Anomalous electronic state in CaCrO3 and SrCrO3.
نویسندگان
چکیده
Comprehensive measurements of electrical transport properties under pressure, thermal conductivity, magnetic susceptibility, and room-temperature compressibility have been used to characterize SrCrO3 and CaCrO3 perovskites synthesized under high pressure. Comparison with other narrow-band perovskite oxides suggests that their anomalous physical properties are correlated with bond-length instabilities caused by the crossover from localized to itinerant electronic behavior.
منابع مشابه
محاسبه ابتدا به ساکن انحنای بری و رسانایی ذاتی غیر عادی هال در مواد فرومغناطیس با استفاده از توابع وانیر بیشینه جایگزیده
Electronic properties for bcc Fe and hcp Co in bulk state and also Fe-Co alloy were calculated by quantum calculation based on density functional theory and pseudopotential method. Combination of Wannier function and Berry phase theory was used for calculation of anomalous Hall conductivity in above structures. It was seen that split of band by the spin orbit interaction, lying on the Fermi le...
متن کاملخواص ترابردی مغناطیسی واثر هال در نمونه هایGdpr-123
Single phase polycrystalline Gd1-xPrxBa2Cu3O7-δ samples with x=0.05 , 0.10, and 0.15 have been prepared by standard solid state reaction technique and characterized by XRD and SEM analysis. The electrical resistivity, Hall effect and magnetoresistance measurements have been on the samples. The electrical resistivity measurements indicate a reduction of transition temperature (Tc) and an incre...
متن کاملAnalysis of Electronic Learning Facilities Utilization among Agricultural Students of Michael Okpara University of Agriculture, Umudike Abia State, Nigeria
This study investigated utilization of electronic learning facilities among Agricultural students in Michael Okpara University of Agriculture, Umudike. One hundred and twenty (120) students undergoing training in different agricultural courses in the university were randomly selected. Data were collected with a structured questionnaire and analyzed with descriptive statistics such as frequency ...
متن کاملAnalysis of Power Electronic Converters Using the Developed State Space Averaging Method
Power electronic converters are non-linear time-dependent systems whose exact analysis without the use of computers is very difficult, and even using computer softwares requires a long time. Use of the state space averaging method, as will be mentioned, in addition to simplifying the analysis procedure which is a result of converting a time-dependent system to a time-independent one, reduces th...
متن کاملAnalysis of Power Electronic Converters Using the Developed State Space Averaging Method
Power electronic converters are non-linear time-dependent systems whose exact analysis without the use of computers is very difficult, and even using computer softwares requires a long time. Use of the state space averaging method, as will be mentioned, in addition to simplifying the analysis procedure which is a result of converting a time-dependent system to a time-independent one, reduces th...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Physical review letters
دوره 96 4 شماره
صفحات -
تاریخ انتشار 2006