Quenching of Giant Hysteresis Effects in La1-zYzHx Switchable Mirrors

A.T.M. van Gogh, D.G. Nagengast, Ernst S. Kooij, N.J. Koeman, R. Griessen

Research output: Contribution to journalArticleAcademic

26 Citations (Scopus)


The giant intrinsic hysteresis as a function of hydrogen concentration x in the optical and electrical properties of the archetypal switchable mirror YHx is eliminated by alloying Y with the chemically similar La. The La1-zYzHx films with z≤0.67 are essentially hysteresis-free. The origin of the large hysteresis of alloys with z≥0.86 is the large uniaxial lattice expansion that accompanies their fcc to hexagonal phase transition in combination with lateral clamping.
Original languageUndefined
Pages (from-to)2156-2159
JournalPhysical review letters
Issue number10
Publication statusPublished - 2000


  • IR-75180

Cite this