Cov lattice reciprocal plays lub luag haujlwm tseem ceeb hauv kev tshawb fawb feem ntau ntawm cov qauv ntu, tshwj xeeb hauv kev xav ntawm kev sib txawv. Nyob rau hauv neutron thiab X-ray diffraction, vim yog Laue tej yam kev mob, qhov sib txawv ntawm cov khoom xa tuaj thiab cov duab hluav taws xob sib txawv ntawm cov siv lead uayog cov kab lattice vector.
Yuav ua li cas yog reciprocal lattice teev nws cov khoom tseem ceeb?
Txhua yam khoom
Cov yam ntxwv tseem ceeb ntawm cov lattice sib txuas yog: … Qhov ntev ntawm cov kab lattice vectors yog proportional rau reciprocal ntawm qhov ntev ntawm cov ncaj lattice vectors
Dab tsi yog qhov zoo ntawm kev siv cov lattice reciprocal hla qhov chaw ncaj nraim hauv cov qauv siv lead ua tsom xam?
Qhov kev sib txuas ntawm cov lattice no muaj ntau qhov sib npaug uas cuam tshuam rau qhov sib luag ntawm cov kab ncaj nraimTsuav peb tsis paub cov qauv siv lead ua tsis paub thiab tshuaj xyuas cov ntaub ntawv sib txawv rau kev daws teeb meem cov qauv siv lead ua nws yooj yim nyob hauv qhov chaw uas peb muaj cov ntaub ntawv kev sim ncaj qha.
Yuav ua li cas cov lattice vectors sawv cev?
Nyob rau hauv physics, cov lattice reciprocal sawv cev Fourier hloov ntawm lwm lub lattice (feem ntau yog Bravais lattice) Hauv kev siv ib txwm, qhov no thawj lattice (uas hloov pauv yog sawv cev los ntawm cov lattice reciprocal.) feem ntau yog ib ntus ua haujlwm nyob rau hauv qhov chaw tiag tiag thiab tseem hu ua lub lattice ncaj qha.
Lub hom phiaj ntawm kev sib koom ua ke hauv kev txiav txim Miller indices yog dab tsi?
Cov vector sib raug zoo tsim los ntawm kev siv Miller indices ntawm lub dav hlau raws li nws cov khoom tsim cov vector hauv qhov chaw uas zoo li qub rau lub dav hlau Qhov ntev ntawm qhov sib thooj vector rau lub dav hlau yog qhov kev ncua deb ntawm ob lub dav hlau zoo sib xws. qhov ib txwm nrog txhua vector pw hauv lub dav hlau yuav yog xoom.
