Electronic Excitations in Cylinder Superlattices
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概要
- 論文の詳細を見る
A cylinder strjcerlattice is f'oruaaed 1)}' ?trr'strrgitug the S8lTl(2 holloxv ttrbtrles in a linestr larttice,Excitation jcr'operties are sttudied 1c3x ex'stltu?rtitag tlae dielectric f'trnction xvitlaira tlae Iittear-r'esponse?nppr'oxitaaattiorn. The electrotaic excitsrtions of' 21 cylirader strjoerlattice 2ll'C Clue strperjcositior'r of'tluoseof tlae individtral ttulctrles. Hoxx'exxer. tlmese txvo svsteua?s arm x'ery difl'erent f'rona 021Cll otlaer. Timeexcitatiouas of' dif['erent trsrrasf'erred jtr?gtrl;tr tt?ouaaet?t?t (L's) ar'e getaerally cotrpled in tlte ['OFll1Cl',xvhile they ?tre decotupled in tlae l;xtter. A c5'1it-tder strjcer'lstttice 11218 a laighl.)z ztnisotrojoic strtrcttrre,so the electronic excitations sLrorngly deperad 011 tlae raastgrmittrde (y) satnd the direction (&) of' t1?etransf'erred uttonaetattrtaa. It ttaight exluiloit txvo jolasuaaon lorstnches. The IOXV- atad laiglu-f'reqtrencyplaszaaons, respectix'ely, COIIIC f'rott? tlae L : 0 ttuad L ::: 1 collective excitations in all ttnlotrles.NX"laetlter tluey cottld exist is deterrtuittecl Tcy q ;'tnd 0. The coutajoatrison 2ll1lOI1.& taatrlti-cylinder'systettas, cylinder strperI?tttices, atad cylit?der lotrndles SIIOXVS th;tt tlaey, respectively, exlaibit one-,txvo- am?d three-dirtaetasion?t1 clx;tr?rcteristics it? the collectixxe excit?ttiotas, e..q.. tlae q-dependeuace of'tlae l)1218111011 ['I'(BCILI(2I1CN7. Tlais itnportstrtt difl'eretace is csttrsed Joy tlae difl'erernt COLIIOIIII) inter?rctiot?s.
- 社団法人日本物理学会の論文
- 1999-10-15
著者
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Lin Ming-fa
Department Of Physics National Cheng Kung University
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Shyu F‐l
Chinese Military Acad. Kaohsiung Twn
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LU Yan-Ten
Department of Physics, National Cheng Kung University
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Lu Yan-ten
Department Of Physics National Cheng Kung University
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SHYU Feng-Lin
Department of Physics,National Cheng Kung University
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Shyu Feng-lin
Department Of Electronics Engineering Fortune Institute Of Technology
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