Rotons of composite fermions: Comparison between theory and experiment

被引:70
作者
Scarola, VW [1 ]
Park, K [1 ]
Jain, JK [1 ]
机构
[1] Penn State Univ, Dept Phys, Davey Lab 104, University Pk, PA 16802 USA
关键词
D O I
10.1103/PhysRevB.61.13064
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
This paper reports results of our comprehensive theoretical study of the rotons of composite fermions. The calculated roton energies at Landau-level fillings of 1/3, 2/5, and 3/7 are in excellent agreement with the energies measured in inelastic light scattering and ballistic phonon absorption experiments.
引用
收藏
页码:13064 / 13072
页数:9
相关论文
共 47 条
[1]   Theory of phonon spectroscopy in the fractional quantum Hall regime [J].
Benedict, KA ;
Hills, RK ;
Mellor, CJ .
PHYSICAL REVIEW B, 1999, 60 (15) :10984-10996
[2]   MONTE-CARLO SIMULATION OF A MANY-FERMION STUDY [J].
CEPERLEY, D ;
CHESTER, GV ;
KALOS, MH .
PHYSICAL REVIEW B, 1977, 16 (07) :3081-3099
[3]  
Das S., 1985, PHYS REV B, V32, P8442
[4]  
Das Sarma S., 1997, PERSPECTIVES QUANTUM
[5]   Spin and charge density excitations and the collapse of the fractional quantum Hall state at nu=1/3 [J].
Davies, HDM ;
Harris, JC ;
Ryan, JF ;
Turberfield, AJ .
PHYSICAL REVIEW LETTERS, 1997, 78 (21) :4095-4098
[6]   Ballistic phonon studies in the lowest Landau level [J].
Devitt, AM ;
Roshko, SH ;
Zeitler, U ;
Mellor, CJ ;
Kent, AJ ;
Benedict, KA ;
Cheng, T ;
Henini, M .
PHYSICA E, 2000, 6 (1-4) :47-51
[7]   FRACTIONAL QUANTUM HALL-EFFECT AROUND NU=3/2 - COMPOSITE FERMIONS WITH A SPIN [J].
DU, RR ;
YEH, AS ;
STORMER, HL ;
TSUI, DC ;
PFEIFFER, LN ;
WEST, KW .
PHYSICAL REVIEW LETTERS, 1995, 75 (21) :3926-3929
[8]   VARIATIONAL QUANTUM MONTE-CARLO NONLOCAL PSEUDOPOTENTIAL APPROACH TO SOLIDS - FORMULATION AND APPLICATION TO DIAMOND, GRAPHITE, AND SILICON [J].
FAHY, S ;
WANG, XW ;
LOUIE, SG .
PHYSICAL REVIEW B, 1990, 42 (06) :3503-3522
[9]   ENERGY SPECTRUM OF THE EXCITATIONS IN LIQUID HELIUM [J].
FEYNMAN, RP ;
COHEN, M .
PHYSICAL REVIEW, 1956, 102 (05) :1189-1204
[10]   MAGNETO-ROTON THEORY OF COLLECTIVE EXCITATIONS IN THE FRACTIONAL QUANTUM HALL-EFFECT [J].
GIRVIN, SM ;
MACDONALD, AH ;
PLATZMAN, PM .
PHYSICAL REVIEW B, 1986, 33 (04) :2481-2494