From the Archives
Archived discussions on CrazyEngineers

@Ambarish Ganesh • 13 Mar, 2014 • 4 likes
London Centre for Nanotechnology (LCN) researchers in their study with peers from Cambridge and Oxford have observed that thin films of spin ice reveal astounding properties that could aid in the development of applications of magnetricity (*magnetricity = magnetic equivalent of electricity).


Science had long established the maximum limit to how cols an object can be - what we know as the 'absolute zero' of temperature. Third law of Thermodynamics states that a substance's entropy is zero when the temperature of the substance equals absolute zero. Spin ice, however, poses an exception to this statement/law. The exception being, atomic magnetic moments stay random in the approach to absolute zero, resulting in properties like 'magnetic monopoles' which ordinary materials don't possess.

The researchers developed ultra-thin films of spin ice. At nearly half-degree above absolute zero, the entropy of the film ceased to exist, thereby implying that the Third Law of Thermodynamics is restored in these films. Via X-ray diffraction at LCN, the researchers showed how the films are somewhat strained by the “substrate” on which they are created, that leads to the loss in energy.

This opens up many avenues for the devices employing magnetricity, like computer hard disks. In hard disks the magnetic technology is most of the time based on magnetic films.

Source: LCN

Related Posts


@Ankita Katdare · Jan 8, 2016

Tata Sky has decided to make its service called 'Everywhere TV' accessible for free to all its subscribers. Back in 2013, the DTH operator had announced Everywhere TV on Tata...

@Kaustubh Katdare · Oct 6, 2008

CEans, Has anyone among us had a chance to try out Yamaha FZ16? If yes, could you please post a review (covering all the technical/non-technical) aspects of the motorcycle?

@Tanishka · Sep 20, 2009

I m a computer science student .Want some innovative ideas to organise technical events in my collz related to computers field only. Please do help and reply soon

@Koushal Patel · Jan 12, 2015

Wikipedia says, India has 5672+ Engineering Colleges in India with top 3 being Andhra Pradesh (960), Tamil Nadu (934) and Maharashtra (739). Google says, nearly 1.5 Million Engineering students Pass...

@N.Gowtham Raj · Feb 27, 2012

Hey guys... Today I got shortlisted for L&T build india scholarship exam....I ve got through 1st round... But i have to face the interview on 17th march.... My areas of...