简介：TheresistivityofHg0.89Mn0.11Tehasbeenmeasuredbythesuperconductingquantuminterferencedevicemagnetometerinthetemperaturerangefrom5to200Kundertheappliedmagneticfieldof1,2,4and6.5Tesla,respectively,comparedwiththatofno-magneticfield.Theresultsshowthattheresistivityincreaseswithincreaseappliedmagneticfieldathighertemperaturefrom80to200K,butdecreasesatlowertemperaturefrom5to25K.Thereexistsatransitiverangefrom25to80K,wherethevariationoftheresistivityshowsdifferenttendenciesdependingonthestrengthofmagneticfield.Maximumdifferenceofresistivityunder6.5Teslafromthatwithoutmagneticfieldinthetemperaturerangefrom30to200Kisonlyabout5Ω·cm,butitincreasesupto3ordersofmagnitudeat5K.TheanalysisshowsthatthevariationofresistivityofHg0.89Mn0.11Teunderthemagneticfieldisthealgebraicsumofthetransversedirectionmagnetoresistanceeffectandthesp-dexchangeinteractioneffect.TDRMEplaysmajorroleinthehightemperaturerange.However,withthedecreaseoftemperature,theeffectofsp-dEIontheresistivitygraduallyexceedsthatofthetransversedirectionmagnetoresistanceeffectthroughthetransitiverange,andbecomesthedominanteffectinthetemperaturerangefrom5to25K,whichleadstothedramaticdecreaseofresistivity.