000905434 001__ 905434
000905434 005__ 20220131120331.0
000905434 037__ $$aFZJ-2022-00675
000905434 1001_ $$0P:(DE-Juel1)176716$$aWuttig, Matthias$$b0$$eCorresponding author$$ufzj
000905434 1112_ $$a14th International Conference on Solid State Chemistry (SSC 2021)$$cTrencin$$d2021-06-14 - 2021-06-17$$wSlovakia
000905434 245__ $$aPhase Change Memory Materials by Design
000905434 260__ $$c2021
000905434 3367_ $$033$$2EndNote$$aConference Paper
000905434 3367_ $$2DataCite$$aOther
000905434 3367_ $$2BibTeX$$aINPROCEEDINGS
000905434 3367_ $$2DRIVER$$aconferenceObject
000905434 3367_ $$2ORCID$$aLECTURE_SPEECH
000905434 3367_ $$0PUB:(DE-HGF)6$$2PUB:(DE-HGF)$$aConference Presentation$$bconf$$mconf$$s1642493299_24691$$xInvited
000905434 520__ $$aIt has been a long-time dream of mankind to design materials with tailored properties. In recent years, the focus of our work has been the design of phase change materials for applications in data storage and advanced photonic applications. In this application, the remarkable property portfolio of phase change materials (PCMs) is employed, which includes the ability to rapidly switch between the amorphous and crystalline state. Surprisingly, in PCMs both states differ significantly in their properties. This material combination makes them very attractive for data storage applications in rewriteable optical data storage and active photonics, where the pronounced difference of optical properties between the amorphous and crystalline state is employed. This unconventional class of materials is also the basis of a storage concept to replace flash memory. Today’s talk will discuss the unique material properties, which characterize phase change materials. In particular, it will be shown that only a well-defined group of materials utilizes a unique bonding mechanism (metavalent bonding), which can explain many of the characteristic features of crystalline phase change materials. Different pieces of evidence for the existence of this novel bonding mechanism, which we have coined metavalent bonding, will be presented. In particular, we will present a novel map, which separates the known strong bonding mechanisms of metallic, ionic and covalent bonding, which provides further evidence that metavalent bonding is a novel and fundamental bonding mechanism. This insight is subsequently employed to design phase change materials for photonic applications. We will demonstrate how the optical contrast can be tuned in different regions of the spectral range, including the realization of plasmonic phase change materials.
000905434 536__ $$0G:(DE-HGF)POF4-5233$$a5233 - Memristive Materials and Devices (POF4-523)$$cPOF4-523$$fPOF IV$$x0
000905434 909CO $$ooai:juser.fz-juelich.de:905434$$pVDB
000905434 9101_ $$0I:(DE-588b)5008462-8$$6P:(DE-Juel1)176716$$aForschungszentrum Jülich$$b0$$kFZJ
000905434 9131_ $$0G:(DE-HGF)POF4-523$$1G:(DE-HGF)POF4-520$$2G:(DE-HGF)POF4-500$$3G:(DE-HGF)POF4$$4G:(DE-HGF)POF$$9G:(DE-HGF)POF4-5233$$aDE-HGF$$bKey Technologies$$lNatural, Artificial and Cognitive Information Processing$$vNeuromorphic Computing and Network Dynamics$$x0
000905434 9141_ $$y2021
000905434 920__ $$lyes
000905434 9201_ $$0I:(DE-Juel1)PGI-10-20170113$$kPGI-10$$lJARA Institut Green IT$$x0
000905434 980__ $$aconf
000905434 980__ $$aVDB
000905434 980__ $$aI:(DE-Juel1)PGI-10-20170113
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