Tài liệu Proceedings of Physical Phenomena at High Magnetic Fields - IV ppt

PPHMF-IV Proceedings of Physical Phenomena at High Magnetic Fields - IV Editors G. Boebinger Z. Fisk L. P. Gor'kov A. Lacerda J. R. Schrieffer World Scientific This page is intentionally left blank Proceedings of Physical Phenomena at High Magnetic Fields - IV Proceedings of Physical Phenomena at High Magnetic Fields - IV Santa Fe, New Mexico, USA 19-25 October 2001 Editors G. Boebinger Los Alamos National Laboratory, New Mexico, USA Z. Fisk National High Magnetic Field Laboratory, Florida State University, USA L. P. Gor'kov National High Magnetic Field Laboratory, Florida State University, USA A. Lacerda Los Alamos National Laboratory, New Mexico, USA J. R. Schrieffer National High Magnetic Field Laboratory, Florida State University, USA 0 World Scientific m Singapore • New Jersey • London • Hong Kong Published by World Scientific Publishing Co. Pte. Ltd. P O Box 128, Farrer Road, Singapore 912805 USA office: Suite IB, 1060 Main Street, River Edge, NJ 07661 UK office: 57 Shelton Street, Covent Garden, London WC2H 9HE British Library Cataloguing-in-Publication Data A catalogue record for this book is available from the British Library. PHYSICAL PHENOMENA AT HIGH MAGNETIC FIELDS-IV Copyright © 2002 by World Scientific Publishing Co. Pte. Ltd. All rights reserved. This book, or parts thereof, may not be reproduced in any form or by any means, electronic or mechanical, including photocopying, recording or any information storage and retrieval system now known or to be invented, without written permission from the Publisher. For photocopying of material in this volume, please pay a copying fee through the Copyright Clearance Center, Inc., 222 Rosewood Drive, Danvers, MA 01923, USA. In this case permission to photocopy is not required from the publisher. ISBN 981-02-4896-2 Printed in Singapore. PREFACE Physical Phenomena at High Magnetic Fields-IV (PPHMF-IV) was the fourth conference sponsored by the National High Magnetic Field Laboratory (NHMFL). The previous conferences were held in May, 1991, 1995, and 1998. These meetings brought together experts in scientific research areas where high magnetic fields could make an important impact. PPHMF-III devoted substantial time to reviewing the state of many fields in regard to the role of high magnetic fields, such as semiconductors, heavy fermions, superconductivity, and molecular conductors. Since these topics have been thoroughly examined in PPHMF-III, it was felt that the present conference should be devoted to recent developments in these fields. The conference which took place in October, 2001, at Santa Fe Convention Center in Santa Fe, NM, was organized with invited lectures in the morning and late afternoon and poster sessions in the early afternoon. This schedule permitted extensive discussion with the poster contributors and was judged to be an effective format by the 150 participants in attendance. As in the past conferences, World Scientific was chosen to be the publisher of the proceedings because of their excellent handling of the prior proceedings. The editors of these proceedings are pleased to acknowledge their gratitude to the many who worked so hard to bring about this most successful conference. We wish to thank the staff of the NHMFL, especially Wally Thorner of the NHMFL Educational Media Department, LeeRoy Herrera, Marion Hutton, Lou Miller and Alice Hobbs for taking care of the correspondence and travel arrangements. We would also like to warmly thank Julie Gallegos and Mary Layne, for their outstanding help in organizing this conference, and handling the production issues of these proceedings Finally, our heartfelt thanks to those who put behind them the fears and concerns of the September 11, 2001 events and boarded plans, trains, cars and made the PPHMF-IV conference a tremendous success. v This page is intentionally left blank CONTENTS Preface Part I Semiconductors/QHE Quantum Hall Effect in AlAs 2D Electron Systems 3 E. P. De Poortere, E. Tutuc, Y. P. Shkolnikov, K. Vakili, M. Shayegan, E. Palm and T. Murphy Tunneling in a Quantum Hall Excitonic Condensate* 9 J. P. Eisenstein, I. B. Spielman, L. N. Pfeiffer and K. W. West Quantum Hall Liquid Crystals 10 M. M. Fogler Ultrafast Manipulation of Electron Spin Coherence in Quantum Wells 16 J. A. Gupta, D. D. Awschalom, R. Knobel andN. Samarth Zero-Bias Conductance Anomaly in Bilayer Quantum Hall Systems 22 Y. N. Joglekar and A. H. MacDonald Some Fractions are more Special than Others: News from the Fractional Quantum Hall Zone 26 W. Pan, H. L. Stormer, D. C. Tsui, L. N. Pfeiffer, K. W. Baldwin andK. W. West Possible New Phases of Composite Fermions 32 V. W. Scarola, S. Y. Lee and J. K. Jain Intersubband Magnetophonon Resonances in Quantum Cascade Structures 38 D. Smirnov, O. Drachenko, J. Leotin, H. Page, C. Becker, C. Sirtori, V. Apalkov and T. Chakraborty Interference and Decoherence of Composite Fermions in the Quantum Hall Effect* 42 A. Stern * Abstract only VII VIII Current-Driven Magnons in Magnetic Multilayers* 43 M. Tsoi Contributed Papers Theory of Surface-Acoustic-Wave Propagation in the v= 5/2 Fractional Quantum Hall State* 47 K. C. Foster, N. E. Bonesteel andS. H. Simon High Magnetic Field Dependent Diamagnetic Shifts in Al x Ga,. x As Semiconductor Alloys 48 E. D. Jones, J. L. Reno, S. Crooker, K. K. Bajaj and G. Coli Effect of Strong Terahertz Radiation on Magnetoconductivity in Two-Dimensions 52 R. A. Lewis, W. Xu, P. M. Koenraad and I. V. Bradley Tunneling Zero-Bias Anomaly in the Ultra-Quantum Limit 56 D. L. Maslov, S. -W. Tsai andL. I. Glazman High Magnetic Field Optical Studies of Charged Exciton in CdTe 2D Electron Gases* 60 N. Negre, S. A. Crooker, A. Wojs and G. Karczewski Increase of Quantum Hall Plateau Widths due to Electron-Phonon Interaction 61 J. Riess, T. Duguet, P. Magyar and D. Bicout Search for Superluminal Propagation in High Magnetic Fields 65 J. Riess Impurities in a Magnetic-Field-Induced Luttinger Liquid 69 S W. Tsai, D. L. Maslov andL. I. Glazman Reconstruction of Fractional Quantum Hall Edges* 73 X. Wan, K. Yang and E. H. Rezayi Sample Cooling and Rotation at Ultra-Low Temperatures and High Magnetic Fields 74 J. S. Xia, E. D. Adams, N. S. Sullivan, W. Pan, H. L. Stormer andD, C. Tsui * Abstract only IX Part II Heavy Fermions Does the Heavy Electron Maintain its Integrity at Quantum Critical Point?* 81 P. Coleman Observation of a Second Energy Scale in YbAl 3 above 40 T 82 A. L. Cornelius, T. Ebihara, J. M. Lawrence, P. S. Riseborough and J. D. Thompson High Pressure Transport Study of Non-Fermi Liquid Behaviour in U 2 Pt 2 In and U 3 Ni 3 Sn 4 88 A. de Visser, P. Estrela and T. Naka The de Haas-van Alphen Effect in CeMIn 5 (where M = Rh and Co) 94 D. Hall. T. P. Murphy. E. C. Palm, S. W. Tozer, Z. Fisk, N. Harrison, R. G. Goodrich, U. Alver and J. L. Sarrao Superconducting and Normal State Properties of the Heavy Fermion Compound PrOs 4 Sbi 2 98 P C. Ho, V. S. Zapf, E. D. Bauer, N. A. Frederick, M. B. Maple, G. Giester, P. Rogl, S. T. Berger, C. H. Paul and E. Bauer Specific Heat Anomaly for H > 28.5 T in Celrln 5 104 J. S. Kim, J. Alwood, P. Kumar andG. R. Stewart Thermodyanamic Studies of the Field-Induced Gap in the Quasi-One-Dimensional S = 1/2 Antiferromagnet Yb 4 As 3 108 M. Lang, S. Zherlitsyn, B. Wolf, H. Aoki, T. Cichorek, P. Gegenwart, B. Schmidt, F. Steglich and A. Ochiai Two-Component Superconductivity of Heavy Fermionic Material UPt 3 * 114 V. P. Mineev and T. Champel CeMIn 5 (M = Co, Ir, Rh) Heavy Fermion Superconductors and the Utility of High Magnetic Fields 115 J. L. Sarrao * Abstract only [...]... nematic 12 By definition, the nematic is an anisotropic liquid 9 There is no long-range positional order As for the orientational order, it is long-range at T — 0 and quasi-long-range (power-law correlations) at finite T The nematic is riddled with dynamic dislocations It is often the case that the low-frequency long-wavelength physics of the system is governed by an effective theory involving a relatively... sample in magnetic field at higher carrier densities, we observe small dips in p x x at v = 13/3, 14/3, and 17/3, suggesting the development of a FQH state at these fillings as well To the best we know, states at such high fillings have not been observed in other materials, including in the highest-quality GaAs 2D electrons.19 As a tentative explanation for the presence the v = 1 1 / 3 FQH state, e.g.,... small in the long-wavelength limit) The collective excitations are charge-neutral fluctuations of the director They have a linear dispersion, w(q) = qy/Ka cos2 6 + K3j sin 2 6 (8) One interesting question is the nature of the zero-temperature smectic-nematic transition It is likely to be dislocation-mediated, which can be studied 14 combining classical 12,17 and quantum 18 theories of topological disordering... the Magnetic Breakdown Effect as a Function of Angle in the Organic Conductor K-(BEDT-TTF)2Cu(NCS)2 in High Magnetic Fields / Mihut, C C Agosta, C H Mielke andM Tokomoto * Abstract only 455 459 463 XX Electronic Scattering and Spin Disorder in 3d-Ferromagnets in the Paraprocess Regime B Raquet, J M Broto, M Viret, E Sondergard and O Cespedes Raman Scattering Study of Temperature-and Field-Dependent Magnetic. .. Terahertz Spectroscopy in High Magnetic Fields S A Crooker and A J Taylor Recent Advances in Low Temperature Thermometry in High Magnetic Fields* E C Palm, T P Murphy, S W Tozer and S T Hannahs * Abstract only 497 501 XXI Neutron Scattering in Magnetic Fields up to 17 T* K Prokes, P Smeibidl and M Meissner 502 Ultrasonic Spectrometers for Condensed Matter Studies at very High Magnetic Fields A Suslov, D Dasgupta,... Ketterson 503 High Pressure Techniques for Low Temperature Studies in DC and Pulsed Magnetic Fields* S W Tozer 507 Part VIII Instrumentation and Facility Development of High Magnetic Fields The Dresden 100 T/10 ms Project: A High Magnetic Field Facility at anIR-FEL* M Dorr, D Eckert, H Eschrig, F Fischer, P Fulde, R Groessinger, W Griinberger, A Handstein, D Hinz, R Kratz, H Krug, M Loewenhaupt, K.-H Miiller,... Multiple-Spin Exchange in 2D Films of 3He: NMR Studies C Parks, N S Sullivan and P Stachowiak 223 Order/Disorder Transitions of Ortho-Para Hydrogen Monolayers at Low Temperatures T S Sullivan, K Kim and V B Kokshenev V 227 Part V Superconductivity Magnetotransport in Cuprates and Related Compounds in High Magnetic Fields: Evidence for Preformed Bipolarons* A S Alexandrov 233 Spinless Impurities in Cuprates:... Superconductors* P Dai, H A Mook, S M Hayden, A Hiess, S.-H Lee andF Dogan 249 Far-Infrared Hall Effect in Normal State of YBCO* M Grayson, L Rigal, D C Schmadel, H D Drew and P.-J Kung 250 Pseudogap State of High Tc Cuprates: A Predominant Role of Spin Degrees of Freedom L Krusin-Elbaum, T Shibauchi, M P Maley, M Li and P H Kes Vortex Magnetism in the High- Temperatures Superconductor La2.xSrxCu04* B Lake, T... and Magnetization Studies of LaxSri_xMn03 T Caldwell, P L Kuhns, W G Moulton and A P Reyes Crystal-Field Effects in the First-Order Valence Transition in YblnCu4 Induced by External Magnetic Field* M Dzero 414 Tamm-Type of States at the Interface in Lai_xSrxMn03 (x=0.4, 0.55) Superlattices M Dzero andL P Gor'kov 415 Magnetic Resonances Observed in the High- Field Magneto-Optical Absorption of the Quantum... Department of Electrical Engineering, Princeton University, Princeton, NJ 08544 E PALM and T MURPHY National High Magnetic Field Laboratory, Tallahassee, FL 32310 We report on fabrication of two-dimensional electrons in AlAs quantum wells with mobilities up to 31 m2/Vs Magnetoresistance measurements reveal fractional quantum Hall states at high- order filling factors, and up to v = 11/3 Shubnikov-de Haas . left blank Proceedings of Physical Phenomena at High Magnetic Fields - IV Proceedings of Physical Phenomena at High Magnetic Fields - IV Santa Fe,. 98 1-0 2-4 89 6-2 Printed in Singapore. PREFACE Physical Phenomena at High Magnetic Fields- IV (PPHMF -IV) was the fourth conference sponsored by the National