Burns temperature

Burns temperature

The Burns temperature, Td, is the temperature where a ferroelectric material, previously in paraelectric state, starts to present randomly polarized nanoregions, that are polar precursor cluster. This behaviour is typical of several ferroelectric materials, but not of all, and was observed in lead titanate (PbTiO3), potassium niobate (KNbO3), lead lanthanum zirconate titanate (PLZT), lead magnesium niobate (PMN), lead zinc niobate (PZN), K2Sr4(NbO3)10, and strontium barium niobate (SBN).

The Burns temperature, named from Gerald Burns, who studied this phenomenon with collaboration of Frank H. Dacol, has not been well understood yet.

References

* [http://prola.aps.org/abstract/PRB/v28/i5/p2527_1 Gerald Burns and Frank H. Dacol, "Crystalline ferroelectrics with glassy polarization behavior", Phys. Rev. B 28, p.2527 - 2530 (1983)]
* [http://arxiv.org/pdf/cond-mat/0506132 S.A. Prosandeev et.al. "The significance of the Burns temperature in relaxor PMN"]
* [http://prola.aps.org/abstract/PRB/v34/i11/p7873_1 W. Kleemann and F. J. Schäfer, "Crystal optical studies of precursor and spontaneous polarization in PbTiO3", Phys. Rev. B 34, p.7873 - 7879 (1986)]


Wikimedia Foundation. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • What Burns Never Returns — Infobox Album | Name = What Burns Never Returns Type = Album Artist = Don Caballero Released = June 9, 1998 Recorded = late 1997 Genre = Math rock Length = 47:29 Label = Touch and Go Records TG185 Producer = Al Sutton Reviews = *Allmusic… …   Wikipedia

  • Thermodynamic temperature — is the absolute measure of temperature and is one of the principal parameters of thermodynamics. Thermodynamic temperature is an “absolute” scale because it is the measure of the fundamental property underlying temperature: its null or zero point …   Wikipedia

  • Low-temperature thermal desorption — NOTE: This article is largely taken verbatim from the EPA s How to Evaluate Alternative Cleanup Technologies for Underground Storage Tank Sites . cite web last = first = authorlink = coauthors = date = url = http://www.epa.gov/OUST/cat/lttd.htm… …   Wikipedia

  • Microwave burn — This article is about injury from direct microwave exposure. For other microwave oven related injuries, see Hazard section of Microwave oven. Microwave burns are burn injuries caused by thermal effects of microwave radiation absorbed in a living… …   Wikipedia

  • Liebeck v. McDonald's Restaurants — Full case name Stella Liebeck v. McDonald s Restaurants, P.T.S., Inc. and McDonald s International, Inc. Date decided Aug. 18, 1994 Citation(s) 1994 Extra LEXIS 23 (Bernalillo County, N.M. Dist. Ct. 1994), 1995 WL 360309 (Bernalillo County, N.M.… …   Wikipedia

  • Oxy-fuel welding and cutting — Oxyacetylene redirects here. For the song, see Cubanate. Side of metal, cut by oxygen propane cutting torch …   Wikipedia

  • Internal ballistics — Internal ballistics, a subfield of ballistics, is the study of a projectile s behavior from the time its propellant s igniter is initiated until it exits the gun barrel. The study of internal ballistics is important to designers and users of… …   Wikipedia

  • Burn — This article is about the injury. For other uses, see Burn (disambiguation). Burn Classification and external resources Second degree burn of the hand ICD 10 T …   Wikipedia

  • Radiation burn — Classification and external resources ICD 9 990 …   Wikipedia

  • Firefighting — Distinguish from a firefight, which means a battle with firearms. Firefighting is the act of extinguishing destructive fires. A firefighter fights these fires to prevent destruction of life, property and the environment. Firefighting is a highly… …   Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”