RUI: Exploration of the New Class of Layered III-VI Diluted Magnetic Semiconductors

技术：这些新的层状III-VI稀释磁半导体（DMS）系统补充了II-VI DMS和Mn掺杂III-V DMS系统的巨大进展。III-VI DMS Ga1-xMnxSe表现出1.804 eV的强红色发射，归因于Mn。GaSe本身以其显著的非线性光学特性而闻名，是一种很有前途的光电子材料。在详细研究了In1-xMnxSe、Ga1-xMnxSe以及Fe和Co基材料之后，将对Ga1-xMnxS和In1-xMnxS进行研究。对Ga1-xMnxS的非线性磁化尺度分析表明，在11k时存在真正的自旋玻璃化转变。这一重要的结果增加了一类全新的自旋玻璃材料，并提出了空间维度对该系统中自旋玻璃转变的影响的有趣问题。对新材料的研究对于发现可用于未来设备的新系统和特性至关重要。就更广泛的影响而言，该项目涉及每年指导三名本科生。该研究小组目前包括1名女学生（目前在物理学中代表性不足）。该项目还使该本科院校有幸与一个本科院校和两个研究生院校的研究小组共享最先进的SQUID磁力计和物理性质测量系统（两种主要研究仪器）。非技术：这些新的层状薄膜稀释磁性半导体（DMS）系统补充了基于其他半导体主机的系统所取得的巨大进展。镓(Ga)-锰(mn)-硒（Se）体系表现出强烈的红光发射。GaSe本身以其卓越的光学特性而闻名，是一种有前途的光电子应用材料，如平板电视屏幕。我们将对其中几种材料进行研究，以进一步探索基于这些层状半导体主体的新型DMS的磁性、热学和电学性能。对新材料的研究对于发现可用于未来设备的新系统和特性至关重要。就更广泛的影响而言，该项目涉及每年指导三名本科生。该研究小组目前包括一名女学生（目前在物理学中代表性不足）。这个项目也让这所本科院校有幸与这所本科院校和两所研究生院校的研究小组共享两套最先进的测量系统。

Technical:These new layered III-VI Diluted Magnetic Semiconductor (DMS) systems complement the enormous progress in the II-VI DMS and the more recent efforts in the Mn doped III-V DMS systems. The III-VI DMS Ga1-xMnxSe exhibits a strong red emission at 1.804 eV attributed to the Mn. GaSe itself is known for its remarkable nonlinear optical properties and is a promising material for photoelectronic applications. Ga1-xMnxS and In1-xMnxS will be investigated in detail followed by a study of In1-xMnxSe, Ga1-xMnxSe and a survey of Fe and Co based materials. Non-linear magnetization scaling analysis on Ga1-xMnxS establishes there is a true spin-glass transition at 11 K. This important result adds a whole new class of spin-glass materials and raises interesting questions of the effect of spatial dimensionality on the spin-glass transition in this system. The investigation of new materials is essential for discovering novel systems and properties that can be used in future devices. In terms of broader impacts, this project involves mentoring three undergraduate students each year. The research group currently includes 1 female student (currently an underrepresented group in physics). This project also allows this undergraduate institution the honor of sharing a state-of-the-art SQUID magnetometer and a Physical Property Measurement System (2 major research instruments) with research groups at one undergraduate and two graduate institutions.Non-Technical:Thes new layered thin film diluted magnetic semiconductor (DMS) systems complement the enormous progress made in systems based on other semiconductor hosts. The Galium(Ga)-ManganeseMn)-Selinium(Se) system exhibits a strong red light emission. GaSe itself is known for its remarkable optical properties and is a promising material for photoelectronic applications such as flat TV screens. Several of these type materials will be investigated to further explore the magnetic, thermal, and electrical properties of this newest class of DMS based on these layered semiconductor hosts. The investigation of new materials is essential for discovering novel systems and properties that can be used in future devices. In terms of broader impacts, this project involves mentoring three undergraduate students each year. The research group currently includes one female student (currently an underrepresented group in physics). This project also allows this undergraduate institution the honor of sharing two state-of-the-art measurement system with research groups at this undergraduate and two graduate institutions.