1323, E6-2  Dr. Ji-Sang Park  First-principles studies of semiconductors for solar cell applications file
313 Jun. 11 (Fri.), 02:30 PM  Online seminar  Dr. Jin Woong Cha(KRISS)  Engineering sound waves and vibrations in multi-mode nanomechanical systems file
312 Sep. 27 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Jindong Song  0D/1D/2D/3D III-V materials grown by MBE for Optelectronics file
311 Mar. 16 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. JinHee Kim  산화물 다층박막에서의 다양한 물리현상 file
310 Dec. 8(Thu) 4p.m.  #1323(E6-2. 1st fl.)  Dr. Jinhyoung Lee, Hanyang University  Dynamical Resonance between Two Optical Cavities via Optomechanical Oscillator
309 Mar. 2nd (Thu), 4:00 p.m  #1323(E6-2. 1st fl.)  Dr. Jonathan Denlinger, Lawrence Berkeley National Lab  “Progress in the comparison of ARPES to DMFT for d and f strongly correlated electron systems”
308 December 3 (Tue.), 4:00 PM  #1323, E6-2  Dr. Jong Mok Ok  Toward Quantum Materials with Correlated Oxides file
307 Apr. 01 (Fri.) 4:15 PM  E6-2. 1st fl. #1501  Dr. JONG SOO LIM, KIAS  Cotunneling drag effect in Coulomb-coupled quantum dots
306 2015/08/03,10:30AM  E6-2, #1323 (Seminar Room)  Dr. Jonghee Yoo (Fermi National Accelerator Laboratory, USA )  Axion Search
305 Nov. 04 (Fri), 1:30 PM  E6-2. #1323(1st fl.)  Dr. Jonghyun Song, Department of Physics, Chungnam National University  Exotic phenomena at oxide LaAlO3/SrTiO3 hetero-interface and their applications
304 October 19 (Fri.), 10:00 AM  #1323, E6-2  Dr. Jongsoo Yoo  Energy conversion processes during magnetic reconnection in a laboratory plasma file
303 Dec. 7 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Joon Ho Jang  Novel probes of interacting electrons in 2D systems file
302 Sep. 27 (Fri.), 02:30 PM  E6-2. 1st fl. #1323  Dr. Joon Sue Lee  Spin-charge conversion in topological insulators for spintronic applications file
301 Nov. 1 (Fri.), 04:00 PM  E6-2. 1st fl. #1323  Dr. Ju-Jin Kim  Electron transport through weak-bonded contact metal with low dimensional nano-material file
300 July. 14 (Fri.), 3:00 PM  #1323 (E6-2. 1st fl.)  Dr. Jun Hyun Lee / University of Maryland  Chiral anomaly in disordered Weyl semimetals file
299 June 27 (Wed.), 13:30 PM  #1323, E6-2  Dr. Jung Sik Park  Magnetic reversal of artificial spin ice file