Cryostrain: a cryogenic uniaxial strain cellApply continuously tunable tensile and compressive strains within a cryogenic environment.
Suitable for use with scanning probe and confocal microscopy, x-ray and neutron scattering, resistivity, susceptibility and many other measurement techniques.
This product is a component for use with a wide range of commercial or home-built cryogenic measurement systems.??
Product Overview
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· 可對(duì)樣品施加精確的、連續(xù)可調(diào)的壓縮和拉伸應(yīng)變,無(wú)機(jī)械回差。
· 高度緊湊,最小的產(chǎn)品(CS100)可以垂直或水平安裝在1”(26 mm)孔內(nèi)(可用于PPMS
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· 溫度補(bǔ)償—施加的應(yīng)變可以在很寬溫度范圍內(nèi)保持恒定。
· 工作溫度低于1 K,可用于高磁場(chǎng)。
· 不同角度接觸樣品,適用于低溫掃描探針顯微鏡


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1這些最大值僅對(duì)應(yīng)電池用于其最大室溫位移時(shí),對(duì)于較小的位移可以使用更僵硬的樣品,有關(guān)指導(dǎo),請(qǐng)參見(jiàn)下圖。
2基于典型楊氏模量中關(guān)于彈簧常數(shù)的預(yù)測(cè)樣品的橫截面積,更長(zhǎng)的樣本可能,但最大應(yīng)用的應(yīng)變將減少(應(yīng)變調(diào)諧器位移保持相同)。
3常規(guī)導(dǎo)線(xiàn)可使用高達(dá)?±200 V電壓,更多細(xì)節(jié)信息請(qǐng)聯(lián)系我們進(jìn)行咨詢(xún)。
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Applications
Match theory to experiment
Significant recent research effort has been spent investigating the electronic and magnetic properties of materials when subjected to uniaxial strains because it allows a convenient way to compare structure/property relationships as predicted from theory experimentally. See?
Uniaxial Strain in Condensed Matter Physics.
Compatible with a wide range of probes
The cryostrain cell is the ideal component for your cryogenic measurement system -? compatible with a wide variety of different probes, including x-ray diffraction, scanning probe microscopy, optical imaging and electrical measurements.
Complementary to existing techniques
The cryostrain cells is an ideal companion to diamond anvil cells, providing a complementary technique while also offering better sample access, positive and negative stresses, and in-situ tunability.
A tried and tested technology
The Cryostrain family is based on a technology that has been used in an laboratory environment for more than two years leading to several publications, including a?
recent high profile paper in the journal science.
操作原理
如左側(cè)圖中的CS100,顯示了當(dāng)樣品經(jīng)受正應(yīng)變和負(fù)應(yīng)變時(shí),應(yīng)變計(jì)中的運(yùn)動(dòng)。為了演示的目的,圖中所示的移動(dòng)經(jīng)過(guò)高度夸張?zhí)幚怼?br>
溫度補(bǔ)償
壓電陶瓷在冷卻時(shí)會(huì)沿著其輪詢(xún)方向延長(zhǎng),這種延長(zhǎng)比壓電陶瓷行程的長(zhǎng)度長(zhǎng)數(shù)倍,意味著除非采取特殊處理,否則當(dāng)溫度改變時(shí),無(wú)法適當(dāng)?shù)乜刂茟?yīng)變。低溫應(yīng)變系列的應(yīng)變計(jì)克服了這一問(wèn)題,壓電陶瓷的特殊布置抵消了熱膨脹,使應(yīng)變不受壓電陶瓷的熱延伸影響。
拓展范圍
除了熱補(bǔ)償之外,具有數(shù)對(duì)彼此對(duì)立工作的壓電陶瓷,意味著對(duì)比直接膠合到樣品上單個(gè)壓電疊堆可以產(chǎn)生更高的位移; 考慮到本質(zhì)上短壓電行程長(zhǎng)度有價(jià)值的改進(jìn)。應(yīng)變樣品非常容易接近,將樣品安裝在可以最大化角度進(jìn)入的頂部表面上。例如,當(dāng)樣品安裝在應(yīng)變單元上時(shí),掃描探針尖端可以?huà)呙璞砻妗?br>