ND1

ND1 Microkelvin Platform is a cutting-edge facility designed to accommodate large-scale experiments conducted at ultra-low temperatures, reaching as low as 100 μK and 200 μK. Our facility achieves these extreme conditions through the operation of a copper nuclear adiabatic demagnetization stage in tandem with an Oxford Instruments dilution refrigerator.

Key Features of the ND1 Microkelvin Refrigerator:

1. Advanced SQUID-Based Amplifiers: The ND1 is equipped with four state-of-the-art SQUID-based amplifiers, including two-stage DC SQUIDs from our collaborators at PTB. These high-sensitivity current amplifiers enable a range of capability:
   • Broadband Low-Frequency NMR: Unlock the mysteries of matter at the atomic scale with our advanced NMR capabilities.
   • Fast Current Sensing Noise Thermometry: Measure temperatures ranging from 100μK to 4K with precision and speed using noise thermometry techniques.
   • Heat Capacity Measurements: Investigate heat capacity from 100μK to 100mK using noise thermometry for detailed insights into material properties.

Scientific Focus:

At ND1, our primary scientific objectives are centered around the following research areas:

1. Quantum Materials with Two-Dimensional Helium: We aim to explore and realize quantum materials using two-dimensional helium as fundamental model systems. These systems serve as ideal platforms for studying strongly correlated quantum matter.
2. Interplay of Nuclear and Electronic Magnetism with Superconductivity: Investigate the fascinating interplay between nuclear magnetism, electronic magnetism, and superconductivity in heavy fermion systems.
3. Novel Calorimetry Techniques: We are at the forefront of developing and applying innovative calorimetry techniques to gain deeper insights into material properties.
4. Mechanical Resonators for Quantum Studies: We use mechanical resonators, including torsional oscillators and NEMS (Nanoelectromechanical Systems), to study the behavior of quantum fluids and solids.