Excitons in bulk liquid 4He -: art. no. 233107

被引：13

作者：

Arms, DA ^{[1
]}

Graber, TJ

Macrander, AT

Simmons, RO

Schwoerer-Böhning, M

Zhong, Y

机构：

[1] Argonne Natl Lab, Adv Photon Source, Expt Facil Div, Argonne, IL 60439 USA

[2] Univ Chicago, Consortium Adv Radiat Sources, Chicago, IL 60637 USA

[3] Univ Illinois, Dept Phys, Urbana, IL 61801 USA

[4] Univ Illinois, Frederick Seitz Mat Res Lab, Urbana, IL 61801 USA

[5] ACCEL Instruments GmbH, Bergisch Gladbach, Germany

来源：

PHYSICAL REVIEW B | 2005年 / 71卷 / 23期

关键词：

D O I：

10.1103/PhysRevB.71.233107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We present the first measurements of excitons in bulk liquid He, performed at several densities. Inelastic x-ray scattering was used to take these measurements of He-4. The exciton measurements are very similar to those for solid He-4, with the exciton excitations occurring at nearly the same energy transfers for the same pressure. This similarity suggests that excitons in solid helium rely mostly on short range order. The measured peaks for the liquid are asymmetric in nature and fit well to two Gaussians, suggesting that at least two exciton transitions are present in the signal peak.

引用

页数：4

共 50 条

[1] Nonwetting of liquid 4He on Rb -: art. no. 212504
Klier, J
Wyatt, AFG
[J]. PHYSICAL REVIEW B, 2002, 65 (21): : 1 - 4
[2] Pressure dependence of phonon interactions in liquid 4He -: art. no. 054506
Smith, DHS
Vovk, RV
Williams, CDH
Wyatt, AFG
[J]. PHYSICAL REVIEW B, 2005, 72 (05):
[3] Interactions between sheets of phonons in liquid 4He -: art. no. 235302
Vovk, RV
Williams, CDH
Wyatt, AFG
[J]. PHYSICAL REVIEW LETTERS, 2003, 91 (23)
[4] Excitations of liquid 4He in disorder and boson localization -: art. no. 014514
Albergamo, F
Glyde, HR
Daughton, DR
Mulders, N
Bossy, J
Schober, H
[J]. PHYSICAL REVIEW B, 2004, 69 (01)
[5] Density pattern in supercritical flow of liquid 4He -: art. no. 104530
Ancilotto, F
Dalfovo, F
Pitaevskii, LP
Toigo, F
[J]. PHYSICAL REVIEW B, 2005, 71 (10):
[6] Two-dimensional clusters of liquid 4He -: art. no. 224514
Sarsa, A
Mur-Petit, J
Polls, A
Navarro, J
[J]. PHYSICAL REVIEW B, 2003, 68 (22):
[7] On superflow in solid 4He -: art. no. 092502
Saslow, WM
[J]. PHYSICAL REVIEW B, 2005, 71 (09)
[8] Resonant state in Λ4He -: art. no. 037302
Kahana, DE
Kahana, SH
Millener, DJ
[J]. PHYSICAL REVIEW C, 2003, 68 (03):
[9] High-energy phonon pulses in liquid 4He -: art. no. 144524
Vovk, RV
Williams, CDH
Wyatt, AFG
[J]. PHYSICAL REVIEW B, 2004, 69 (14) : 144524 - 1
[10] Quantum monte carlo simulation of overpressurized liquid 4He -: art. no. 145302
Vranjes, L
Boronat, J
Casulleras, J
Cazorla, C
[J]. PHYSICAL REVIEW LETTERS, 2005, 95 (14)

← 1 2 3 4 5 →