Impact of the hole gas on optically detected magnetic resonance in (Cd,Mn)Te-based quantum wells

被引：0

作者：

Lopion, A. ^{[1
,2
]}

Bogucki, A. ^{[1
]}

Raczynski, M. ^{[1
]}

Snioch, Z. ^{[1
]}

Polczynska, K. E. ^{[1
]}

Pacuski, W. ^{[1
]}

Kazimierczuk, T. ^{[1
]}

Golnik, A. ^{[1
]}

Kossacki, P. ^{[1
]}

机构：

[1] Univ Warsaw, Inst Expt Phys, Fac Phys, Ul Pasteura 5, PL-02093 Warsaw, Poland

[2] Univ Munster, Inst Phys, D-48149 Munster, Germany

来源：

PHYSICAL REVIEW B | 2025年 / 111卷 / 03期

关键词：

CHARGED EXCITONS; FERROMAGNETISM; MN2+; CD1-XMNXTE; SYSTEM; STATES; LIGHT;

D O I：

10.1103/PhysRevB.111.035307

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Optically detected magnetic resonance (ODMR) is a useful technique for studying interactions between local spins (magnetic ions) and the carrier gas. We present an ODMR study of a single (Cd,Mn)Te/(Cd,Mg)Te quantum wells (QWs) with the hole gas. We observe different characteristics of the ODMR signals obtained simultaneously using the optical signals of the neutral and positively charged exciton. From this, we infer the existence of local fluctuations of carrier gas density resulting in separate populations of Mn2+ ions. At the same time, the shape of the ODMR signal contains information about the temperature of the magnetic ions involved in the absorption of the microwaves. Studying it in detail provides even more information about the interactions with charge carriers. In the QW, two separate ensembles of ions are thermalized differently in the presence of carriers.

引用

页数：10

共 32 条

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