Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Nonvolatile voltage controlled molecular spin state switching

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.5054909· OSTI ID:1524643
 [1];  [2];  [1];  [1];  [3];  [3];  [4];  [4];  [5];  [2];  [1];  [1]
  1. Univ. of Nebraska, Lincoln, NE (United States)
  2. Indiana Univ. Purdue Univ.-Indianapolis, Indianapolis, IN (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  4. Univ. of Nebraska–Lincoln, Lincoln, NE (United States)
  5. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
+ Show Author Affiliations
Voltage-controlled room temperature isothermal reversible spin crossover switching of [Fe{H2B(pz)2}2(bipy)] thin films is demonstrated. This isothermal switching is evident in thin film bilayer structures where the molecular spin crossover film is adjacent to a molecular ferroelectric. The adjacent molecular ferroelectric, either polyvinylidene fluoride hexafluoropropylene or croconic acid (C5H2O5), appears to lock the spin crossover [Fe{H2B(pz)2}2(bipy)] molecular complex largely in the low or high spin state depending on the direction of ferroelectric polarization. In both a planar two terminal diode structure and a transistor structure, the voltage controlled isothermal reversible spin crossover switching of [Fe{H2B(pz)2}2(bipy)] is accompanied by a resistance change and is seen to be nonvolatile, i.e., retained in the absence of an applied electric field. Here, the result appears general, as the voltage controlled nonvolatile switching can be made to work with two different molecular ferroelectrics: croconic acid and polyvinylidene fluoride hexafluoropropylene.
Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Laboratory Directed Research and Development (LDRD) Program; USDOE National Nuclear Security Administration (NNSA); USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231; AC04-94AL85000; NA0003525
OSTI ID:
1524643
Alternate ID(s):
OSTI ID: 1635171
Report Number(s):
SAND--2019-5955J; 675880
Journal Information:
Applied Physics Letters, Journal Name: Applied Physics Letters Journal Issue: 3 Vol. 114; ISSN 0003-6951
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English

References (31)

Room-Temperature Electrical Addressing of a Bistable Spin-Crossover Molecular System journal February 2011
Nano-electromanipulation of Spin Crossover Nanorods: Towards Switchable Nanoelectronic Devices journal January 2013
Locking and Unlocking the Molecular Spin Crossover Transition journal August 2017
Electron-Induced Spin Crossover of Single Molecules in a Bilayer on Gold journal May 2012
Iron(II) Spin-Crossover Complexes in Ultrathin Films: Electronic Structure and Spin-State Switching by Visible and Vacuum-UV Light journal February 2014
Complexities in the Molecular Spin Crossover Transition journal June 2015
Spin Crossover in Novel Dihydrobis(1-pyrazolyl)borate [H 2 B(pz) 2 ]-Containing Iron(II) Complexes. Synthesis, X-ray Structure, and Magnetic Properties of [FeL{H 2 B(pz) 2 } 2 ] (L = 1,10-Phenanthroline and 2,2‘-Bipyridine) journal July 1997
Structural, Magnetic, and Photomagnetic Studies of a Mononuclear Iron(II) Derivative Exhibiting an Exceptionally Abrupt Spin Transition. Light-Induced Thermal Hysteresis Phenomenon journal August 1998
Reversible Switching of a Cobalt Complex by Thermal, Pressure, and Electrochemical Stimuli: Abrupt, Complete, Hysteretic Spin Crossover journal November 2011
Coherent Transport through Spin-Crossover Single Molecules journal December 2011
Electric-Field-Induced Charge-Transfer Phase Transition: A Promising Approach Toward Electrically Switchable Devices journal October 2009
Thermal and Optical Switching of Molecular Spin States in the {[FeL[H 2 B(pz) 2 ] 2 } Spin-Crossover System (L = bpy, phen) † journal April 2002
Electronic Structure of a Spin Crossover Molecular Adsorbate journal October 2012
Temperature- and Light-Induced Spin Crossover Observed by X-ray Spectroscopy on Isolated Fe(II) Complexes on Gold journal April 2013
Modification of Molecular Spin Crossover in Ultrathin Films journal March 2013
Robust spin crossover and memristance across a single molecule journal January 2012
The molecular way journal April 2017
Spin state dependence of electrical conductivity of spin crossover materials journal January 2012
Charge transport properties of spin crossover systems journal January 2014
Self-oriented β-crystalline phase in the polyvinylidene fluoride ferroelectric and piezo-sensitive ultrathin Langmuir–Schaefer film journal January 2015
Indications of magnetic coupling effects in spin cross-over molecular thin films journal January 2018
Spin crossover materials evaporated under clean high vacuum and ultra-high vacuum conditions: from thin films to single molecules journal January 2012
Iron(ii) spin crossover films on Au(111): scanning probe microscopy and photoelectron spectroscopy journal January 2013
The spin state of a molecular adsorbate driven by the ferroelectric substrate polarization journal January 2014
Nanoscale polarization manipulation and conductance switching in ultrathin films of a ferroelectric copolymer journal June 2003
Performance Characteristics of Beamline 6.3.1 from 200 eV to 2000 eV at the Advanced Light Source
  • Nachimuthu, P.
  • SYNCHROTRON RADIATION INSTRUMENTATION: Eighth International Conference on Synchrotron Radiation Instrumentation, AIP Conference Proceedings https://doi.org/10.1063/1.1757832
conference January 2004
Electrical properties and non-volatile memory effect of the [Fe(HB(pz) 3 ) 2 ] spin crossover complex integrated in a microelectrode device journal August 2011
Room temperature ferroelectricity in continuous croconic acid thin films journal September 2016
Spin crossover in Fe(phen) 2 (NCS) 2 complexes on metallic surfaces journal March 2017
Controlling the magnetism of adsorbed metal–organic molecules journal November 2016
Spin state of spin-crossover complexes: From single molecules to ultrathin films journal May 2014

Cited By (3)

Magnetic Field Perturbations to a Soft X-ray-Activated Fe (II) Molecular Spin State Transition journal October 2021
Calculating spin crossover temperatures by a first-principles LDA+ U scheme with parameter U evaluated from GW journal October 2019
Tunable spin-state bistability in a spin crossover molecular complex journal May 2019

Similar Records

Nonvolatile Voltage Controlled Molecular Spin-State Switching for Memory Applications
Journal Article · Wed Mar 10 19:00:00 EST 2021 · Magnetochemistry · OSTI ID:1770605

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ferroelectric materials
interfaces
multiferroics
multilayers
organic semiconductors
polymers
spintronic devices
thin films
x-ray absorption spectroscopy