Ultrafast magnetic switching of GdFeCo with electronic heat currents

被引：46
|
作者：
Wilson, R. B. [1 ,2 ]
Gorchon, Jon [3 ,4 ]
Yang, Yang [5 ]
Lambert, Charles-Henri [3 ]
Salahuddin, Sayeef [3 ,4 ]
Bokor, Jeffrey [3 ,4 ]
机构：
[1] Univ Calif Riverside, Dept Mech Engn, Riverside, CA 92521 USA
[2] Univ Calif Riverside, Mat Sci & Engn Program, Riverside, CA 92521 USA
[3] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA
[4] Lawrence Berkeley Natl Lab, 1 Cyclotron Rd, Berkeley, CA 94720 USA
[5] Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA
来源：
PHYSICAL REVIEW B | 2017年 / 95卷 / 18期
基金：
美国国家科学基金会;
关键词：
SPIN CURRENT; DEMAGNETIZATION; EXCITATION; REVERSAL; DRIVEN; FILMS;
D O I：
10.1103/PhysRevB.95.180409
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report the magnetic response of Pt/Au/GdFeCo trilayers to optical irradiation of the Pt surface. For trilayers with Au thickness greater than 50 nm, the great majority of energy is absorbed by the Pt layer, creating an initial temperature differential of thousands of kelvin between the Pt/Au layers and the GdFeCo layer. The resulting electronic heat current across the metal multilayer lasts for several picoseconds with energy flux in excess of 2 TWm(-2) and provides sufficient heating to the GdFeCo electrons to induce deterministic reversal of the magnetic moment.
引用
收藏
页数：5
相关论文
共 50 条
  • [21] Ultrafast magnetic switching and nonlinear optics in NiO(100)
    Lefkidis, G
    Ney, O
    Pavlyukh, Y
    Satitkovitchai, K
    Hübner, W
    MAGNETOELECTRIC INTERACTION PHENOMENA IN CRYSTALS, 2004, 164 : 193 - 202
  • [22] Ultrafast thermally induced magnetic switching in synthetic ferrimagnets
    Evans, Richard F. L.
    Ostler, Thomas A.
    Chantrell, Roy W.
    Radu, Ilie
    Rasing, Theo
    APPLIED PHYSICS LETTERS, 2014, 104 (08)
  • [23] Investigate the doped magnetic garnets and their applications to ultrafast switching
    Kang, Shaoying
    Yin, Shizhuo
    Zhu, Yong
    Li, Qi
    Adyam, Venimadhav
    PHOTOREFRACTIVE FIBER AND CRYSTAL DEVICES: MATERIALS, OPTICAL PROPERTIES, AND APPLICATIONS XII, 2006, 6314
  • [24] Ultrafast switching of magnetic nanoelements using a rotating field
    Fidler, J
    Schrefl, T
    Tsiantos, VD
    Scholz, W
    Suess, D
    Forster, H
    JOURNAL OF APPLIED PHYSICS, 2002, 91 (10) : 7974 - 7976
  • [25] Ultrafast Switching to a Stable Hidden Quantum State in an Electronic Crystal
    Stojchevska, L.
    Vaskivskyi, I.
    Mertelj, T.
    Kusar, P.
    Svetin, D.
    Brazovskii, S.
    Mihailovic, D.
    SCIENCE, 2014, 344 (6180) : 177 - 180
  • [26] Ultrafast Magnetic Memory Bits Using All-Optical Magnetic Switching
    El-Ghazaly, Amal
    O'Mahoney, Daisy
    Lambert, Charles-Henri
    Gorchon, Jon
    Brown, P. Nigel
    Pattabi, Akshay
    Wong, H. S. Philip
    Bokor, Jeffrey
    2017 FIFTH BERKELEY SYMPOSIUM ON ENERGY EFFICIENT ELECTRONIC SYSTEMS & STEEP TRANSISTORS WORKSHOP (E3S), 2017,
  • [27] Precessional strategies for the ultrafast switching of soft and hard magnetic nanostructures
    Devolder, T
    Belmeguenai, M
    Schumacher, HW
    Chappert, C
    Suzuki, Y
    MAGNETOELECTRONICS AND MAGNETIC MATERIALS-NOVEL PHENOMENA AND ADVANCED CHARACTERIZATION, 2003, 746 : 189 - 200
  • [28] Analysis of Transient Currents During Ultrafast Switching of TiO2 Nanocrossbar Devices
    Hermes, C.
    Wimmer, M.
    Menzel, S.
    Fleck, K.
    Bruns, G.
    Salinga, M.
    Boettger, U.
    Bruchhaus, R.
    Schmitz-Kempen, T.
    Wuttig, M.
    Waser, R.
    IEEE ELECTRON DEVICE LETTERS, 2011, 32 (08) : 1116 - 1118
  • [29] Heat currents in electronic junctions driven by telegraph noise
    Entin-Wohlman, O.
    Chowdhury, D.
    Aharony, A.
    Dattagupta, S.
    PHYSICAL REVIEW B, 2017, 96 (19)
  • [30] Measurements of magnetic damping in GdFeCo thin films
    Tsukamoto, A., The Magnetics Society of Japan; The Magnetics Society of the IEEE (IEEE Computer Society):
12345