This is due to so -
called phase change materials, novel materials that change their optical properties depending on the arrangement of the atoms: Within shortest periods of time, they can change between crystalline (regular) and amorphous (irregular) states.
Not exact matches
In most cases, a type of graphic
called a
phase diagram helps researchers predict structural and property
changes in a
material when it undergoes a
phase transition.
The solution to the puzzle turned out to come from work in other areas, including research to understand a different class
called phase -
change materials.
Analysis of
phase -
change materials showed that they work because of a particular kind of chemical bonding,
called resonant bonding — a type of bond in which electrons flip back and forth between several adjacent atoms.
DVDs and Blu - ray disks contain so -
called phase -
change materials that morph from one atomic state to another after being struck with pulses of laser light, with data «recorded» in those two atomic states.
That's because
materials scientists in China have recently found a way to speed up — by more than a factor of 10 — so -
called phase -
change random access memory (PCRAM), which can hold onto information even when your computer's power is off.
The walls contain something
called biologically based
phase -
change material, a passive technology that helps stabilize internal temperature.