d_<x^2-y^2> Wave Pairing Fluctuations and Pseudo Spin Gap in Two-Dimensional Electron Systems
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概要
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Psettdogajc Pl1Cl1OIl16l12l of' laigh-T. ctrprates atre ex;rtaaitaed. In tertaas of' AFINI (;tratiferronnagnetic) stnd dSC (d....x ,2-XX'0N7C strpercoracltrcting) atrxilitrry fields irutroduced to irategrate out fluef'erttaiot?s, t1?e efl'ectixxe atctiotu I'or 2D electrott s3zstenaas 'xvitla AFN4 artad dSC fltrctttaxtiot?s is COIUsidered. BN' tlae self'-consistent retaoruaa;tliz;ttiota (SCR), tlae NX?TR rel;txatioru r?tte 'T. ", the sjcincorrelatiota letagtla (, stnd Line jcaxiring cor'relatiota 1erugtl? .:.? are cstlctrlsrted. Frotaa tlais cttlctrlation,a utuecl?anisuta of' tlae j.csetrdogajc f'orraasttiota ettaerges srs tlae r'egiotu of' doutairaatut d-w?rve short-rangeorder (SF{0) oxzer AFlN'I-SRO. XN"laen cl?ttaaping for tlae AFK?I fluctuation strongly dejcetuds art tlaedSC correlation lerugth tlar'otrgh tlae fortaa;xtiorn of' prec.trrsor singlets arotrnd (m, 0) and (0, 7T) pointsin the taaonaaenttt?aa space, Clue )osevtdogap atpjcears it? a region of' tlae 1101111211 state characterizedby decreasing 1/V'l'Z" atad increatsirng AFINI correlatiora lengtla xvitla decrease in tenaaperattrre. Tlaisreprodtrces 21 characteristic feattrre of flue psetrdogtrp phenonaeuaa in l412ll1V vtnderdoped ctrpr?ttes.XN7luen tlae dataapirag becotaaes insettsitix'e to tlae dSC correlatiotu length, tlae psetrdogap regiottslariraks as in t1?e oxxen'dojced ctrprates.
- 社団法人日本物理学会の論文
- 1999-08-15
著者
-
Imada Masatoshi
Institute For Solid State Physics University Of Tokyo
-
Onoda Shigeki
Institute For Solid State Physics University Of Tokyo
-
Onoda Shigeki
Institute For Solid State Physics
-
Imada Masatoshi
Institute For Solid State Physics The University Of Tokyo
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