Which Microstat

MICROSTATMicrostat liquid cryogen optical cryostats for microscopyWhich Microstatis right for you?Our easy to use, compact and efficientMicrostat cryostats offer a wide rangeof options to suit most spectroscopyapplications. They provide a widetemperature range (from 2 K up to500 K) while providing excellentoptical access.The Microstat model of choice willdepend on the base temperature, coolingtechnology and sample environmentrequired for your experiments.Typical applications:For spectroscopyapplications, seethe guide onour OptistatTMproducts Micro-FTIR Micro-Raman Micro-luminescence Kerr and Faraday effects Micro-photoluminescenceWith 5 T anceMicrostatN77.2 – 500 KNitrogen only2 mmMicrostatHe2.2 – 500 KHelium or nitrogen 5.5 mmMicrostatHiRes2.7 – 500 KHelium or nitrogen 5.7 mmMicrostatMO6 – 300 KHelium only8.5 mm

MICROMicrostat icrostatMOCooling mediumLiquid nitrogenLiquid helium orliquid nitrogenLiquid helium orliquid nitrogenLiquid heliumTemperature range77.2 - 500 K2.2 - 500 K2.7 - 500 K6 - 300 KTemperature stability 0.5 K 0.1 K 0.1 K 0.1 KMagnetic fieldNANACooldown time 10 min 10 min 15 min4 hoursSample spacediameter x height (mm)20 x 220 x 520 x 511 x 11Working distance2 (mm)24.5 to 5.58 for rectangular tail2.2 to 5.78.5Vibration (vertical)3 0.1 µm 0.1 µm 20 nm 20 nmLateral sample holder driftat constant temperature3 1 µm / hour 1 µm / hour150 nm / hour 4 nm / minCryogenic consumption (L/hr)at 4.2 K for heliumat 80 K for nitrogen 0.5 (nitrogen) 0.45 (helium) 0.7 (helium)2 (helium)1NA15TFor full details see product page.Note 1: Rectangular tail MicrostatHe and MicrostatHires pillared version are suitable for use with an electromagnet.Note 2: Working distance defined as the distance from the sample holder to the window top surfaceNote 3: The stability will be dependent upon the final system’s configuration and the environment that the equipment is used in.Microstat family

OMICROMICROThe Microstat systemFull system integration and controlSystem components designed foroptimum cryostat performanceTransfer tube (helium cryostats only):It plays an important part in the overall helium consumptionand base temperature capability of helium cooled cryostats.Oxford Instruments Low Loss Transfer tubes (LLT) use theMagnet power supplycold gas exiting the cryostat to cool the shields surroundingthe incoming liquid within the transfer tube. As a result, theBest in class stability performanceand optimised for accuracy and low noiseconsumption of our cryostats is the lowest on the market,dramatically reducing your running costs.The MercuryiPS is used to energise the magnet of theMicrostatMO.MercuryiTCAutomaticneedle valvePressure gaugesTo heliumrecoveryElectrical accessVC-U FlowmeterVacuum spaceSample holderRadiation shieldQuickreleaseclampTypical system set-up.Transfer tubeFlowcontrolvalveVacuumpressurerelief lligent cryogenic environment controllerEasy monitoring and control of the sample stageThe MercuryiTC controller combines several instruments into one allowing temperature control at the heatexchanger with options for gas flow control as well as an extra sensor channel for thermometry measurementdirectly at the sample stage. Everything can be accessed through touch screen front panel or remotely.Microstat family

MICROMicrostatNCompact nitrogen cooledLowest nitrogenconsumptionon the marketThiscryostat has nitrogenbeen designed forCompactcooledexperiments requiring liquid nitrogentemperatures. It is very compact and lightweight and only requires a compactnitrogen container which is very convenient when space is limited. Wide temperature range: from 77.2 K to 500 K Extremely compact: 90 mm diameter by 24 mm thickness. Only 400 g Economical use of cryogens: less than 0.5 L/h Quick cooldown: 80 K in less than 10 minutes Adjustable sample holders accomodate samples up to 8 mm thickness Easy integration into commercial microscopes facilitated by its compact size andNitrogen inletNitrogen outletTo vacuum pumpElectrical accessshort working distance (as low as 3 mm). Interface plate available as option forattaching the MicrostatN directly onto microscope translation stage Suitable for reflection and transmission experiments via choice of sample holders Electrical measurements via 4-pin electrical feed wire to heat exchanger190 mmHeat exchangerwith heaterand sensor126ºVacuum space90 mmTwo sizes of windows to choose fromdepending on sample sizes:Reflectancesample holderOptical specifications24 mmTransmissionsample holder10 mmHeatexchangersupport45ºSchematic cross-section view of MicrostatN. Note the windowaperture and angles of admittance for 0.5 mm thick windows.ReflectanceWindow thickness0.5 mm1.5 mmClear access diameter10 mm25 mmSample holder towindow top surface3 mm3 mmAngle of admittance(to surface of sampleholder at centre)126 º160 ºMax sample thickness2 mm1 mmMax sample diameter20 mm20 mmNote: All dimensions are approximate and relate to the top windowwith plain sample holder.Microstat family

OMICROMicrostatHe / MicrostatHe-RMulti-experiments, helium cooledMulti-experiments,Thishelium cryostat is well suited for experiments requiring a low temperatureenvironmentwhich can evolved in the future due to its flexibility.helium andcooled Wide temperature range: Suitable for reflection and2.2 K to 500 Ktransmission experiments via Easy integration into commercialmicroscopes facilitated by itscompact size and short workingchoice of sample holders Adjustable working distance viafor attaching the MicrostatHeOptistatCF-V, MicrostatHe anddirectly onto microscope144º144o25mm25 mm1111mmmmHeatexchangerMicrostatHe-R with rectangulartranslation stage Economical use of cryogens: thelowest consumption on the marketusing only 0.45 l/hr at 4.2 K 4545 mmmmto less than 3 mm Interchangeable tail between theSchematic cross-sectionviewSchematiccross-sectionof MicrostatHeviewof MicrostatHe7070 mmmmsample holder. Can be adjusteddistance (as low as 4.5 mm).Interface plate available as optionMicrostatHe Specificationswith heaterHeatexchangerand sensorwithheaterand sensorAdjustableAdjustablesamplesample holderholdertail Can be used with liquid nitrogen Electrical measurements viaSchematic cross-sectionSchematic cross-sectionview of 5 mmmm60.5110º110 10-pin electrical feed wire to heatRapid cooldown time: 4.2 K in2020 mmmmexchanger. Optional coaxial cablesless than 10 minutes!Lowest heliumconsumption and fastestcooldown on the marketHeat exchangerHeat exchanger wwith heaterheater and sensorand sensor2222 mmmmAdjustable samplesample holderAdjustableholderTransfer tube entry portTransfer tube entry portVacuumpressurerelief valveVacuumpressurerelief valve135 mm135 mmWindow aseclipQuickreleaseclip36 mm255 mmCryostat36 mm254 mmMicrostatHeMicrostatHe-RRectangular tail0.5 mm1.5 mm1 mm10 mm25 mm20 mmSample holder towindow top surface4.5 mm5.5 mm8 mmAngle of admittance(to surface of sampleholder at centre)102 º144 º110 ºMax sample thickness5 mm5 mm4 mmMax sample diameter20 mm20 mm20 mmClear access diameterAll dimensions are approximate and relate to the top window with plane sample holder incentral positionVacuum spaceSampleholderRadiationshield50 mm110 mmSample holder10 mm side portRadiation shield30 mm10 mm side port30 mmMicrostatHe and MicrostatHe-R with rectangular tail dimensions.Microstat family

MICROMicrostatHiResHigh resolution helium cooledThe lowest vibrationmicroscopy cryostaton the marketThis cryostat has been designed to minimise vibration and sampledrift at stable and constant temperatures. This is achieved by cooling the sampleon a stable cold platform rather than a cold finger and feeding the helium tothe heat exchanger via a capillary thus isolating the helium flow vibration. TheMicrostatHiRes is particularly well suited to sensitive applications such as microphotoluminescence mapping of semiconductor microstructures with sub-micronspatial resolution. Wide temperature range: from 2.7 K Easy integration into commercialto 500 Kmicroscopes facilitated by its compact Low sample drift: 0.15 µm per hour(typical) at 4.2 K enabling measurementsover many hours. 13 µm (typical)cooling from 300 K to 4.2 Ksize. Only 90 mm diameter by 45 mmthickness. Lightweight 1.5 kg only Economical use of cryogens: thelowest consumption on the market Low sample vibration: 20 nm typical using only 0.7 l/hr at 4.2 K Suitable for reflection and Extremely short working distancetransmission experiments via choiceof 2.2 mm enabling the use of highmagnification optics Adjustable top flange (3.5 mmadjustable distance) enablingsamples of different thicknesses Rapid cooldown time: 4.2 K in lessthan 15 minutes!Pillared versionavailable as anoption for use withelectromagnets.of sample holders Experimental flexibility: may beoperated in any orientation142º or 166º AccessSample holder10 or 25 mmdiameterclear opticalaccess Electrical measurements via 10-pinelectrical feed wire to heat exchanger.Optional coaxial cables45-48.5 mmAdjustabletop90 mmOptional bottom windowOptical specifications488.5 mm45-48.5 mm90 mmElectrical accessVacuum pressurerelief valveTransfer tubeentry portReflectanceWindow thickness0.5 mm1.5 mmClear access diameter10 mm25 mmSample holder towindow top surface2.2 mm2.2 mmAngle of admittance(to surface of sampleholder at centre)142 º166 ºMax sample thickness5 mm4 mmMax sample diameter20 mm20 mmAll dimensions are approximate and relate to top window with plainsample holder in central position.Microstat family

OMCRMicrostatMOSystem forhigh resolutionmagneto-opticalmeasurementsThe MicrostatMO is acompact stable cryostat,which provides a cryogenicenvironment (6 K) ideal for sensitive optical and electrical measurements inWide temperature range: from 6 K to 300 K Magnetic field up to 5 T, satisfying the majority ofspectroscopy applicationsFully integratedsystem Minimum downtime: Convenient continuous operationincluding improved 300 K operation Low sample vibration: 20 nm typical Quick sample change using a demountable sample holder.options are available: a copper sample platform for Short working distance of 8.5 mm enabling the use of high Twolower base temperature or a sapphire platform for opticalLow sample drift: typically 4 nm/minmagnification optics Can be operated horizontally or vertically, providingflexibility for setting-up the experiment Designed for easy integration of optical components onthe cryostat top plate Can be used for reflection and transmission measurementstransmission measurements System can be cooled using a pressurised liquid heliumdewar for convenient operation with minimum vibration Mounting bracket supplied to clamp the cryostat to the benchthus reducing vibrations introduced by the transfer tubeTypical applications: Flux visualisation ofsuperconducting materials. 5 Tmagnetic field extends the rangeof samples that may be studiedto include materials with strongflux pinning Electrical transport measurementsusing very small currents fornanoscale samples, quantumdevices and nano-devices Measurement of dimentionalchanges of magneto-restrictivematerialsMicrostat family