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Tunneling Planar Hall Effect in Topological Insulators: Spin Valves and Amplifiers

Journal Article · · Physical Review Letters
 [1];  [2];  [2];  [3];  [2]
  1. Univ. at Buffalo, NY (United States). Dept. of Physics; DOE/OSTI
  2. Univ. at Buffalo, NY (United States). Dept. of Physics
  3. Univ. of Würzburg (Germany). Inst. for Theoretical Physics and Astrophysics

We investigate tunneling across a single ferromagnetic barrier on the surface of a three-dimensional topological insulator. In the presence of a magnetization component along the bias direction, a tunneling planar Hall conductance (TPHC), transverse to the applied bias, develops. Electrostatic control of the barrier enables a giant Hall angle, with the TPHC exceeding the longitudinal tunneling conductance. By changing the in-plane magnetization direction, it is possible to change the sign of both the longitudinal and transverse differential conductance without opening a gap in the topological surface state. The transport in a topological-insulator–ferromagnet junction can, thus, be drastically altered from a simple spin valve to an amplifier.

Research Organization:
Univ. at Buffalo, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0004890
OSTI ID:
1536437
Alternate ID(s):
OSTI ID: 1328959
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 117; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (80)

Spin Current book August 2015
Gate-Tunable Transport Properties of In Situ Capped Bi 2 Te 3 Topological Insulator Thin Films journal June 2016
Hall Effect Devices journal May 1959
Topological Insulators: Dirac Equation in Condensed Matters book January 2013
Hall Effect Devices journal October 2004
Topological insulator based spin valve devices: Evidence for spin polarized transport of spin-momentum-locked topological surface states journal August 2014
Independent Tuning of Electronic Properties and Induced Ferromagnetism in Topological Insulators with Heterostructure Approach journal August 2015
Magnetic Proximity Effect as a Pathway to Spintronic Applications of Topological Insulators journal October 2011
Electrical Detection of the Spin Polarization Due to Charge Flow in the Surface State of the Topological Insulator Bi 1.5 Sb 0.5 Te 1.7 Se 1.3 journal October 2014
Spin-transfer torque generated by a topological insulator journal July 2014
A high-temperature ferromagnetic topological insulating phase by proximity coupling journal May 2016
Sn-doped Bi1.1Sb0.9Te2S bulk crystal topological insulator with excellent properties journal April 2016
Enhanced spin Seebeck effect signal due to spin-momentum locked topological surface states journal May 2016
Tunable Dirac cone in the topological insulator Bi2-xSbxTe3-ySey journal January 2012
Resonant tunnelling and negative differential conductance in graphene transistors journal April 2013
Giant anisotropic magnetoresistance in a quantum anomalous Hall insulator journal July 2015
Magnetization switching through giant spin–orbit torque in a magnetically doped topological insulator heterostructure journal April 2014
Control over topological insulator photocurrents with light polarization journal December 2011
Electrical detection of charge-current-induced spin polarization due to spin-momentum locking in Bi2Se3 journal February 2014
Topological insulators in Bi2Se3, Bi2Te3 and Sb2Te3 with a single Dirac cone on the surface journal May 2009
Surface conduction of topological Dirac electrons in bulk insulating Bi2Se3 journal April 2012
Chiral tunnelling and the Klein paradox in graphene journal August 2006
Electrical injection and detection of spin-polarized currents in topological insulator Bi2Te2Se journal September 2015
Tunneling in a finite superlattice journal June 1973
Anomalous and spin Hall effects in a magnetic tunnel junction with Rashba spin-orbit coupling journal July 2013
Transverse currents and contact resistances in the quantum Hall regime of Si-MOS structures journal November 1990
Semiclassical theories of the anomalous Hall effect journal December 2007
Comment on “Three-dimensional kicked hydrogen atom” journal July 2003
Spin-polarized transport and Andreev reflection in semiconductor/superconductor hybrid structures journal December 1999
Tunneling spectroscopy for ferromagnet/superconductor junctions journal January 2000
Electron tunneling through double magnetic barriers on the surface of a topological insulator journal September 2010
Anomalous Hall response of topological insulators journal June 2011
Magnetic proximity effect at the three-dimensional topological insulator/magnetic insulator interface journal October 2013
Controlling electron propagation on a topological insulator surface via proximity interactions journal January 2014
Magnetic proximity effect and spin-orbital texture at the Bi 2 Se 3 / EuS interface journal October 2014
Spin-polarized tunneling study of spin-momentum locking in topological insulators journal June 2015
Giant forward-scattering asymmetry and anomalous tunnel Hall effect at spin-orbit-split and exchange-split interfaces journal August 2015
Nonequilibrium spin texture within a thin layer below the surface of current-carrying topological insulator Bi 2 Se 3 : A first-principles quantum transport study journal November 2015
Metal-insulator transition and tunable Dirac-cone surface state in the topological insulator TlBi 1 − x Sb x Te 2 studied by angle-resolved photoemission journal April 2016
Effective gating and tunable magnetic proximity effects in two-dimensional heterostructures journal June 2016
Switching of charge-current-induced spin polarization in the topological insulator BiSbTeSe 2 journal August 2016
Tuning the Conductance of Dirac Fermions on the Surface of a Topological Insulator journal January 2010
Origin of the Planar Hall Effect in Nanocrystalline Co 60 Fe 20 B 20 journal August 2011
Terahertz Response and Colossal Kerr Rotation from the Surface States of the Topological Insulator Bi 2 Se 3 journal February 2012
Spontaneous Anomalous and Spin Hall Effects Due to Spin-Orbit Scattering of Evanescent Wave Functions in Magnetic Tunnel Junctions journal June 2013
Fingerprints of Inelastic Transport at the Surface of the Topological Insulator Bi 2 Se 3 : Role of Electron-Phonon Coupling journal February 2014
Tunneling Anomalous and Spin Hall Effects journal July 2015
Giant Planar Hall Effect in Epitaxial (Ga,Mn)As Devices journal March 2003
In-Plane Electric Current Is Induced by Tunneling of Spin-Polarized Carriers journal July 2004
Tunneling Conductance of Graphene NIS Junctions journal November 2006
Dirac Fermions and Conductance Oscillations in s - and d -Wave Superconductor-Graphene Junctions journal October 2007
Dirac-Screening Stabilized Surface-State Transport in a Topological Insulator journal December 2014
Spintronics: Fundamentals and applications journal April 2004
Anomalous Hall effect journal May 2010
Colloquium: Topological insulators journal November 2010
Topological insulators and superconductors journal October 2011
Massive Dirac Fermion on the Surface of a Magnetically Doped Topological Insulator journal August 2010
Spin Hall Effect Transistor journal December 2010
Spin-related tunneling through a nanostructured electric-magnetic barrier on the surface of a topological insulator journal January 2012
Semiconductor spintronics journal August 2007
Semiconductor Spintronics text January 2007
Semiclassical theories of the anomalous Hall effect text January 2007
Spin Hall effect transistor text January 2010
Magnetic Proximity Effect as a Pathway to Spintronic Applications of Topological Insulators text January 2011
Resonant tunnelling and negative differential conductance in graphene transistors text January 2013
Anomalous and Spin Hall Effects in a Magnetic Tunnel Junction with Rashba Spin-Orbit Coupling preprint January 2013
Controlling electron propagation on a topological insulator surface via proximity interactions text January 2013
Topological insulator based spin valve devices: evidence for spin polarized transport of spin-momentum-locked topological surface states text January 2014
Dirac-screening stabilized surface-state transport in a topological insulator preprint January 2014
Spin-Polarized Tunneling Study on Spin-Momentum Locking in the Topological Insulators text January 2014
Electrical detection of the spin polarization due to charge flow in the surface state of the topological insulator Bi_1.5 Sb_0.5 Te_1.7 Se_1.3 text January 2014
Electrical injection and detection of spin-polarized currents in topological insulator Bi2Te2Se text January 2015
Giant Anisotropic Magnetoresistance in a Quantum Anomalous Hall Insulator text January 2015
Independent tuning of electronic properties and induced ferromagnetism in topological insulators with heterostructure approach text January 2015
Giant Forward Scattering Asymmetry and Anomalous Tunnel Hall effect at Spin-Orbit-and Exchange-Split Interfaces text January 2015
Enhanced spin Seebeck effect signal due to spin-momentum locked topological surface states text January 2016
Chiral tunneling and the Klein paradox in graphene text January 2006
Tunneling spectroscopy for ferromagnet/superconductor junctions text January 1999
Spintronics: fundamentals and applications text January 2004
Tunneling anomalous and spin Hall effects text January 2015

Cited By (5)

Planar Josephson Hall effect in topological Josephson junctions journal February 2021
A conductive topological insulator with large spin Hall effect for ultralow power spin–orbit torque switching journal July 2018
Anisotropic magnetotransport in Dirac-Weyl magnetic junctions journal February 2017
Chiral Spin Mode on the Surface of a Topological Insulator journal September 2017
Chiral Spin Mode on the Surface of a Topological Insulator text January 2017

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