Quenching of Giant Hysteresis Effects in La1-zYzHx Switchable Mirrors

Gogh van, A.T.M. and Nagengast, D.G. and Kooij, E.S. and Koeman, N.J. and Griessen, R. (2000) Quenching of Giant Hysteresis Effects in La1-zYzHx Switchable Mirrors. Physical Review Letters, 85 (10). pp. 2156-2159. ISSN 0031-9007

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Abstract:	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.
Item Type:	Article
Copyright:	© 2000 The American Physical Society
Link to this item:	http://purl.utwente.nl/publications/75180
Official URL:	http://dx.doi.org/10.1103/PhysRevLett.85.2156
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