Journal Club Presentations in 2017

2017

Dec 28 (Thu)

• • Speaker : Suik Cheon

• Place & Time: Sci. Bldg 3-201, 4:00pm

  • Alireza Qaiumzadeh, Ivan A. Ado, Rembert A. Duine, Mikhail Titov, and Arne Brataas

  • Theory of Interfacial Dzyaloshinskii-Moriya Interaction in Antiferromagnetic / Heavy-Metal Bilayers

  • arXiv:1709.09205v1 (2017)

Nov 23 (Thu)

• • Speaker : SeungJu Shin

• Place & Time: Sci. Bldg 3-201, 4:00pm

• K. Yasuda, A. Tsukazaki, R. Yoshimi, K. Kondou, K. S. Takahashi, Y. Otani, M. Kawasaki and Y. Tokura

• Current-Nonlinear Hall Effect and Spin-Orbit Torque Magnetization Switching in a Magnetic Topological Insulator

• Phys. Rev. Lett. 119, 137204 (2017)

Nov 9 (Thu)

• Speaker : Sang-Chan Lee

• Place & Time: Sci. Bldg 5F(Meeting Place), 4:00pm

• Interface-driven spin-torque ferromagnetic resonance by Rashba coupling at the interface between nonmagnetic materials

• M. B. Jungfleisch, W. Zhang, J. Sklenar, W. Jiang, J. E. Pearson, J. B. Ketterson, and A. Hoffmann

• Phys. Rev. B 93, 224419 – Published 20 June 2016

Nov 2 (Thu)

• Speaker : Jeonghun Sohn

• Place & Time: Sci. Bldg 3-201, 4:00pm

  • Title: Universal Rashba type spin texture in surface state(연구 발표)

Oct 19 (Thu)

• • Speaker : Mijin Lim

• Place & Time: Sci. Bldg 3-201, 4:00pm

• Title: Spin transport at HM(Heavy metal)/FM(Ferromagnet) interface 

Oct 12 (Thu)

• • Speaker : Kyung-Han Kim

• Place & Time: Sci. Bldg 3-201, 4:00 p.m.

• Q. Shao et al.

• Strong Rashba-Edelstein Effect-Induced Spin-Orbit Torques in Monolayer Transition Metal Dichalcogenide/Ferromagnet Bilayers

• Nano Lett. 16, 7514 (2016)

Sept 28 (Thu)

• • Speaker : Dongwook Go

• Place & Time: Sci. Bldg 3-201, 4:00 p.m.

           Orbital Physics in Spin Transport Phenomena: Prospects and Challenges

           Part 3: Relaxation of the orbital moment

Sept 14 (Thu)

• • Speaker : Dongwook Go

• Place & Time: Sci. Bldg 3-201, 4:00 p.m.

           Orbital Physics in Spin Transport Phenomena: Prospects and Challenges

           Part 2: Electrical generation of the orbital moment - orbital Hall and orbital Rashba effects

Sept 7 (Thu)

• • Speaker : Dongwook Go

• Place & Time: Sci. Bldg 3-201, 4:00 p.m.

           Orbital Physics in Spin Transport Phenomena: Prospects and Challenges

           Part 1: Definition of the orbital moment, modern theory, and orbital quenching

Aug 10 (Thu)

• • Speaker : Suik Cheon

• Place & Time: Sci. Bldg 3-201, 4:00pm

  •  

  • Jing Wang

  • Antiferromagnetic Dirac semimetals in two dimensions

  • Phys. Rev. B 95, 115138 (2017)

  • Steve M. Young & Benjamin J. Wieder

  • Filling-Enforced Magnetic Dirac Semimetals in Two Dimensions

  • Phys. Rev. Lett. 118, 186401 (2017)

Aug 3 (Thu)

• • Speaker : SeungJu Shin

• Place & Time: Sci. Bldg 3-201, 4:00pm

• Keita Hamamoto, Motohiko Ezawa, Kun Woo Kim, Takahiro Morimoto, Naoto Nagaosa

• Nonlinear spin current generation in noncentrosymmetric spin-orbit coupled systems

• Physical Review B 95, 224430 (2017)

July 13 (Thu)

• Speaker : Sang-Chan Lee

• Place & Time: Sci. Bldg 3-201, 4:00 PM

        Dazhi Hou, Zhiyong Qiu, R. Iguchi, K. Sato, E. K. Vehstedt, K. Uchida, G. E. W. Bauer & E. Saitoh

        Observation of temperature-gradient-induced magnetization 

        Nature Communications 7, Article number: 12265 (2016)

June 30 (Fri)

• Speaker : Jeonghun Sohn

• Place & Time: Sci. Bldg 3-201, 10:30 AM

         X. Zhang, Q. Liu, J-W. Luo, A. J. Freeman and A. Zunger

         Hidden spin polarization in inversion-symmetric bulk crystals

Nature Physics 10, 387–393 (2014)

June 8 (Thu)

• • Speaker : Mijin Lim

• Place & Time: Sci. Bldg 3-201, 3:30pm

  • K. D. Belashchenko, Alexey A. Kovalev, and M. van Schilfgaarde

  • Theory of Spin Loss at Metallic Interfaces

  • Phys. Rev. Lett. 117, 207204 (2016)

Apr 13 (Thu)

• • Speaker : Kyung-Han Kim

• Place & Time: Sci. Bldg 3-317A, 4:00 p.m.

• A. Hamo, A. Benyamini, I. Shapir, I. Khivrich, J. Waissman, K. Kaasbjerg, Y. Oreg, F. von Oppen and S. Ilani

• Electron attraction mediated by Coulomb repulsion

• Nature 535, 395-400 (2016)

Mar 30 (Thu)

• • Speaker : Suik Cheon

• Place & Time: Sci. Bldg 3-201, 4:00pm

            Yuta Yamane, Jun'ichi Ieda, and Jairo Sinova

            Spin-transfer torques in antiferromagnetic textures: Efficiency and quantification method

            Phys. Rev. B. 94, 054409 (2016)

Mar 16 (Thu)

• • Speaker : Dongwook Go

• Place & Time: Sci. Bldg 3-201, 4:00pm

            Toward surface orbitronics: the orbital Rashba effect in sp metals

            * Rehearsal talk for a DPG Spring Meeting 2017 Dresden

Mar 9 (Thu)

• • Speaker : SeungJu Shin

• Place & Time: Sci. Bldg 3-201, 4:00pm

• Title : four band model study for the TI/FM bilayer system.

March 2(Tue)

• Speaker : Junghun Son

• Place & Time : Sci. Bldg 3-201, 4:00pm

• Title : Spin-orbital physics in surface state

L. Bawden et al, Hierarchical spin-orbital polarization of a giant Rashba system. Sci. Adv. 1, e1500495 (2015).

Y. Cao et al, Mapping the orbital wavefunction of the surface states in three-dimensional topological insulators, Nature Physics 9, 499–504 (2013)

C. Jozwiak et al, Photoelectron spin-flipping and texture manipulation in a topological insulator, Nature Physics 9, 293-298(2013)

Feb 23 (Tue)

• • Speaker : Kyung-Han Kim

• Place & Time: Sci. Bldg 3-201, 4:00 p.m.

• Origin of the spin/valley Hall effect in two dimensional MoS2

Jan 19 (Thu)

• • Speaker : Mijin Lim

• Place & Time: Sci. Bldg 3-317A, 4:00pm

• Minh-Hai Nguyen, D. C. Ralph, and R. A. Buhrman

• Spin Torque Study of the Spin Hall Conductivity and Spin Diffusion Length in Platinum Thin Films with Varying Resistivity 

• Phys. Rev. Lett. 116, 126601 (2016)

Jan 3 (Tue)

• • Speaker : Kyung-Han Kim

• Place & Time: Sci. Bldg 3-201, 3:00 p.m.

• M. A. Cazalilla, H. Ochoa, and F. Guinea

• Quantum Spin Hall Effect in Two-Dimensional Crystals of Transition-Metal Dichalcogenides

• Phys. Rev. Lett. 113, 077201 (2014)

• X. Qian, J. Liu, L. Fu, and J. Li

• Quantum spin Hall effect in two-dimensional transition metal dichalcogenides

• Science 346, 6215 (2014)