Carrier localization in defected areas of (Cd, Mn)Te quantum well investigated via Optically Detected Magnetic Resonance employed in the microscale

被引：0

作者：

Dydnianski, A. ^{[1
]}

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

Raczynski, M. ^{[1
]}

Kazimierczuk, T. ^{[1
]}

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

Pacuski, W. ^{[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：

SOLID STATE COMMUNICATIONS | 2025年 / 396卷

关键词：

Optically detected magnetic resonance; Diluted magnetic semiconductors; Micro-reflectance; Quantum well; CHARGED EXCITONS; HETEROSTRUCTURES;

D O I：

10.1016/j.ssc.2024.115755

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

In this work, we study the impact of carrier localization on three quantities sensitive to carrier gas density at the micrometer scale: charged exciton (X+) oscillator strength, local free carrier conductivity, and the Knight shift. The last two are observed in a micrometer-scale, spatially resolved optically detected magnetic resonance experiment (ODMR). On the surface of MBE-grown (Cd,Mn)Te quantum well we identify defected areas in the vicinity of dislocations. We find that these areas show a much lower conductivity signal than the pristine part of the sample, while Knight shift values remain approximately unchanged. We attribute this behavior to carrier localization in the defected regions.

引用

页数：4

共 3 条

[1] Impact of the hole gas on optically detected magnetic resonance in (Cd,Mn)Te-based quantum wells
Lopion, A.
Bogucki, A.
Raczynski, M.
Snioch, Z.
Polczynska, K. E.
Pacuski, W.
Kazimierczuk, T.
Golnik, A.
Kossacki, P.
PHYSICAL REVIEW B, 2025, 111 (03)
[2] Spin engineering of carrier-induced magnetic ordering in (Cd,Mn)Te quantum wells
Kossacki, P
Pacuski, W
Maslana, W
Gaj, JA
Bertolini, M
Ferrand, D
Tatarenko, S
Cibert, J
PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 21 (2-4) : 943 - 946
[3] Magnetic quantum ratchet effect in (Cd, Mn) Te- and CdTe-based quantum well structures with a lateral asymmetric superlattice
Faltermeier, P.
Budkin, G. V.
Unverzagt, J.
Hubmann, S.
Pfaller, A.
Bel'kov, V. V.
Golub, L. E.
Ivchenko, E. L.
Adamus, Z.
Karczewski, G.
Wojtowicz, T.
Popov, V. V.
Fateev, D. V.
Kozlov, D. A.
Weiss, D.
Ganichev, S. D.
PHYSICAL REVIEW B, 2017, 95 (15)

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