Which of the following is a common use of a Schottky diode?

A Schottky diode features a unique metal-to-semiconductor junction rather than the standard P-N junction found in typical diodes. This specific construction provides two major advantages: an unusually low forward voltage drop and an extremely fast switching speed with virtually no reverse recovery time. Because there is no charge storage (no traditional depletion region) to dissipate when the voltage reverses, Schottky diodes can respond to rapidly changing alternating currents with great efficiency. This makes them perfectly suited for high-frequency applications, such as acting as mixers or detectors in VHF and UHF circuits. Common distractors on this question include uses for other specific diode types. For instance, negative resistance oscillators typically use tunnel diodes, and constant voltage references rely on Zener diodes.