It has a high blocking temperature, is resistant to mechanical weathering and is chemically inert.
2.
In the ideal sample, the PDC did not raise the temperature of the fragment beyond the highest blocking temperature.
3.
Another common source of anisotropy, inverse magnetostriction, is induced by internal blocking temperature at which a transition to superparamagnetism occurs.
4.
The age that can be calculated by radiometric dating is thus the time at which the rock or mineral cooled to blocking temperature.
5.
The temperature at which this happens is known as the closure temperature or blocking temperature and is specific to a particular material and isotopic system.
6.
This temperature is what is known as blocking temperature and represents the temperature below which the mineral is a closed system to measurable diffusion of isotopes.
7.
In this regard, they are contrasted with single-molecule magnets, which are essentially superparamagnets ( displaying a blocking temperature versus a true critical temperature ).
8.
The temperature at or above which an antiferromagnetic layer loses its ability to " pin " the magnetization direction of an adjacent ferromagnetic layer is called the blocking temperature of that layer and is usually lower than the N�el temperature.
9.
As the rock continues to cool, there is a critical temperature at which the magnetic anisotropy becomes large enough to keep the moment from wandering : this temperature is called the " blocking temperature " and referred to by the symbol T _ B.
10.
The temperature was raised above the lowest blocking temperature and therefore some minerals on recooling acquired the magnetism of the Earth as it was in 79 AD . The overall field of the sample was the vector sum of the fields of the high-blocking material and the low-blocking material.