000088897 001__ 88897
000088897 005__ 20180317093507.0
000088897 0247_ $$2doi$$a10.1103/PhysRevB.57.R13989
000088897 022__ $$a0163-1829
000088897 02470 $$2ISI$$a000074252500008
000088897 037__ $$aARTICLE
000088897 245__ $$aBrillouin-scattering observation of the TA-TO coupling in SrTiO3
000088897 260__ $$c1998
000088897 269__ $$a1998
000088897 336__ $$aJournal Articles
000088897 500__ $$aHehlen, B Univ Montpellier 2, Lab Verres, CNRS, UMR 5587, F-34095 Montpellier 5, France Univ Montpellier 2, Lab Verres, CNRS, UMR 5587, F-34095 Montpellier 5, France Inst Max Von Laue Paul Langevin, F-38042 Grenoble, France Ecole Polytech Fed Lausanne, Lab Ceram, CH-1015 Lausanne, Switzerland Hokkaido Univ, Res Inst Elect Sci, Sapporo, Hokkaido 060, Japan
000088897 500__ $$aZu948
000088897 500__ $$aTimes Cited:0
000088897 500__ $$aCited References Count:32
000088897 520__ $$aBrillouin scattering from transverse-acoustic modes of SrTiO3 is observed, while the frequencies of the soft polar modes are remeasured with hyper-Raman scattering. It is shown that an anomalous decrease of sound velocities at low temperatures results from the.coupling of the strain with the gradient of the electrical polarization fluctuations. The corresponding anomaly in the acoustic width indicates an inhomogeneous broadening of the soft polar mode.
000088897 6531_ $$aquantum paraelectric regime
000088897 6531_ $$astrontium-titanate
000088897 6531_ $$aphase
000088897 6531_ $$atemperature
000088897 6531_ $$atransition
000088897 6531_ $$aanomalies
000088897 6531_ $$astate
000088897 700__ $$aHehlen, B.
000088897 700__ $$0241820$$aArzel, L.$$g156070
000088897 700__ $$0240630$$aTagantsev, A. K.$$g106518
000088897 700__ $$aCourtens, E.
000088897 700__ $$aInaba, Y.
000088897 700__ $$aYamanaka, A.
000088897 700__ $$aInoue, K.
000088897 773__ $$j57$$k22$$qR13989-R13992$$tPhysical Review B
000088897 909CO $$ooai:infoscience.tind.io:88897$$particle$$pSTI
000088897 909C0 $$0252012$$pLC$$xU10334
000088897 937__ $$aLC-ARTICLE-1998-012
000088897 970__ $$a344/LC
000088897 973__ $$aEPFL$$rREVIEWED$$sPUBLISHED
000088897 980__ $$aARTICLE