skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Multimodal Responses of Self-Organized Circuitry in Electronically Phase Separated Materials

Abstract

When confining an electronically phase we separated manganite film to the scale of its coexisting self-organized metallic and these insulating domains allows resistor-capacitor circuit-like responses while providing both electroresistive and magnetoresistive switching functionality.

Authors:
 [1];  [2];  [3];  [1];  [4];  [1]
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
  2. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy
  3. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division; Univ. of Tennessee, Knoxville, TN (United States). Materials Science and Engineering
  4. Univ. of Tennessee, Knoxville, TN (United States). Materials Science and Engineering and Center for Nanophase Materials Science
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Center for Nanophase Materials Sciences (CNMS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1319183
Grant/Contract Number:
AC05-00OR22725; SC0002136
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
Advanced Electronic Materials
Additional Journal Information:
Journal Name: Advanced Electronic Materials; Journal ID: ISSN 2199-160X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Herklotz, Andreas, Guo, Hangwen, Wong, Anthony T., Lee, Ho Nyung, Rack, Philip D., and Ward, Thomas Z.. Multimodal Responses of Self-Organized Circuitry in Electronically Phase Separated Materials. United States: N. p., 2016. Web. doi:10.1002/aelm.201600189.
Herklotz, Andreas, Guo, Hangwen, Wong, Anthony T., Lee, Ho Nyung, Rack, Philip D., & Ward, Thomas Z.. Multimodal Responses of Self-Organized Circuitry in Electronically Phase Separated Materials. United States. doi:10.1002/aelm.201600189.
Herklotz, Andreas, Guo, Hangwen, Wong, Anthony T., Lee, Ho Nyung, Rack, Philip D., and Ward, Thomas Z.. 2016. "Multimodal Responses of Self-Organized Circuitry in Electronically Phase Separated Materials". United States. doi:10.1002/aelm.201600189. https://www.osti.gov/servlets/purl/1319183.
@article{osti_1319183,
title = {Multimodal Responses of Self-Organized Circuitry in Electronically Phase Separated Materials},
author = {Herklotz, Andreas and Guo, Hangwen and Wong, Anthony T. and Lee, Ho Nyung and Rack, Philip D. and Ward, Thomas Z.},
abstractNote = {When confining an electronically phase we separated manganite film to the scale of its coexisting self-organized metallic and these insulating domains allows resistor-capacitor circuit-like responses while providing both electroresistive and magnetoresistive switching functionality.},
doi = {10.1002/aelm.201600189},
journal = {Advanced Electronic Materials},
number = ,
volume = ,
place = {United States},
year = 2016,
month = 7
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record

Save / Share:
  • Colossal in-plane anisotropic magnetoresistance (AMR) of >16 000% has been engineered in spatially confined La{sub 0.3}Pr{sub 0.4}Ca{sub 0.3}MnO{sub 3} films. Recalling that typical AMR values in films are only a few percent, these results mark an astonishing increase that might potentially lead to fabrication of manganite-based switching and sensor devices. The unique colossal behavior is discussed within the context of anisotropic domain growth.
  • We present the results of a study of the interactions between three different acid-terminated self-assembled monolayer(SAM) surfaces and three basic vapor-phase probe molecules. The SAMs are composed of 4-mercaptobenzoic acid (MBA), 3-mercaptopropionic acid(MPA), and 11-mercaptoundecanoic acid (MUA), and the vapor-phase probes are, in order of increasing solution-phase acidity, decylamine, pyridine, and pyrazine. Our results are based on data from surface infrared spectroscopy and thickness-shear mode mass sensors. We find that all three SAMs irreversibly bind approximately one monolayer of decylamine, although there are slight differences that correlate with the structural nuances of the SAMs. The MPA and MBA SAMs bindmore » decylamine through an electrostatic interaction brought about by transfer of a proton from the acid to the base. Because the MUA SAM is more impenetrable than the others, complete proton transfer is hindered, and binding of decylamine arises through a combination of proton transfer and strong hydrogen bonding. In the presence of its vapor, pyridine adsorbs to MBA surfaces at near-monolayrer coverage, but upon N{sub 2} purging about two-thirds of it desorbs. Only one-half monolayer of pyrazine, which is less basic than pyridine, adsorbs to the MBA SAM, and upon N{sub 2} purging, about two-thirds of it desorbs. The aliphatic acid SAMs follow a similar trend. 40 refs., 10 figs., 2 tabs.« less
  • We present a two-dimensional continuous cellular automaton that is equivalent to a driven spring-block model. Both the conservation and the anisotropy in the model are controllable quantities. Above a critical level of conservation, the model exhibits self-organized criticality. The self-organization of this system and hence the critical exponents depend on the conservation and the boundary conditions. In the critical isotropic nonconservative phase, the exponents change continuously as a function of conservation. Furthermore, the exponents vary continuously when changing the boundary conditions smoothly. Consequently, there is no universality of the critical exponents. We discuss the relevance of this for earthquakes. Introducingmore » anisotropy changes the scaling of the distribution function, but not the power-law exponent. We explore the phase diagram of this model. We find that at low conservation levels a localization transition occurs. We see two additional phase transitions. The first is seen when moving from the conservative into the nonconservative model. The second appears when passing from the anisotropic two-dimensional system to the purely one-dimensional system.« less