Abstract:
:Characterizing and understanding the emergence of multiple macroscopically ordered electronic phases through subtle tuning of temperature, pressure, and chemical doping has been a long-standing central issue for complex materials research. We report the first comprehensive studies of optical doping-induced emergence of stable phases and metastable hidden phases visualized in situ by femtosecond electron crystallography. The electronic phase transitions are triggered by femtosecond infrared pulses, and a temperature-optical density phase diagram is constructed and substantiated with the dynamics of metastable states, highlighting the cooperation and competition through which the macroscopic quantum orders emerge. These results elucidate key pathways of femtosecond electronic switching phenomena and provide an important new avenue to comprehensively investigate optical doping-induced transition states and phase diagrams of complex materials with wide-ranging applications.
journal_name
Sci Advjournal_title
Science advancesauthors
Han TR,Zhou F,Malliakas CD,Duxbury PM,Mahanti SD,Kanatzidis MG,Ruan CYdoi
10.1126/sciadv.1400173subject
Has Abstractpub_date
2015-06-26 00:00:00pages
e1400173issue
5issn
2375-2548pii
1400173journal_volume
1pub_type
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