Spectroscopy studies on the diluted magnetic semiconductor(Ba1-xKx)(Zn1-yMny)2As2

来源 :第26届国际高压科学技术大会、第8届亚洲高压科技学术会议暨第19届中国高压科学技术会议(The 26th Interna | 被引量 : 0次 | 上传用户:shopfloor
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
  With a suite of x-ray spectroscopy experiments(dichroism,emission and absorption),we investigate doping-and pressure-induced changes in the electronic state of Mn 3d and As 4p orbitals in Ⅱ-Ⅱ-Ⅴ based diluted magnetic semiconductor(Ba1-x,Kx)(Zn1-y,Mny)2As2 to shed light into the mechanism of indirect exchange interactions leading to high ferromagnetic ordering temperature(Tc = 230 K in optimally doped samples).
其他文献
CaCO3 has been identified to be a dominant carbon-bearing mineral in the crust,mainly in pelagic marine sediments.
会议
Velocity-weakening fault property produces unstable slips on the fault interfaces.In the framework of rate-and state-dependent friction,velocity weakening is the result of a healing effect at intergra
会议
Serpentine,in which tetrahedral and octahedral sheets are bonded together in a 1∶1 layer by hydroxyl groups,forms by the hydration of basic and particularly ultrabasic rocks beneath mid-oceanic ridges
会议
Elastic properties of three high pressure polymorphs of CaCO3 are investigated based on first principles calculations.
会议
The behavior of high-pressure phases in mid-oceanic ridge basalt(MORB)has been extensively studied since the subduction of MORB may give rise to the chemical heterogeneity in the deep mantle.
会议
Recent studies showed that the water dissolved in lunar samples(including volcanic glasses,apatites,melt inclusions and anorthosites)can be as high as several thousand ppm,which indicated that the int
会议
The humite-group silicates,including norbergite,chondrodite,humite and clinohumite,are dense hydrous silicate minerals(DHSM)on the joint of olivine-brucite(Mg(OH)2),with CH2O > 3 wt.%.
会议
Pyroxene,with chemical compositions of XY(Si,Al)2O6,is one of the most abundant and seismic anisotropic mineral in the upper mantle [1,2].
会议
Mechanochromic fluorescence(MCF)materials with its fluorescence varying with its molecular packing have attracted more and more interests over the past ten years,[1] especially the materials with elec
会议
In this work,the structure stability of hexagonal Bi(PO4)(H2O)0.67 has been investigated by high-pressure synchrotron X-Ray diffraction measurements.
会议