Abstract
Strain glassy behavior (SGB) in correlation with premartensitic tweed (PMT) morphology was observed in an Au(7)Cu(5)Al(4) alloy, which is different from previously observed SGB that is incompatible with PMT in doped Ti-Ni alloys. Additionally, an inverse freezing transition from martensite to premartensitic strain glass upon heating was experimentally discovered, confirming a recent theoretical prediction. Investigations of rich phenomena in nonmagnetic Au-Cu-Al alloys are expected to shed light on the origin of both premartensitic transition and glasses.
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