Do we have a precise word or phrase to describe those who were born after the year 1990?

Is it possible to have a label that can cover the general characteristics of a generation?

I have been obsessed with both questions since a week-long trip I had with a group of university students in July. Most of them were born in 1990 and some even later. My knowledge about them by seeing what they have done, reading what they have written and talking with them has changed my preconceptions about this emerging generation.