Cryogen-free dilution refrigerator for research on quantum magnetism and correlated electronic systems
Abstract
Materials whose properties are dominated and defined by quantum mechanical effects are currently a primary focus of research in fields such as physics, materials science, and chemistry. These efforts cover both pure research and potential technological applications, with efforts spanning electronic, optical, and magnetic properties and responses. Issues of quantum coherence and information encoding notably form the basis of quantum computation and communications. The quantum states in such materials are typically very delicate and easily destroyed by temperature, and thus need to be cooled to near absolute zero before they can be created and manipulated. Here, we propose to purchase a helium dilution refrigerator, capable of cooling both the materials of interest and the tools to probe them to within 0.01 degrees of absolute zero without dependence on increasingly expensive and difficult to procure liquid cryogens. In many materials, creating notable quantum states requires tuning via external mechanisms such as pressure or magnetic field; to meet these needs, the system we propose is equipped with a superconducting magnet capable of flexible field configurations, and it is designed to interface with existing diamond anvil cells capable of providing several hundred thousand atmospheres of pressure. The proposed system’s accessible learning curve will assist in the training of the next generation of quantum science researchers and engineers for government laboratories, industry, and academia.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Mar 06, 2024
- Source ID
- FA95502310385
Entities
People
- Daniel Silevitch
Organizations
- Air Force Office of Scientific Research
- California Institute of Technology
- United States Air Force