Diacell® CryoDAC-PPMS XL
Transport measurements, Quantum Design PPMS®, Pmax = 40 GPa, Tmin = 4 K, WD = 10 mm
Diacell® CryoDAC Series
- The Diacell CryoDAC-PPMS XL is an extension of the standard CryoDAC-PPMS upgrading the pressure range up to 40 GPa;
- The CryoDAC-PPMS XL is fitted with special seats made of Pascalloy™ (NiCrAl) superalloy capable of taking larger load force and not being marked by the table of the diamond anvil;
- This special version is also using larger diamond anvils, 3.10 mm Diacell Design anvils to sustain larger applied forces;
- Further enhancement of the performance of the cell can be achieved using the CryoDAC-PPMS XL Clamps (See accessories).
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Description
The Diacell® CryoDAC-PPMS XL is a diamond anvil cell for conducting transport measurements on a Quantum Design PPMS® platform. The DAC is interfacing with the PPMS® with a puck similar to the one on the PPMS® platform.
The CryoDAC-PPMS XL has Pascalloy™ (NiCrAl) superalloy seats that can endure high loads without damage. It employs diamond anvils with a diameter of 3.10 mm, in contrast to the standard CryoDAC-PPMS diamond anvil cell which uses 2.50 mm anvils. These new features will allow forces up to 6000 N.
As standard, the CryoDAC-PPMS XL is fitted with bevelled diamond anvils. Using such anvils will protect the electrical wires emerging from the gasket, from damage. At the time of purchase, customers can choose from different culet sizes ranging from C=0.30 mm to 1.00 mm.
The performance of this cell is further enhanced by a set of optional clamps. The clamps help to apply more load on the piston (up to 8000 N), which is afterwards transferred to the CryoDAC-PPMS XL clamping screws.
The combination of Pascalloy™ (NiCrAl) superalloy seats, 3.10 mm diameter diamond anvils, and clamps increases the maximum pressures that this diamond anvil cell can achieve.
The maximum pressure (Pmax) for the Diacell® CryoDAC-PPMS XL is 65% greater than the Pmax for the standard CryoDAC-PPMS. When the Diacell® CryoDAC-PPMS XL is used with the associated clamps, the Pmax is 100% higher. The table below shows comparative maximum pressures:
| Culet size (µm) | 200 | 300 | 400 | 500 | 600 | 800 | 1000 |
| Pmax (GPa) for CryoDAC-PPMS (*) | N/A | 48 | 31 | 20 | 14 | 8 | 5 |
| Pmax (GPa) for CryoDAC-PPMS XL (*) | N/A | 79 | 51 | 33 | 23 | 13 | 8 |
| Pmax (GPa) for CryoDAC-PPMS XL with clamps (*) | N/A | 96 | 62 | 40 | 28 | 16 | 10 |
(*) The Pmax values are only indicative. The maximum pressure achievable with a DAC is influenced by many others experimental parameters, like the gasket characteristics (material, thickness and hole size) or the pressure transmitting medium.
Specifications
| Cell Material | High Strength Beryllium Copper Alloy |
| Anvil Support Plate | Pascalloy™ (NiCrAl) |
| Pressure Mechanism | Screw Drive |
| Maximum Pressure | 33 GPa (40 GPa with the clamp) |
| Temperature Range | 4 K |
| Top Angle | Conical 40º |
| Bottom Angle | Conical 6º |
| Lateral Access | 4 large sight holes (7 mm by 4 mm) |
| Heating | N/A |
| Cooling | Via PPMS® Cryostat |
| DAC Diameter | 24 mm |
| DAC Height | 48 mm (exc. Puck) |
| Working Distance to Sample | 10 mm |
| Numerical Aperture | 0.34 |
| Interfacing Solution | PPMS®-type puck |
| DAC Weight | 140 g |
Maximum pressure is dependent upon the culet size of the anvils. Almax easyLab is committed to its policy of continuous improvement. Specifications may change without notice. easyLab and Diacell are registered trademarks of Almax easyLab. PPMS is a registered trademark of Quantum Design, Inc.
Documents
We have compiled a series of technical documents (brochures, articles, technical drawings, …) which you might find useful to help you understand this product better.
Technical documentation
Technical Drawing
Please contact us for further details on the engineering drawings.
Spares, Accessories and Options
Our diamond anvil cells are aligned and mechanically tested before leaving our factory on their way to your laboratory.
They also come supplied with the required basic tooling, including gasket blanks, to use them. All is contained in the transportation casing to move around laboratories easily.
Below you can find some of the accessories and spares you might also consider. If you cannot find what you need, please do not hesitate to contact our team.
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Diamond Anvils 3.1 mm Diacell® design diamond anvils, fitted in BeCu rings for easy fitting in the CryoDAC-PPMS XL Product code: [P01934], [M50005] |
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Anvil Support Plate Pascalloy™ (NiCrAl) anvil seat, 40° conical aperture Product code: [M82012]/[M82013] |
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CryoDAC-PPMS XL, Clamps Optional set of clamps for pressure loading of the CryoDAC-PPMS XL Product code: [A82002] |
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Puck For integration with commercial PPMS equipment Product code: [A05100] |
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Custom Probe for Cryostat Purposely designed probe to integrate the CryoDAC-PPMS into specific cryostats Product code: [Consult us] |
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Intelligent Anvil (i- diamonds) Patterning of intelligent anvil with 8 tungsten leads (10 μm width) covered by a thin insulating layer of diamond. Product code: [P02193] |
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Patterned Anvil Gold patterning of 4 electrodes, Inter-distance = 0.1 mm (C=0.40 mm)/ or 0.2 mm (C= 0.80 mm) Product code: [P01862] |
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PCB PCB to connect electrical leads for transport measurements Product code: [P00486] |
FAQs
What is the maximum pressure I can achieve with the CryoDAC-PPMS XL and a given culet size?
| Culet size (µm) | 200 | 300 | 400 | 500 | 600 | 800 | 1000 |
| Pmax (GPa) for CryoDAC PPMS-XL (*) | N/A | 79 | 51 | 33 | 23 | 13 | 8 |
| Pmax (GPa) for CryoDAC PPMS-XL with clamps (*) | N/A | 96 | 62 | 40 | 28 | 16 | 10 |
(*) The Pmax values are only indicative. The maximum pressure achievable with a DAC is influenced by many others experimental parameters, like the gasket characteristics (material, thickness and hole size) or the pressure transmitting medium.
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