Method for regulating thermal boundary conductance between metal and insulator

A method for regulating a thermal boundary conductance between a metal and an insulator, comprising:

• arranging the metal on a surface of the insulator, a contact surface between the metal and the insulator being a boundary between the metal and the insulator, and the insulator comprising one member selected from the group consisting of a ferroelectric, a piezoelectric, and a pyroelectric;
• under the condition that the insulator is the ferroelectric, applying an external electric field to the ferroelectric, and adjusting a magnitude of the external electric field, or an included angle between a direction of the external electric field with the boundary between the metal and the insulator to regulate the thermal boundary conductance between the metal and the insulator;
• under the condition that the insulator is the ferroelectric or the piezoelectric, applying a stress to the ferroelectric or the piezoelectric, and adjusting a magnitude of the stress, or an included angle between a direction of the stress with the boundary between the metal and the insulator to regulate the thermal boundary conductance between the metal and the insulator;
• and
• under the condition that the insulator is the pyroelectric, adjusting a temperature of the pyroelectric to regulate the thermal boundary conductance between the metal and the insulator.