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Title: Electric Field-Controlled Magnetization in GaAs/AlGaAs Heterostructures–Chiral Organic Molecules Hybrids

Journal Article · · Journal of Physical Chemistry Letters

Here, we study GaAs/AlGaAs devices hostinga two-dimensional electron gas and coated with a monolayer of chiral organic molecules.We observe clear signatures of room temperature magnetism, which is induced in these systems by applying a gate voltage. We explain this phenomenon as a consequence of the spin-polarized charges that are injectedinto the semiconductor through the chiral molecules. The orientation of the magnetic moment can be manipulated by low gate voltages, with a switching ratein the MHz range. Therefore, our devices implement an efficient, electric field controlled magnetization, which has long been desired for their technical prospects.

Research Organization:
Univ. of Pittsburgh, PA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division; Israel Science Foundation
Grant/Contract Number:
FG02-07ER46430; 1889/16
OSTI ID:
1604757
Journal Information:
Journal of Physical Chemistry Letters, Vol. 10, Issue 5; ISSN 1948-7185
Publisher:
American Chemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 24 works
Citation information provided by
Web of Science

References (53)

Giant Magnetoresistance of (001)Fe/(001)Cr Magnetic Superlattices journal November 1988
Enhanced magnetoresistance in layered magnetic structures with antiferromagnetic interlayer exchange journal March 1989
Magnetoelectronics journal November 1998
Spintronics: Fundamentals and applications journal April 2004
Spin transfer torques journal April 2008
Spin electronics a review journal September 2002
Magnetic Proximity Effect as a Pathway to Spintronic Applications of Topological Insulators journal October 2011
Magnetoelectric Coupling Effects in Multiferroic Complex Oxide Composite Structures journal April 2010
Perspectives of voltage control for magnetic exchange bias in multiferroic heterostructures journal April 2017
Magnetic Proximity Effect journal November 1969
Single Nanoparticle Magnetic Spin Memristor journal June 2018
Chiral-Induced Spin Selectivity Effect journal July 2012
Helix-Dependent Spin Filtering through the DNA Duplex journal November 2016
Chiral Selective Chemistry Induced by Natural Selection of Spin-Polarized Electrons journal May 2015
Analyzing Spin Selectivity in DNA-Mediated Charge Transfer via Fluorescence Microscopy journal July 2017
Spin Specific Electron Conduction through DNA Oligomers journal November 2011
A Silicon‐Based Room Temperature Spin Source without Magnetic Layers journal August 2016
Spin Filtering in Electron Transport Through Chiral Oligopeptides journal January 2015
A chiral-based magnetic memory device without a permanent magnet journal August 2013
Non-magnetic organic/inorganic spin injector at room temperature journal December 2014
Magnetic Nanoplatelet-Based Spin Memory Device Operating at Ambient Temperatures journal March 2017
Magnetization switching in ferromagnets by adsorbed chiral molecules without current or external magnetic field journal February 2017
Magnetic phase control by an electric field journal July 2004
Control of magnetism by electric fields journal March 2015
A new spin on magnetic memories journal March 2015
Spintronics and Chirality: Spin Selectivity in Electron Transport Through Chiral Molecules journal April 2015
A new approach towards spintronics–spintronics with no magnets journal February 2017
Lateral drag of spin coherence in gallium arsenide journal January 1999
Long electron spin memory times in gallium arsenide journal August 2001
Manipulation of the Spin Memory of Electrons in n -GaAs journal June 2002
Molecular enhancement of ferromagnetism in GaAs∕GaMnAs heterostructures journal September 2006
Anomalous Hall effect journal May 2010
Crossover Behavior of the Anomalous Hall Effect and Anomalous Nernst Effect in Itinerant Ferromagnets journal August 2007
Spin-dependent phenomena and device concepts explored in (Ga,Mn)As journal July 2014
Room temperature spin diffusion in (110) GaAs/AlGaAs quantum wells journal January 2011
Long-range and high-speed electronic spin-transport at a GaAs/AlGaAs semiconductor interface journal March 2016
Optical investigation of electrical spin injection into an inverted two-dimensional electron gas structure journal January 2017
Free carrier-induced ferromagnetism in structures of diluted magnetic semiconductors journal February 1997
Indirect Exchange Coupling of Nuclear Magnetic Moments by Conduction Electrons journal October 1954
A Theory of Metallic Ferro- and Antiferromagnetism on Zener's Model journal July 1956
Magnetic Properties of Cu-Mn Alloys journal June 1957
Ferromagnetic semiconductors: moving beyond (Ga,Mn)As journal March 2005
A ten-year perspective on dilute magnetic semiconductors and oxides journal November 2010
Emergent nanoscale superparamagnetism at oxide interfaces journal August 2016
High temperature ferromagnetism in π-conjugated two-dimensional metal–organic frameworks journal January 2017
Theory of helical magnetic structures and phase transitions in MnSi and FeGe journal November 1980
Metallic quantum ferromagnets journal May 2016
Quantum spin liquids: a review journal November 2016
Unusual Hall Effect Anomaly in MnSi under Pressure journal May 2009
Skyrmion Lattice in a Chiral Magnet journal February 2009
Real-space observation of a two-dimensional skyrmion crystal journal June 2010
Near room-temperature formation of a skyrmion crystal in thin-films of the helimagnet FeGe journal December 2010
Nucleation, stability and current-induced motion of isolated magnetic skyrmions in nanostructures journal October 2013

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Chiral molecules-ferromagnetic interfaces, an approach towards spin controlled interactions journal September 2019

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