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Tuning order-by-dis...
Tuning order-by-disorder multiferroicity in CuO by doping
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Hellsvik, J. (author)
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Balestieri, M. (author)
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Usui, T. (author)
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Stroppa, A. (author)
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- Bergman, Anders (author)
- Uppsala universitet,Materialteori
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- Bergqvist, Lars (author)
- KTH,Materialfysik, MF
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Prabhakaran, D. (author)
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- Eriksson, Olle (author)
- Uppsala universitet,Materialteori
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Picozzi, S. (author)
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Kimura, T. (author)
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Lorenzana, J. (author)
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(creator_code:org_t)
- 2014
- 2014
- English.
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In: Physical Review B. Condensed Matter and Materials Physics. - 1098-0121 .- 1550-235X. ; 90:1, s. 014437-
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- The high Curie temperature multiferroic compound CuO has a quasidegenerate magnetic ground state that makes it prone to manipulation by the so-called "order-by-disorder" mechanism. First principle computations supplemented with Monte Carlo simulations and experiments show that isovalent doping allows us to stabilize the multiferroic phase in nonferroelectric regions of the pristine material phase diagram with experiments reaching a 250% widening of the ferroelectric temperature window with 5% of Zn doping. Our results allow us to validate the importance of a quasidegenerate ground state on promoting multiferroicity on CuO at high temperatures and open a path to the material engineering of multiferroic materials. In addition we present a complete explanation of the CuO phase diagram and a computation on the incommensurability in excellent agreement with experiment without free parameters.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Hellsvik, J.
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Balestieri, M.
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Usui, T.
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Stroppa, A.
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Bergman, Anders
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Bergqvist, Lars
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show more...
-
Prabhakaran, D.
-
Eriksson, Olle
-
Picozzi, S.
-
Kimura, T.
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Lorenzana, J.
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show less...
- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
- Articles in the publication
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Physical Review ...
- By the university
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Royal Institute of Technology
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Uppsala University