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  • March 6, 2015
  • 11:27 AM
  • 864 views

MRAM catches an STT

by Bryn Howells in Spin and Tonic

After a month long absence, Pick of the Week returns with a look at a fantastic commentary article on spin-transfer torque magnetoresistive random access memory...
The post MRAM catches an STT appeared first on Spin and Tonic.
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Kent, A., & Worledge, D. (2015) A new spin on magnetic memories. Nature Nanotechnology, 10(3), 187-191. DOI: 10.1038/nnano.2015.24  

  • March 3, 2015
  • 08:00 AM
  • 1,545 views

Star Trek Phasers, Coming To Us Sooner or Laser

by Mark E. Lasbury in The 'Scope

Can we make a Star Trek phaser? In a classic example of life imitating art, the militaries of many countries are actively pursuing such directed energy weapons. So far, we’ve developed high-energy lasers and masers, particle beams, and something that looks a lot like an aimed lightning bolt. But our versions are huge, what must be overcome to make hand-held versions?... Read more »

Shao, L., Cline, D., Ding, X., Ho, Y., Kong, Q., Xu, J., Pogorelsky, I., Yakimenko, V., & Kusche, K. (2013) Simulation prediction and experiment setup of vacuum laser acceleration at Brookhaven National Lab-Accelerator Test Facility. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 25-29. DOI: 10.1016/j.nima.2012.09.053  

Bartal, T., Foord, M., Bellei, C., Key, M., Flippo, K., Gaillard, S., Offermann, D., Patel, P., Jarrott, L., Higginson, D.... (2011) Focusing of short-pulse high-intensity laser-accelerated proton beams. Nature Physics, 8(2), 139-142. DOI: 10.1038/nphys2153  

Oxborrow, M., Breeze, J., & Alford, N. (2012) Room-temperature solid-state maser. Nature, 488(7411), 353-356. DOI: 10.1038/nature11339  

Peralta, E., Soong, K., England, R., Colby, E., Wu, Z., Montazeri, B., McGuinness, C., McNeur, J., Leedle, K., Walz, D.... (2013) Demonstration of electron acceleration in a laser-driven dielectric microstructure. Nature, 503(7474), 91-94. DOI: 10.1038/nature12664  

  • March 2, 2015
  • 03:46 AM
  • 558 views

Take the Strain – Joule Magnetostriction

by Bryn Howells in Spin and Tonic

Transformer Hum Whether you realise it or not you have probably already encountered magnetostriction at some point in your life. The characteristic ‘transformer hum‘ is...
The post Take the Strain – Joule Magnetostriction appeared first on Spin and Tonic.
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  • February 24, 2015
  • 02:51 PM
  • 392 views

How Reproductive is Your Professor?

by Bryn Howells in Spin and Tonic

Few of us will be surprised to hear that the academic job market is hugely competitive. What is surprising is how this paper uses techniques...
The post How Reproductive is Your Professor? appeared first on Spin and Tonic.
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  • February 24, 2015
  • 08:00 AM
  • 1,366 views

Seeing Our Way to Invisibility

by Mark E. Lasbury in The 'Scope

Is it possible to hide in plain sight? Star Trek had cloaking devices, and Harry Potter and Frodo Baggins had their magic cloaks. In real life, we can make things disappear too. Cloaking devices are quickly becoming reality, and we bend light to make them work.... Read more »

Choi, J., & Howell, J. (2014) Paraxial ray optics cloaking. Optics Express, 22(24), 29465. DOI: 10.1364/OE.22.029465  

Fan, P., Chettiar, U., Cao, L., Afshinmanesh, F., Engheta, N., & Brongersma, M. (2012) An invisible metal–semiconductor photodetector. Nature Photonics, 6(6), 380-385. DOI: 10.1038/nphoton.2012.108  

  • February 22, 2015
  • 12:29 PM
  • 806 views

Maxwell’s Equations – Let There Be Light!

by Bryn Howells in Spin and Tonic

Maxwell’s Equations Maxwell’s equations, just like spintronics itself, involve understanding and combining electricity and magnetism. Unsurprisingly then, Maxwell’s equations come up in spintronics research time...
The post Maxwell’s Equations – Let There Be Light! appeared first on Spin and Tonic.
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Maxwell J.C. (2010) On physical lines of force. Philosophical Magazine, 90(sup1), 11-23. DOI: http://dx.doi.org/10.1080/14786431003659180  

Maxwell James Clerk. (2009) A Dynamical Theory of the Electromagnetic Field. The Scientific Papers of James Clerk Maxwell, 526-597. DOI: http://dx.doi.org/10.1017/cbo9780511698095.028  

  • February 22, 2015
  • 11:13 AM
  • 832 views

Of tree rings and rain: drought predicted to worsen in southwestern United States

by Jonathan Trinastic in Goodnight Earth

Droughts have been severe in California and surrounding states, but will they be any worse than previous droughts in Earth's history? A combination of climate models and tree ring analysis provides an answer.... Read more »

Benjamin I. Cook, Toby R. Ault, Jason E. Smerdon. (2015) Unprecedented 21st century drought risk in the American Southwest and Central Plains. Science Advances. info:/

  • February 19, 2015
  • 02:16 PM
  • 504 views

What Place for Spintronics in the Future of Computing?

by Bryn Howells in Spin and Tonic

How sure is the future of spintronics? In field of spintronics, we can often be very sure of ourselves about what role we play in...
The post What Place for Spintronics in the Future of Computing? appeared first on Spin and Tonic.
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  • February 18, 2015
  • 06:17 PM
  • 710 views

The biofuel controversy

by Jonathan Trinastic in Goodnight Earth

Many countries are adding biofuels to their mandates for carbon-free, renewable energy? But does biofuel truly fit the bill? Not so much, contrary to what popular culture hopes to believe. Find out the details here.... Read more »

  • February 17, 2015
  • 07:05 AM
  • 1,500 views

I'll Beam Right Over

by Mark E. Lasbury in The 'Scope

Star Trek’s 50th anniversary is next year. Wouldn’t transporting a person to the ISS be a great way to celebrate? Well, there are a couple of problems to overcome, but we’re on our way. We have recently learned how to transport information and light from one place to another, without it ever existing anywhere in between! And this will help us make quantum computers that will be able to transport all the information contained in every atom of your body.... Read more »

Ma, X., Herbst, T., Scheidl, T., Wang, D., Kropatschek, S., Naylor, W., Wittmann, B., Mech, A., Kofler, J., Anisimova, E.... (2012) Quantum teleportation over 143 kilometres using active feed-forward. Nature, 489(7415), 269-273. DOI: 10.1038/nature11472  

Yokoyama, S., Ukai, R., Armstrong, S., Sornphiphatphong, C., Kaji, T., Suzuki, S., Yoshikawa, J., Yonezawa, H., Menicucci, N., & Furusawa, A. (2013) Ultra-large-scale continuous-variable cluster states multiplexed in the time domain. Nature Photonics, 7(12), 982-986. DOI: 10.1038/nphoton.2013.287  

  • February 16, 2015
  • 04:00 AM
  • 587 views

AMR – The Start of Something Special

by Bryn Howells in Spin and Tonic

William Thomson – The Father of Spintronics? This paper from 1856 helped trigger the entire field of spintronics – but you’d be forgiven for not...
The post AMR – The Start of Something Special appeared first on Spin and Tonic.
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  • February 14, 2015
  • 06:36 PM
  • 952 views

A very Sciencey Valentine’s day

by Dr. Jekyll in Lunatic Laboratories

Happy valentines day! Okay maybe it’s turned into more of a reason to spend money on chocolate and flowers than it is about showing affection — which is probably why some people hate it — but it can still be a somewhat special day. Unfortunately I’ve been struggling on what I could do for my wife on valentines day. So I thought I would work it out here and maybe even help a few of you who are stuck as well.... Read more »

  • February 13, 2015
  • 03:36 PM
  • 767 views

Interstellar helps physicists research spinning black holes

by Dr. Jekyll in Lunatic Laboratories

There is a saying that life imitates art and while people like to disagree with the meaning of it, sometimes art can imitate life. For instance the team responsible for the Oscar-nominated visual effects at the centre of Interstellar, have turned science fiction into science fact by providing new insights into the powerful effects of black holes.... Read more »

Oliver James, Eugenie von Tunzelmann, Paul Franklin, & Kip S. Thorne. (2015) Gravitational Lensing by Spinning Black Holes in Astrophysics, and in the Movie Interstellar. Classical and Quantum Gravity. arXiv: 1502.03808v1

  • February 10, 2015
  • 07:00 AM
  • 1,685 views

Sometimes Warped Thinking Is A Good Thing

by Mark E. Lasbury in The 'Scope

As Star Trek’s 50th anniversary approaches, are we getting closer to traveling at light speed? Believe it or not – yes, we are. We have begun to understand and harness the power of antimatter, and the plasma bubble-driven warp drive has moved from silly idea to serious consideration – so much so that NASA has designed a warp drive ship, the IXS Enterprise, of course.... Read more »

S. Beghella-Bartoli, P.M. Bhujbal, A. Nas. (2015) Confirmation of Santilli's detection of antimatter galaxies via a telescope with concave lens. America Journal of Modern Physics, 4(1), 34. info:/

Ganiev, Y., Gordeev, V., Krasilnikov, A., Lagutin, V., Otmennikov, V., & Panasenko, A. (2000) Aerodynamic Drag Reduction by Plasma and Hot-Gas Injection. Journal of Thermophysics and Heat Transfer, 14(1), 10-17. DOI: 10.2514/2.6504  

Ronan Keane, & Wei-Ming Zhang. (2012) Beamed Core Antimatter Propulsion: Engine Design and Optimization. J.Br.Interplanet.Soc. arXiv: 1205.2281v2

  • February 4, 2015
  • 07:04 PM
  • 601 views

How to keep the lights on when the fossil fuels are gone

by Jonathan Trinastic in Goodnight Earth

My second guest post at the Eyes on Environment blog at Nature's Scitable network. Check out how policy and technology will help integrate renewables into the electrical grid.... Read more »

  • February 2, 2015
  • 07:19 PM
  • 867 views

We can predict the chaos in climate change only so well

by Jonathan Trinastic in Goodnight Earth

New analysis in Nature shows that differences in actual and modeled temperature trends are due to natural variability in Earth's climate over short timescales. Read the details here!... Read more »

  • February 1, 2015
  • 10:02 AM
  • 933 views

FeRh: Making the transition to a well-understood potential spintronic material

by Bryn Howells in Spin and Tonic

FeRh is a metallic alloy that has been well investigated over the past 70 years or so, yet a thorough understanding of some of its...
The post FeRh: Making the transition to a well-understood potential spintronic material appeared first on Spin and Tonic.
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  • January 31, 2015
  • 03:02 PM
  • 898 views

New theory tries to define where black holes don’t exist

by Dr. Jekyll in Lunatic Laboratories

The quintessential feature of a black hole is its “point of no return,” or what is more technically called its event horizon, yes just like the movie. When anything—a star, a particle, or wayward human—crosses this horizon, the black hole’s massive gravity pulls it in with such force that it is impossible to escape. At least, this is what happens in traditional black hole models based on general relativity. In general, the existence of this event horizon is responsible for most of the ........ Read more »

  • January 25, 2015
  • 03:36 PM
  • 1,154 views

Will the ocean follow the land? Marine ecosystems at a tipping point to follow terrestrial defaunation

by Jonathan Trinastic in Goodnight Earth

Data suggests that marine life may soon follow the mass extinctions seen in terrestrial ecosystems - similarities and differences discussed here!... Read more »

McCauley, D., Pinsky, M., Palumbi, S., Estes, J., Joyce, F., & Warner, R. (2015) Marine defaunation: Animal loss in the global ocean. Science, 347(6219), 1255641-1255641. DOI: 10.1126/science.1255641  

  • January 22, 2015
  • 01:58 PM
  • 854 views

Magnetic domains get a DUI for driving under the influence of DMI

by Bryn Howells in Spin and Tonic

This Week’s Pick of the Past article took a retrospective look at the excitement that magnetic bubble memory caused in the 1970s.  The basic principle...
The post Magnetic domains get a DUI for driving under the influence of DMI appeared first on Spin and Tonic.
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