Effect of chemical pressure on the electronic phase transition in Ca 1-x Sr x Mn 7 O 12 films

Huon, A.; Lee, D.; Herklotz, A.; Fitzsimmons, M. R.; Lee, H. N.; May, S. J.

doi:10.1063/1.4994089

Title: Effect of chemical pressure on the electronic phase transition in Ca _1-x Sr _x Mn ₇ O ₁₂ films

Abstract

Here, we demonstrate how chemical pressure affects the structural and electronic phase transitions of the quadruple perovskite CaMn₇O₁₂ by Sr doping, a compound that exhibits a charge-ordering transition above room temperature making it a candidate for oxide electronics. We also have synthesized Ca_1-xSr_xMn₇O₁₂ (0 ≤ x ≤ 0.6) thin films by oxide molecular beam epitaxy on (LaAlO₃)_0.3(SrAl_0.5Ta_0.5O₃)_0.7 (LSAT) substrates. The substitution of Sr for Ca results in a linear expansion of the lattice, as revealed by X-ray diffraction. Temperature-dependent resistivity and X-ray diffraction measurements are used to demonstrate that the coupled charge-ordering and structural phase transitions can be tuned with Sr doping. An increase in Sr concentration acts to decrease the phase transition temperature (T*) from 426 K at x = 0 to 385 K at x = 0.6. Furthemore, the presence of a tunable electronic phase transition, above room temperature, points to the potential applicability of Ca_1-xSr_xMn₇O₁₂ in sensors or oxide electronics, for example, via charge doping.

Authors:

Huon, A. ^[1];

^[2];

^[3];

^[2]; May, S. J. ^[1]

Drexel Univ., Philadelphia, PA (United States). Dept. of Materials Science and Engineering
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Materials Science and Technology Division
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Quantum Condensed Matter Division; Univ. of Tennessee, Knoxville, TN (United States). Dept. of Physics and Astronomy

Publication Date:: Mon Sep 18 00:00:00 EDT 2017

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1407986

Alternate Identifier(s):: OSTI ID: 1392139

Grant/Contract Number:: AC05-00OR22725; SC0014664

Resource Type:: Accepted Manuscript

Journal Name:: APL Materials

Additional Journal Information:: Journal Volume: 5; Journal Issue: 9; Journal ID: ISSN 2166-532X

Publisher:: American Institute of Physics (AIP)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Huon, A., Lee, D., Herklotz, A., Fitzsimmons, M. R., Lee, H. N., and May, S. J. Effect of chemical pressure on the electronic phase transition in Ca 1-x Sr x Mn 7 O 12 films.  United States: N. p., 2017. 
Web.  doi:10.1063/1.4994089.

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                    Huon, A., Lee, D., Herklotz, A., Fitzsimmons, M. R., Lee, H. N., & May, S. J. Effect of chemical pressure on the electronic phase transition in Ca 1-x Sr x Mn 7 O 12 films.  United States.  https://doi.org/10.1063/1.4994089

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                    Huon, A., Lee, D., Herklotz, A., Fitzsimmons, M. R., Lee, H. N., and May, S. J. Mon .  
"Effect of chemical pressure on the electronic phase transition in Ca 1-x Sr x Mn 7 O 12 films".  United States.  https://doi.org/10.1063/1.4994089.  https://www.osti.gov/servlets/purl/1407986.

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@article{osti_1407986,

  title        = {Effect of chemical pressure on the electronic phase transition in Ca 1-x Sr x Mn 7 O 12 films},

  author       = {Huon, A. and Lee, D. and Herklotz, A. and Fitzsimmons, M. R. and Lee, H. N. and May, S. J.},

  abstractNote = {Here, we demonstrate how chemical pressure affects the structural and electronic phase transitions of the quadruple perovskite CaMn7O12 by Sr doping, a compound that exhibits a charge-ordering transition above room temperature making it a candidate for oxide electronics. We also have synthesized Ca1-xSrxMn7O12 (0 ≤ x ≤ 0.6) thin films by oxide molecular beam epitaxy on (LaAlO3)0.3(SrAl0.5Ta0.5O3)0.7 (LSAT) substrates. The substitution of Sr for Ca results in a linear expansion of the lattice, as revealed by X-ray diffraction. Temperature-dependent resistivity and X-ray diffraction measurements are used to demonstrate that the coupled charge-ordering and structural phase transitions can be tuned with Sr doping. An increase in Sr concentration acts to decrease the phase transition temperature (T*) from 426 K at x = 0 to 385 K at x = 0.6. Furthemore, the presence of a tunable electronic phase transition, above room temperature, points to the potential applicability of Ca1-xSrxMn7O12 in sensors or oxide electronics, for example, via charge doping.},

  doi          = {10.1063/1.4994089},

  journal      = {APL Materials},

  number       = 9,

  volume       = 5,

  place        = {United States},

  year         = {Mon Sep 18 00:00:00 EDT 2017},

  month        = {Mon Sep 18 00:00:00 EDT 2017}

}

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Works referencing / citing this record:

First-principles study of thermoelectric properties of Li-based Nowotony–Juza phases
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Title: Effect of chemical pressure on the electronic phase transition in Ca 1-x Sr x Mn 7 O 12 films

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Giant Barrier Layer Capacitance Effects in CaCu3Ti4O12 Ceramics
journal, September 2002

Cubic structure and canted antiferromagnetism of CaMn7O12 doped with trivalent cations (Fe, Al, Cr)
journal, February 2014

Nature of low-temperature phase transitions in CaMn7O12
journal, October 2005

Oxide Electronics Utilizing Ultrafast Metal-Insulator Transitions
journal, August 2011

New functional materials AC3B4O12 (Review)
journal, November 2007

A -site ordered quadruple perovskite oxides
journal, July 2016

Modulation of over 10 ¹⁴ cm ⁻² electrons in SrTiO ₃ /GdTiO ₃ heterostructures
journal, May 2014

A-Site-Ordered Perovskites with Intriguing Physical Properties
journal, October 2008

Low-Temperature Structural Modulations in CdMn ₇ O ₁₂ , CaMn ₇ O ₁₂ , SrMn ₇ O ₁₂ , and PbMn ₇ O ₁₂ Perovskites Studied by Synchrotron X-ray Powder Diffraction and Mössbauer Spectroscopy
journal, April 2016

Soft-phonon-driven orbital order in ${CaMn}_{7} O_{12}$
journal, November 2016

Magneto-orbital helices as a route to coupling magnetism and ferroelectricity in multiferroic CaMn7O12
journal, January 2012

First-principles study of thermoelectric properties of Li-based Nowotony–Juza phases
journal, September 2019

First-principles investigations of orthorhombic-cubic phase transition and its effect on thermoelectric properties in cobalt-based ternary alloys
journal, November 2019

First-principles investigations of orthorhombic-cubic phase transition and its effect on thermoelectric properties in cobalt-based ternary alloys
text, January 2019