Neutron Scattering Study of Soft Phonons and Diffuse Scattering in Insulating La_<1.95>Sr_<0.05>CuO_4(Condensed Matter : Electronic Structure, Electrical, Magnetic and Optical Properties)
スポンサーリンク
概要
- 論文の詳細を見る
Soft phonons and diffuse scattering in insulating La_<2-x>Sr_xCuO_4 (x = 0.05) have been studied by the neutron scattering technique. The X-point phonon softens from high temperature towards the structural transition temperature T_s = 410K, and the Z-point phonon softens again below 200 K. The Z-point phonon softening persists to low temperature, in contrast to the behavior observed in the superconducting x = 0.15 compound, in which the Z-point phonon hardens below T_c. The diffuse scattering associated with the structural phase transition at 410 K appears at commensurate positions. These results highlight interesting differences between superconducting and insulating samples.
- 社団法人日本物理学会の論文
- 2004-12-15
著者
-
SHIRANE Gen
Department of Physics, Brookhaven National Laboratory
-
WAKIMOTO Shuichi
Japan Atomic Energy Agency
-
R.J Birgeneau
MIT
-
Birgeneau R.
Ucberkeley
-
Birgeneau R
Univ. Toronto Ontario Can
-
Birgeneau R.
Department Of Physics And Cneter For Materials Science And Engineering
-
Shirane G
Department Of Physics Brookhaven National Laboratory
-
Shirane Gen
Department Of Physics Brookhaven National Laboratory
-
Birgeneau R
Department Of Physics University Of California
-
Birgeneau R.
Department Of Physics University Of Toronto Toronto
-
Birgeneau J.r.
Department Of Physics And Center For Materials Science And Enginnering Massachusetts Institute Of Te
-
Birgeneau J.
Department Of Physics Massachusetts Institute Of Technology
-
Lee Seunghun
Nist Center For Neutron Research National Institute Of Standards And Technology
-
GEHRING Peter
NIST Center for Neutron Reseach, NIST
-
WAKIMOTO Shuichi
Department of Physics, University of Toronto
-
BlRGENEAU Robert
Department of Physics, University of Toronto
-
Gehring P
Nist Md Usa
-
Shirane Gen
Brookhavcn National Laboratory Upion
-
Blrgeneau Robert
Department Of Physics University Of California
-
Wakimoto Shuichi
Department Of Physics Tohoku University
-
R.j Birgeneau
Univ. Toronto Ontario Can
-
Wakimoto Shuichi
Department Of Physics University Of Toronto
関連論文
- Neutron Scattering Studies of In-Plane Zone Boundary Phonons of YBa_2Cu_3O_(T_c≃53 K) and YBa_2Cu_3O_(T_c≃ 90 K)
- Critical Neutron Scattering Study of the Compositional Phase Transition in Mg-Doped CuGeO_3 : Condensed Matter: Electronic Properties, etc.
- Neutron Scattering Study of Temperature-Concentration Phase Diagram of (Cu_Mg_x) GeO_3
- Magnetic-Field-Induced Magnetic Phase Transitions Associated with Ferroelectricity in Multiferroic ErMn_2O_5(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- 28aTD-3 La_Sr_xCuO_4の高温正方晶での格子不安定性(28aTD 高温超伝導(中性子,X線,μSR,NMR),領域8(強相関系:高温超伝導,強相関f電子系など))
- 27a-ZL-12 銅酸化物超伝導体の2次元反強磁性スピン揺動
- Incommensurate Lattice Distortion in the High Temperature Tetragonal Phase of La_(Sr,Ba)_xCuO_4(Condensed matter: electronic structure and electrical, magnetic, and optical properties)
- 6p-Z-1 La_<:2-x>l:Sr_xCuO_<:4-y>l:の磁性と伝導における熱処理効果
- 3a-F-15 Nd_2CuO_4とLa_2CuO_4系の磁気的性質と2次元スピン揺動
- 3a-F-14 Nd_2CuO_4の磁気的逐次相転移と2次元スピン揺動