Nanotechnology Now







Heifer International

Wikipedia Affiliate Button


DHgate

Home > Press > New clues on the thermodynamic behaviour in small systems

Abstract:
The energy lost in small systems, like nanodevices, can be decisive in order to obtain an optimal functioning of this kind of systems. Under a thermodynamic point of view, the application of the stability theory and classical statistical mechanics to the description of small systems under destabilizing external conditions reveals a constant generation of heat while the system oscillates between two structural configurations or thermodynamic phases.

New clues on the thermodynamic behaviour in small systems

Barcelona, Spain | Posted on February 5th, 2014

A research published on the journal Physical Review E, and signed by Agustín Pérez, from the Department of Fundamental Physics of the University of Barcelona, and Iván Santamaría, from the National Autonomous University of Mexico, analyses the implications of the finite size of the system on its thermodynamic behaviour.

"The results obtained in this research are of great interest since they underlie the physics of the energy generation and conversion nanodevices. Potential applications have been recently reported for energy nano-generators, systems based on the pyroelectric effect, and electric energy storage systems like batteries", explains Agustín Pérez.

When a macroscopic system is subjected to destabilizing conditions, it separates into two or more phases that may coexist in equilibrium. This involves the formation of interfaces and, finally, new thermodynamic systems emerge.

However, when the system is finite and small enough, like nanodevices, the formation of an interface could imply an excessively high energetic cost and, therefore, becomes energetically unfavourable. Thus, this system will remain in a stationary state strongly sensitive to fluctuations. Nevertheless, since the thermodynamic parameters of both states differ from those of the external bath, a thermodynamic force known as critical oscillation appears driving the state of the system towards the unstable state externally imposed were again it cannot remain. "As a result of this description, it can be predicted that this peculiar behaviour of small systems underlie the dynamic of energy generating, storage or conversion nanodevices", Pérez concludes.


Full bibliographic information

I. Santamaría-Holek and A. Pérez-Madrid. "Thermostatistical Description of Small Systems in Non-Equilibrium Conditions: Energy Conversion and Harvesting". Physical Review E, 30 January 2014. DOI:10.1103/PhysRevE.89.012144

####

For more information, please click here

Contacts:
Bibiana Bonmati
+34 93 403 5544

Copyright © AlphaGalileo

If you have a comment, please Contact us.

Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.

Bookmark:
Delicious Digg Newsvine Google Yahoo Reddit Magnoliacom Furl Facebook

Related News Press

News and information

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Physics

New pathway to valleytronics January 27th, 2015

Visualizing interacting electrons in a molecule: Scientists at Aalto University and the University of Zurich have succeeded in directly imaging how electrons interact within a single molecule January 26th, 2015

Nano-beaker offers insight into the condensation of atoms January 21st, 2015

Atoms can be in 2 places at the same time: Researchers of the University of Bonn have shown that cesium atoms do not follow well-defined paths January 20th, 2015

Molecular Machines

Stomach acid-powered micromotors get their first test in a living animal January 27th, 2015

Nanoshuttle wear and tear: It's the mileage, not the age January 26th, 2015

Mysteries of ‘Molecular Machines’ Revealed: Phenix software uses X-ray diffraction spots to produce 3-D image December 22nd, 2014

Creation of 'Rocker' protein opens way for new smart molecules in medicine, other fields December 18th, 2014

Molecular Nanotechnology

Stomach acid-powered micromotors get their first test in a living animal January 27th, 2015

Nanoshuttle wear and tear: It's the mileage, not the age January 26th, 2015

Going with the flow January 16th, 2015

From the bottom up: Manipulating nanoribbons at the molecular level: Berkeley Lab and UC Berkeley team engineers the shape and properties of nanoscale strips of graphene January 12th, 2015

Discoveries

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Announcements

Evidence mounts for quantum criticality theory: Findings bolster theory that quantum fluctuations drive strange electronic phenomena January 30th, 2015

Everything You Need To Know About Nanopesticides January 30th, 2015

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Interviews/Book Reviews/Essays/Reports/Podcasts/Journals/White papers

DNA nanoswitches reveal how life's molecules connect: An accessible new way to study molecular interactions could lower cost and time associated with discovering new drugs January 30th, 2015

Crystal light: New light-converting materials point to cheaper, more efficient solar power: University of Toronto engineers study first single crystal perovskites for new solar cell and LED applications January 30th, 2015

Discovery Channel taps Angstron Materials for segment featuring graphene advances January 29th, 2015

Iranian Scientists Use MOFs to Eliminate Dye Pollutants January 29th, 2015

Battery Technology/Capacitors/Generators/Piezoelectrics/Thermoelectrics/Energy storage

Nexeon Board Changes Announced January 29th, 2015

'Bulletproof' battery: Kevlar membrane for safer, thinner lithium rechargeables January 28th, 2015

Toyocolor to Launch New Carbon Nanotube Materials at nano tech 2015 January 24th, 2015

Smart keyboard cleans and powers itself -- and can tell who you are January 21st, 2015

NanoNews-Digest
The latest news from around the world, FREE



  Premium Products
NanoNews-Custom
Only the news you want to read!
 Learn More
NanoTech-Transfer
University Technology Transfer & Patents
 Learn More
NanoStrategies
Full-service, expert consulting
 Learn More










ASP
Nanotechnology Now Featured Books




NNN

The Hunger Project







© Copyright 1999-2015 7th Wave, Inc. All Rights Reserved PRIVACY POLICY :: CONTACT US :: STATS :: SITE MAP :: ADVERTISE