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231224s2017 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201601979
|2 doi
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|a pubmed24n0872.xml
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|a eng
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| 100 |
1 |
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|a Kagawa, Fumitaka
|e verfasserin
|4 aut
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| 245 |
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|a Quenching of Charge and Spin Degrees of Freedom in Condensed Matter
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|c 2017
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 17.07.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2016 The Authors. Published by WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Electrons in condensed matter have internal degrees of freedom, such as charge, spin, and orbital, leading to various forms of ordered states through phase transitions. However, in individual materials, a charge/spin/orbital ordered state of the lowest temperature is normally uniquely determined in terms of the lowest-energy state, i.e., the ground state. Here, recent results are summarized showing that under rapid cooling, this principle does not necessarily hold, and thus, the cooling rate is a control parameter of the lowest-temperature state beyond the framework of the thermoequilibrium phase diagram. Although the cooling rate utilized in low-temperature experiments is typically 2 × 10-3 to 4 × 10-1 K s-1 , the use of optical/electronic pulses facilitates rapid cooling, such as 102 -103 K s-1 . Such an unconventionally high cooling rate allows some systems to kinetically avoid a first-order phase transition, resulting in a quenched charge/spin state that differs from the ground state. It is also demonstrated that quenched states can be exploited as a non-volatile state variable when designing phase-change memory functions. The present findings suggest that rapid cooling is useful for exploring and controlling the metastable electronic/magnetic state, which is potentially hidden behind the ground state
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|a Journal Article
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|a Review
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|a charge ordering
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|a organic conductors
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|a phase-change memory
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|a quenching
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|a skyrmion
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| 700 |
1 |
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|a Oike, Hiroshi
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 29(2017), 25 vom: 21. Juli
|w (DE-627)NLM098206397
|x 1521-4095
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|g volume:29
|g year:2017
|g number:25
|g day:21
|g month:07
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|u http://dx.doi.org/10.1002/adma.201601979
|3 Volltext
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