Navigation Links
New technology in the magnetic cooling of chips

Luis Hueso, the CICnanoGUNE researcher, together with researchers from the University of Cambridge, among others, has developed a new technology in the magnetic cooling of chips based on the straining of materials. Compared with the current technologies, this advance enables the impact on the environment to be lessened. The work has been published recently in the prestigious journal Nature Materials.

Current cooling systems, be they refrigerators, freezers or air conditioning units, make use of the compression and expansion of a gas. When the gas is compressed, it changes into a liquid state and when it expands it evaporates once again. To evaporate, it needs heat, which it extracts from the medium it touches and that way cools it down. However, this system is harmful for the environment and, what is more, the compressors used are not particularly effective.

One of the main alternatives that is currently being explored is magnetic cooling. It consists of using a magnetic material instead of a gas, and magnetizing and demagnetizing cycles instead of compression-expansion cycles. Magnetic cooling is a technique based on the magnetocaloric effect, in other words, it is based on the properties displayed by certain materials to modify their temperature when a magnetic field is applied to them. However, the applying of a magnetic field leads to many problems in current miniaturized technological devices (electronic chips, computer memories, etc.), since the magnetic field can interact negatively owing to its effect on nearby units. In this respect, the quest for new ways of controlling the magnetization is crucial.

Magnetism without magnetic fields

The researchers Luis Hueso, Andreas Berger and Odrej Hovorka of nanoGUNE have discovered that by using the straining of materials, they can get around the problems of applying a magnetic field. "By straining the material and then relaxing it an effect similar to that of a magnetic field is created, thus inducing the magnetocaloric effect responsible for cooling," explains Luis Hueso, leader of the nanodevices group at nanoGUNE and researcher in this study.

"This new technology enables us to have a more local and more controlled cooling method, without interfering with the other units in the device, and in line with the trend in the miniaturization of technological devices," adds Hueso.

20-nanometre films consisting of lanthanum, calcium, manganese and oxygen (La0.7Ca0.3MnO3) have been developed. According to Hueso, "the aim of this field of research is to find materials that are efficient, economical and environmentally friendly."

"The idea came about at Cambridge University and among various groups in the United Kingdom, France, Ukraine and the Basque Country we have come up with the right material and an effective technique for cooling electronic chips, computer memories and all these types of applications in microelectronics. Technologically, there would not be any obstacle to using them in fridges, freezers, etc. but economically it is not worthwhile because of the size," stresses Hueso.

Today, most of the money spent on the huge dataservers goes on cooling. That is why this new technology could be effective in applications of this kind. Likewise, one of the great limitations that computer processors have today is that they cannot operate as fast as one would like because they can easily overheat. "If we could cool them down properly, they would be more effective and could work faster," adds Hueso.

Dr Hueso stresses that this is a very interesting subject with respect to future patents.

Luis Hueso

Luis Hueso (Madrid, 1974) is an Ikerbasque researcher and leads the nanodevices team at nanoGUNE. He has a PhD in Physics from the University of Santiago de Compostela. Between 2002 and 2005 he was a Marie Curie fellow at Cambridge University where he developed a project on spin transport in carbon nanotubes. In 2006 he moved to the Consiglio Nazionale delle Ricerche (Italy) and in 2007 was appointed Professor at the University of Leeds. Since 2008, Luis Hueso has been pursuing his scientific research activities in the nanodevices team at nanoGUNE. He has been exploring materials and functionalities to be able to develop new electronic devices that constitute a revolution with respect to the current silicon-based ones, which could soon be reaching the limits of their capacity. It was in fact this work that in 2012 earned him the prestigious Starting Grant awarded by the European Research Council to the tune of 1.3 million euros.


Contact: Irati Kortabitarte
Elhuyar Fundazioa

Related biology technology :

1. Bayer HealthCares Cotavance® Drug Eluting Balloon With Paccocath® Technology Reduced Five-Year Target Lesion Revascularization Rates by 59 Percent in PAD Patients Compared to Those Treated With Uncoated Balloon
2. Positive Clinical Study Results for BSPs HyperQ Technology
3. Arizona State University engineers aim to improve performance of technology in extreme environments
4. iBioLaunch™ Technology Successfully Applied to Modified C1 Inhibitor
5. Pitt discoveries in quantum physics could change face of technology
6. Verenium to Present at Baird Clean Technology Conference
7. Puma Biotechnology Announces Completion of Private Placement
8. Roche NimbleGen and BGI Develop Advanced MHC Region Capture Technology for Human Disease and Biomedical Research
9. Animal Biotechnology - Technologies, Markets and Companies
10. The European Union Signs Grant Contract to Fund a 2 Million Euro Biotechnology Research Project Led by Hadassah College Jerusalem
11. Puma Biotechnology Announces Positive PB272 (Neratinib) Phase II Data at CTRC-AACR San Antonio Breast Cancer Symposium
Post Your Comments:
(Date:10/13/2015)... 2015 PharmaCyte Biotech, Inc. (OTCQB: PMCB) shares closed ... at near average with 1,308,352 shares being traded. PMCB shares ... hitting a low of $.072 in September, then bouncing back ... Our due diligence will show investors in PharmaCyte Biotech, ... report by using the link below at no cost. ...
(Date:10/13/2015)... , October 13, 2015 " Microbiology ... Forecast 2015 - 2023 " , the global ... is anticipated to reach US$7.59 bn by 2023, expanding at a ... --> " Microbiology Culture Market - Global Industry ... " , the global microbiology culture market was valued ...
(Date:10/13/2015)... TapImmune, Inc. (TPIV), a ... peptide and gene-based immunotherapeutics and vaccines for the treatment ... presenting company at the Dawson James Small Cap ... Jupiter, Florida on October 15, ... clinical-stage immunotherapy company specializing in the development of innovative ...
(Date:10/13/2015)... Charlotte, NC (PRWEB) , ... October 13, 2015 ... ... high intensity focused ultrasound (HIFU) technologies, announced today that it received de novo ... 450 in the U.S. for the ablation of prostate tissue. Sonablate® is ...
Breaking Biology Technology:
(Date:10/8/2015)... Calif. , Oct. 8, 2015 ... of human interface solutions, announced today that it ... of fiscal 2016 on Thursday, October 22, 2015, ... host a corresponding conference call for analysts and ... during which management may discuss forward-looking information.    ...
(Date:10/7/2015)... Sweden , October 8, 2015 ... the revenues for Fingerprint Cards (FPC) during third quarter 2015 ... revenue guidance of around 860 MSEK that was communicated 20 ... Considering a further strengthened delivery capacity and a continued growing ... quarter 2015 is estimated to be higher than during the ...
(Date:10/6/2015)... , Oct. 6, 2015  Maverix Biomics, Inc., ... enhancements to its software portfolio with the debut ... for differential expression in eukaryotes. The software is ... a cloud-based genomic analysis solution that leverages proven ... from next-generation sequencing efforts. Garry Nolan,s ...
Breaking Biology News(10 mins):