Dec 22 (Thu)
Speaker : Suik Cheon
Place & Time : Sci. Bldg 3-201, 4:00pm
Niklas Roschewky, Tomoya Matsumura, Suraj Cheema, Frances Hellman, Takeshi Kato, Satoshi Iwata, and Sayeef Salahuddin
Spin-orbit torques in ferrimagnetic GdFeCo alloys
Appl. Phys. Lett. 109, 112403 (2016)
Dec 9 (Fri)
Speaker : Dongwook Go
Place & Time: Sci. Bldg 3-201, 11:00 a.m.
Raffaello Bianco and Raffaele Resta
Mapping topological order in coordinate space
Raffaello Bianco and Raffaele Resta
Orbital magnetization as a local property
Physical Review Letters 110, 087202 (2013)
Nov 17 (Thu)
Speaker : SeungJu Shin
Place & Time: Sci. Bldg 3-201, 4:00pm
D. MacNeill, G.M. Stiehl, M. H. D. Guimaraes, R. A. Buhrman, J. Park and D. C. Ralph
Control of spin-orbit torques through crystal symmetry in WTe2/Ferromagnet bilayers
Nov 3 (Thu)
Speaker : Sang-Chan Lee
Place & Time: Sci. Bldg 3-201, 4:00pm
Finite-Element Theory of Transport in Ferromagnet–Normal Metal Systems
Arne Brataas, Yu. V. Nazarov, and Gerrit E. W. Bauer
Phys. Rev. Lett. 84, 2481 – Published 13 March 2000
Oct 13 (Thu)
Speaker : Mijin Lim
Place & Time: Sci. Bldg 3-201, 4:00pm
Yi Liu, Zhe Yuan, R. J. H. Wesselink, Anton A. Starikov, and Paul J. Kelly
Interface Enhancement of Gilbert Damping from First Principles
Sep 22 (Thu)
Speaker : Kyung-Han Kim
Place & Time: Sci. Bldg 3-317A, 4:00 p.m.
J. Li, L. R. Shelford, P. Shafer, A. Tan, J. X. Deng, P. S. Keatley, C. Hwang, E. Arenholz, G. van der Laan, R. J. Hicken, and Z. Q. Qiu
Direct Detection of Pure ac Spin Current by X-Ray Pump-Probe Measurements
Sep 8 (Thu)
Speaker : Junghun Son
Place & Time: 3-201, 16:00
Reciprocal control of spin-orbital in surface state
Sep 2 (Fri)
Speaker : Dongwook Go
Place & Time: 3-201, 16:00 ~
Modern theory of orbital magnetization: history and recent advances
References:
[1] D. Xiao, J. Shi, and Q. Niu, Phys. Rev. Lett. 95, 137204 (2005):
Berry Phase Correction to Electron Density of States in Solids.
[2] T. Thonhauser, D. Ceresoli, D. Vanderbilt, and R. Resta, Phys. Rev. Lett. 95, 137205 (2005):
Orbital Magnetization in Periodic Insulators.
[3] D. Ceresoli, T. Thonhauser, D. Vanderbilt, and R. Resta, Phys. Rev. B 74, 024408 (2006):
Orbital magnetization in crystalline solids: Multi-band insulators, Chern insulators, and metals.
[4] J. Shi, G. Vignale, D. Xiao, and Q. Niu, Phys. Rev. Lett. 99, 197202 (2007):
Quantum Theory of Orbital Magnetization and Its Generalization to Interacting Systems.
[5] D. Ceresoli, U. Gerstmann, A. P. Seitsonen, and F. Mauri, Phys. Rev. B 81, 060409(R) (2010):
First-principles theory of orbital magnetization.
[6] T. Thonhauser, Int. Mod. Phys. B 25, 1429 (2011):
Theory of Orbital Magnetization in Solids.
[7] M. G. Lopez, D. Vanderbilt, T. Thonhauser, and I. Souza, Phys. Rev. B 85, 014435 (2012):
Wannier-based calculation of the orbital magnetization in crystals.
[8] J.-P. Hanke, F. Freimuth, A. K. Nandy, H. Zhang, S. Blügel, Y. Mokrousov, arXiv:1603.07683:
The crucial role of the modern theory for describing orbital magnetism:
from magnetic heterostructures to topological orbital ferromagnets.
[9] D. Go, J.-P. Hanke, P. M. Buhl, F. Freimuth, G. Bihlmayer, H.-W. Lee, Y. Mokrousov, and S. Blügel, in preparation:
Surface orbitronics: new twits from orbital Rasha physics.
Aug 9 (Tue): Public Talk (POSTECH Tech. Review)
Speaker: Dongwook Go
Place & Time: 10:30 p.m, AGIT, Hyoja-dong market
Aug 4 (Thu)
Speaker : Suik Cheon
Place & Time : Sci. Bldg 3-201, 4:00pm
V. Simonet, M. Loire, and R. Ballou
Magnetic chirality as probed by neutron scattering
Eur. Phys. J. Special Topics 213, 5–36 (2012)
K. Marty, V. Simonet, E. Ressouche, R. Ballou, P. Lejay, and P. Bordet
Single Domain Magnetic Helicity and Triangular Chirality in Structurally Enantiopure Ba3NbFe3Si2O14
Phy. Rev. Lett. 101, 247201 (2008)
C. Stock, L. C. Chapon, A. Schneidewind, Y. Su, P. G. Radcelli, D. F. McMorrow, A. Bombardi, N. Lee, and S.-W. Cheong
Helical spin waves, magnetic order, and fluctuations in the langasite compound Ba3NbFe3Si2O14
Phy. Rev. B. 83, 104426 (2011)
Jens Jensen
Chiral spin-wave excitations of the spin-5/2 trimers in the langasite compound Ba3NbFe3Si2O14
Phy. Rev. B. 84, 104405 (2011)
July 28 (Thu)
Speaker : SeungJu Shin
Place & Time: Sci. Bldg 3-201, 4:00pm
Yabin Fan, Xufeng Kou, Pramey Upadhyaya, Qiming Shao, Lei Pan, Murong Lang, Xiaoyu Che, Jianshi Tang, Mohammad Montazeri, Koichi Murata, Li-Te Chang, Mustafa Akyol, Guoqiang Yu, Tianxiao Nie, Kin L. Wong, Jun Liu, Yong Wang, Yaroslav Tserkovnyak and Kang L. Wang
Electric-field control of spin-orbit torque in a magnetically doped topological insulator
July 20 (Thu)
Speaker : Sang-Chan Lee
Place & Time: Sci. Bldg 3-331, 3:00pm
Katsuhisa Taguchi, Tatsushi Imaeda, Masatoshi Sato, and Yukio Tanaka
Photovoltaic chiral magnetic effect in Weyl semimetals
Phys. Rev. B 93, 201202(R) – Published 12 May 2016
June 23 (Thu)
Speaker : Kyung-Han Kim
Place & Time: Sci. Bldg 3-115, 4:00 p.m.
Ji Hoon Ryoo and Cheol-Hwan Park
Spin-conserving and reversing photoemission from the surface states of Bi2Se3 and Au (111)
May 19 (Thu)
Speaker : Suik Cheon
Place & Time: Sci. Bldg 3-201, 5:00pm
Ran Cheng, Matthew W. Daniels, Jian-Gang Zhu, and Di Xiao
Ultrafast switching of antiferromagnets via spin-transfer torque
May 12 (Thu)
Speaker : SeungJu Shin
Place & Time: Sci. Bldg 3-201, 5:00pm
Kevin Gareelo, Loan Mihai Miron, Can Onur Avci, Frank Freimuth, Yriy Mokrousov, Stefan Blugel, Stephane Auffret, Olivier Boulle, Gilles Gaudin and Pietro Gambardella
Symmetry and magnitude of spin-orbit torques in ferromagnetic heterostructures
April 7 (Thu)
Speaker : Sang-Chan Lee
Place & Time: Sci. Bldg. 3-201, 5:00 pm
Rundong Li, Jing Wang, Xiao-Liang Qi, and Shou-Cheng Zhang
Dynamical axion field in topological magnetic insulators
March 17 (Thu)
Speaker : Kyung-Han Kim
Place & Time: Sci. Bldg. 3-201, 5:00 p.m.
Xiao-Qin Yu, Zhen-Gang Zhu, Gang Su, and A.-P. Jauho
Thermally Driven Pure Spin and Valley Currents via the Anomalous Nernst Effect in Monolayer Group-VI Dichalcogenides
Phys. Rev. Lett. 115, 246601 (2015)
March 10 (Thu)
Speaker : Suik Cheon
Place & Time: Sci. Bldg 3-201A, 5:00pm
H. Reichlová, D. Kriegner, V. Holý, K. Olejník, V. Novák, M. Yamada, K. Miura, S. Ogawa, H. Takahashi, T. Jungwirth, and J. Wunderlich
Current-induced torques in structures with ultrathin IrMn antiferromagnets
February 18 (Thu)
Speaker : SeungJu Shin
Place & Time: Sci. Bldg 3-201, 4:00pm
R. Chisnell, J. S. Helton, ..., D. G. Nocera, and Y. S. Lee
Topological Magnon Bands in a Kagome Lattice Ferromagnet
Physical Review Letters 115, 147201 (2015)
February 12 (Fri)
Speaker : Dongwook Go
Place & Time: Sci. Bldg. 3-317A, 2:00 PM
Proposal rehearsal (Global PhD Fellowship)
February 4 (Thu) - 5 (Fri) - BK21Plus Young Physicists Workshop
January 21 (Thu)
Speaker : Dongwook Go
Place & Time: Sci. Bldg. 3-201, 2:00 PM
Colloquium:
Exploring atomic orbitals in condensed matter - a unified picture on spin-orbit driven physics
January 14 (Thu)
Speaker : Sang-Chan Lee
Place & Time: Sci. Bldg. 3-317A, 4:00pm
S. M. Young and C. L. Kane
Dirac semimetals in two dimensions